{"cik":99771,"entityName":"TRINITY CAPITAL CORP","facts":{"dei":{"EntityCommonStockSharesOutstanding":{"label":"Entity Common Stock, Shares Outstanding","description":"Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","units":{"shares":[{"end":"2011-08-05","val":6449726,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-11-04","val":6449726,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2012-03-15","val":6449726,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2012Q1I"},{"end":"2012-05-10","val":6449726,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2012-08-08","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2014-11-12","val":6453049,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2014Q3I"},{"end":"2016-03-31","val":6526302,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2016Q1I"},{"end":"2016-09-30","val":6526302,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2016Q3I"},{"end":"2016-11-30","val":6526302,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-11-30","val":6526302,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-12-31","val":9199306,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-02-28","val":17513794,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2017Q1I"},{"end":"2018-02-28","val":19675356,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2018Q1I"}]}},"EntityPublicFloat":{"label":"Entity Public Float","description":"The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.","units":{"USD":[{"end":"2010-06-30","val":64238000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q2I"},{"end":"2010-06-30","val":64238000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":76948000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011Q2I"},{"end":"2013-06-30","val":32161000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2015-06-30","val":25967000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2015Q2I"},{"end":"2016-06-30","val":26105000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2016Q2I"},{"end":"2016-12-31","val":43697000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-06-30","val":27411737,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q2I"}]}}},"us-gaap":{"AccretionAmortizationOfDiscountsAndPremiumsInvestments":{"label":"Accretion (Amortization) of Discounts and Premiums, Investments","description":"The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-29000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":308000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":641000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-1174000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":526000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-928000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":928000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1257000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-1489000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":392000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-792000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":{"label":"Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment","description":"Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.","units":{"USD":[{"end":"2012-12-31","val":30322000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":32603000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":32603000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":34377000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":34377000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":35459000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":35459000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":24800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":24800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":25608000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2010-12-31","val":692000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":692000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":692000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":914000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-105000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":-139000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":-139000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":-139000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":-247000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-137000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":237000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-501000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":-501000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":-555000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":-555000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":-2781000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":-2781000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":-2781000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":-2781000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":-2781000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":676000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4091000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2992000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-5495000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":-5495000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":-5495000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":-5495000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":-5495000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":-5114000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":-3463000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":-3340000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":-3763000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":-3763000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":-3763000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":-3763000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":-9791000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":-10453000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":-12250000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"USD":[{"end":"2010-12-31","val":1899000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1899000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1899000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1937000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1957000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1976000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1976000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1976000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1982000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1997000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":2005000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2005000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2005000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1963000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1963000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1153000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1153000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1153000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1153000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1153000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":394000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":394000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":394000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-1373000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":694000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":694000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":694000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":694000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":29638000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":29669000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":29724000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":35071000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":35071000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":35071000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":35071000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":35332000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":35685000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":36222000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonvestedSharesRequisiteServicePeriodRecognition":{"label":"Adjustments to Additional Paid in Capital, Share-based Compensation, Nonvested Shares, Requisite Service Period Recognition (Deprecated 2013-01-31)","description":"This element represents the amount of recognized equity-based compensation related to nonvested shares during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":147000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":145000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":77000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition":{"label":"APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for restricted stock unit under share-based payment arrangement.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":82000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":82000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":15000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":16000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":49000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":50000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":91000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":91000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":273000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":217000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":612000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":1105000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":77000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":29000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":29000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"}]}},"AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts":{"label":"Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs","description":"Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":769000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":769000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"}]}},"AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation":{"label":"Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation","description":"Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":10000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment":{"label":"Allowance for Credit Losses, Change in Method of Calculating Impairment (Deprecated 2019-01-31)","description":"Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.","units":{"USD":[{"end":"2012-12-31","val":2700000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2700000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":669000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013Q4I"},{"end":"2013-12-31","val":669000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":669000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":88000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":88000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":88000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":14000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":14000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":14000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":1000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-12-31","val":30000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease":{"label":"Allowance for Loan and Lease Losses, Period Increase (Decrease)","description":"Amount of increase (decrease) of allowance reserve for credit loss.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":177000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"}]}},"AllowanceForLoanAndLeaseLossesWriteOffs":{"label":"Allowance for Loan and Lease Losses, Write-offs","description":"Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1900000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":2600000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"AmortizationOfIntangibleAssets":{"label":"Amortization of Intangible Assets","description":"The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":296000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":236000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":347000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":493000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":163000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":326000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":326000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":489000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":753000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"AmortizationOfMortgageServicingRightsMSRs":{"label":"Amortization of Mortgage Servicing Rights (MSRs)","description":"The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2499000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":924000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":1280000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":1656000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":383000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":756000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":756000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1124000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":3373000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1505000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":392000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":794000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":2027000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2027000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":219000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":219000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":219000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1672000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1672000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1673000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":766000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":359000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":1616000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1257000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1393000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1393000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1171000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1171000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1925000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":754000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1830000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":558000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":238000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":304000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-12-31","val":272000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":232549,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":137000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":137000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":42000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":42000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":26000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":42000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":26000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":26000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2010-12-31","val":1565442000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1565442000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1565442000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1552873000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1482833000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1546584000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1544459000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1528942000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1544912000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1511187000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1531000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1507342000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1550020000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1550020000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1446206000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1446206000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1398985000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1398985000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1436360000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1420370000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1412210000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1425626000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1356076000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1310866000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1322486000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":1283067000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1281846000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1253591000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax":{"label":"Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax","description":"Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2017-12-31","val":1522000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1522000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":187000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":115000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax":{"label":"Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax","description":"Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":12756000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":15101000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleDebtSecuritiesAmortizedCostBasis":{"label":"Debt Securities, Available-for-sale, Amortized Cost","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2013-12-31","val":124137000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":216945000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":318821000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":388527000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":459378000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":396429000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":457715000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":408308000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":438186000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":472303000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":472303000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":472303000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":482588000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":467685000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":452961000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleDebtSecuritiesGrossUnrealizedLoss":{"label":"Debt Securities, Available-for-sale, Unrealized Loss","description":"Amount of unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":258900000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":182800000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":159900000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":155900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":387000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":388600000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":301800000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":326400000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":327600000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":468300000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":455400000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":441100000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"AvailableForSaleSecurities":{"label":"Available-for-sale Securities","description":"Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.","units":{"USD":[{"end":"2010-12-31","val":162591000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":162591000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":162591000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":143269000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":136122000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":134711000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":134711000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":134711000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":126337000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":143378000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":112897000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":123304000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":123304000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":216022000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":216022000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":316040000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":316040000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":316040000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":316040000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":316040000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":389203000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":463470000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":399421000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":451089000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":404414000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":434521000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":468733000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":468733000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":470910000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax":{"label":"Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax","description":"Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.","units":{"USD":[{"end":"2012-12-31","val":642000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":312000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":312000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":496000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":496000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":442000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":442000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":442000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":442000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":442000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":3076000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6112000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4426000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":238000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":238000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":238000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":238000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":238000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":360000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":956000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1174000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1522000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1522000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":229000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax":{"label":"Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax","description":"Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.","units":{"USD":[{"end":"2012-12-31","val":247000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1145000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1145000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1419000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1419000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":3223000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":3223000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":3223000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":3223000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":3223000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2400000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2020000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1434000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":7494000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":7494000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":7494000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":7494000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":7494000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":6986000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4850000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4839000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":11907000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesAmortizedCost":{"label":"Available-for-sale Securities, Amortized Cost Basis","description":"This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.","units":{"USD":[{"end":"2011-12-31","val":134942000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":143605000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":112502000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":124137000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":124137000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":216945000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":216945000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":318821000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":318821000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":318821000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":318821000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":318821000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":388527000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":459378000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":396429000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":446906000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":457715000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":408308000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":438186000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":472303000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":472303000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":482588000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss","description":"Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.","units":{"USD":[{"end":"2015-12-31","val":65700000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":94500000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":103800000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":54000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":51300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":68400000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":77100000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":137200000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":224800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":225000000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":217400000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":244300000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-117000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":106000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-106000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":300000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":1244000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":1244000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1244000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1244000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":1244000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":1748000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1798000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":975000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":796000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":796000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":796000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":796000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2016-01-01","end":"2016-12-31","val":796000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1010000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":999000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2465000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":4306000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":4306000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":6811000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on securities classified as available-for-sale.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-247000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1145000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1145000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1419000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1419000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":3223000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":3223000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3223000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3223000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":3223000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":2400000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2020000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1434000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":7494000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":7494000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":7494000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":7494000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2016-01-01","end":"2016-12-31","val":7494000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":6986000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4850000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":4839000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":5092000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":5092000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":11907000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":59655000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":51869000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":37488000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":93584000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":93584000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":158620000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":158620000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":258923000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":258923000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":258923000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":258923000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":258923000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":182766000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":159861000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":155899000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":386958000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":386958000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":386958000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":386958000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":386958000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":388560000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":293897000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":318921000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":320224000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":320224000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":448556000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-130000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1039000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1039000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1119000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1119000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":1979000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":1979000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1979000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1979000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":1979000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":652000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":222000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":459000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":6698000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6698000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":6698000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":6698000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2016-01-01","end":"2016-12-31","val":6698000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":5976000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":3851000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2374000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":786000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":786000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":5096000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.","units":{"USD":[{"end":"2011-12-31","val":50116000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":42924000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":34677000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":82544000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":82544000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":135959000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":135959000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":193177000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":193177000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":193177000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":193177000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":193177000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":88239000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":56035000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":101901000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":335689000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":335689000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":335689000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":335689000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":335689000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":320154000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":224311000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":189206000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":102780000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":102780000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":238198000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer.","units":{"USD":[{"end":"2011-12-31","val":9539000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":8945000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":2811000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":11040000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":11040000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":22661000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":22661000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":65746000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":65746000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":65746000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":65746000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":65746000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":94527000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":103826000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":53998000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":51269000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":51269000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":51269000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":51269000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":51269000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":68406000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":69586000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":129715000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":217444000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":217444000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":210358000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost":{"label":"Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":9357000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11755000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":41215000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":41206000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":36321000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":31265000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":31249000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":31234000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":24098000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":16710000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":6590000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":6578000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":6566000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3209000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue":{"label":"Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10","description":"Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":9332000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11735000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":41202000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":42353000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":37803000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":32536000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":31189000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":31284000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":24269000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":16863000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":6608000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":6487000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":6439000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3189000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost":{"label":"Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":71995000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":57335000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":31008000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":20938000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":20942000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":20946000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":16176000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":31070000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":41111000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":48240000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":55421000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":65535000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":65540000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":65546000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":71007000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue":{"label":"Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five","description":"Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":72167000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":56996000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":30948000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":20877000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":21207000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":21299000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":16480000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":30695000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":40791000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":48071000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":55270000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":64800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":64008000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":63738000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":68699000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost":{"label":"Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":45365000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":26539000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":41190000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":41162000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":70077000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":29521000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":36181000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":49163000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":67452000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":108722000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":155201000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":161536000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":160920000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":157997000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue":{"label":"Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10","description":"Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":44934000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":26461000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":40563000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":40436000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":70170000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":29692000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":34755000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":47914000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":66948000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":108267000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":156193000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":157999000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":157406000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":152928000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost":{"label":"Available-for-sale Securities, Debt Maturities, Amortized Cost Basis (Deprecated 2014-01-31)","description":"Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.","units":{"USD":[{"end":"2012-06-30","val":143605000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost":{"label":"Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":16888000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":16557000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4042000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10777000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10749000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7721000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5204000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10205000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10203000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10201000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5201000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":201000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":201000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":201000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue":{"label":"Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One","description":"Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":16945000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":16611000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4052000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10761000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10751000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7723000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5207000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10204000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10198000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10195000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5200000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":201000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":200000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":200000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost":{"label":"Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue":{"label":"Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value","description":"Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"AvailableForSaleSecuritiesDebtSecurities":{"label":"Debt Securities, Available-for-sale","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2012-06-30","val":143378000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":123304000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":216022000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":316040000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":389203000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":463470000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":399421000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":439650000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":451089000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":404414000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":434521000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":468733000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":468733000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":468733000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":470910000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":455116000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":437975000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesFairValueDisclosure":{"label":"Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)","description":"This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.","units":{"USD":[{"end":"2011-12-31","val":134711000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":143378000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableForSaleSecuritiesGrossRealizedGainLossNet":{"label":"Available-for-sale Securities, Gross Realized Gain (Loss)","description":"This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":196000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":25000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":1057000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"AvailableForSaleSecuritiesGrossRealizedGains":{"label":"Available-for-sale Securities, Gross Realized Gains","description":"This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":202000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":28000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":1064000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":59000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":59000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":59000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":674000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":674000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":620000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":620000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":491000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":491000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":6000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":6000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":6000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":6000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":6000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":6000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":6000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds":{"label":"Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds (Deprecated 2018-01-31)","description":"The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":4142000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":24500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":24500000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":17184000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":17184000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":17184000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":111075000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":111075000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":66743000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"AvailableForSaleSecuritiesGrossRealizedLosses":{"label":"Available-for-sale Securities, Gross Realized Losses","description":"This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":6000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":3000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":7000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":150000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":150000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":139000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":139000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":139000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":490000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":490000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":490000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":490000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":307000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-307000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":1254000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1254000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1254000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1254000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1254000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1254000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1254000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"AvailableForSaleSecuritiesGrossUnrealizedLosses1":{"label":"Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31)","description":"This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":-880000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-824000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableForSaleSecuritiesPledgedAsCollateral":{"label":"Available-for-sale Securities Pledged as Collateral (Deprecated 2018-01-31)","description":"The fair value of available-for-sale securities that serve as collateral for borrowings.","units":{"USD":[{"end":"2014-12-31","val":44300000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2300000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2300000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2300000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2300000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2300000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":-180000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-433000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":-880000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-824000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":-700000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-391000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"AvailableforsaleSecuritiesGrossUnrealizedGain":{"label":"Available-for-sale Securities, Gross Unrealized Gains (Deprecated 2013-01-31)","description":"This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2011-12-31","val":649000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":597000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"BankOwnedLifeInsurance":{"label":"Bank Owned Life Insurance","description":"The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":10014000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10098000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10191000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":10191000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":10191000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":10191000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":10191000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":10282000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10374000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10462000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":25656000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":25656000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":25656000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":25656000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":25874000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":26094000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":26313000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"BankOwnedLifeInsuranceIncome":{"label":"Bank Owned Life Insurance Income","description":"Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":98000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-07-01","end":"2016-09-30","val":98000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":191000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":191000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":91000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":91000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":183000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":183000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":92000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":92000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":271000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":271000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":88000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":88000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":465000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":218000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":438000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":220000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":656000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":218000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"Capital":{"label":"Banking Regulation, Total Capital, Actual","description":"Amount of total capital as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":132269000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":141153000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":141153000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":130452000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":130454000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":128272000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":128272000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":128272000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":128272000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":128272000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":127636000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":127822000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":127248000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":178906000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":178906000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":178906000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":178906000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":178906000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":143350000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":144314000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":144827000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":152076000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":152076000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":152076000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":152076000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":144143000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":148980000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":151865000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CapitalLeaseObligations":{"label":"Capital Lease Obligations","description":"Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":2211000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2211000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":2211000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":2211000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2211000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":2211000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2211000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"CapitalLeaseObligationsCurrent":{"label":"Capital Lease Obligations, Current","description":"Amount of capital lease obligation due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2015-12-31","val":161000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"CapitalLeasesBalanceSheetAssetsByMajorClassNet":{"label":"Capital Leases, Balance Sheet, Assets by Major Class, Net","description":"The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.","units":{"USD":[{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":2211000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"CapitalLeasesFutureMinimumPaymentsDue":{"label":"Capital Leases, Future Minimum Payments Due","description":"Amount of minimum lease payments for capital leases.","units":{"USD":[{"end":"2013-12-31","val":3040000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":77000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsDueCurrent":{"label":"Capital Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":3040000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsExecutoryCosts":{"label":"Capital Leases, Future Minimum Payments, Executory Costs","description":"Amounts to be paid by lessee to lessor for maintenance, insurance, and tax expenses related to the leased asset.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments":{"label":"Capital Leases, Future Minimum Payments, Interest Included in Payments","description":"Amount necessary to reduce net minimum lease payments to present value for capital leases.","units":{"USD":[{"end":"2013-12-31","val":829000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsNetMinimumPayments1":{"label":"Capital Leases, Future Minimum Payments, Net Minimum Payments","description":"Amount of minimum lease payments for capital leases net of executory costs, which include amounts paid by the lessee to the lessor for insurance, maintenance and taxes.","units":{"USD":[{"end":"2013-12-31","val":3040000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments":{"label":"Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments","description":"Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.","units":{"USD":[{"end":"2013-12-31","val":2211000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"CapitalRequiredForCapitalAdequacy":{"label":"Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum","description":"Amount of minimum total risk-based capital required for capital adequacy as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":92042000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":82304000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":82304000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":73108000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":73108000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":72774000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":72774000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":72774000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":72774000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":72774000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":71050000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":71932000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":71416000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":71381000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":71381000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":71381000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":71381000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":71381000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":71605000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":68802000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":68254000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":66853000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":66853000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":66853000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":66853000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":68326000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":69487000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":69229000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CapitalRequiredForCapitalAdequacyToRiskWeightedAssets":{"label":"Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum","description":"Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.08,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.08,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.08,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.08,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.08,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.08,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.08,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.08,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.08,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.08,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.08,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.08,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.08,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.08,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.08,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.08,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.08,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.08,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.08,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.08,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.08,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.08,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.08,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.08,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.08,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.08,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.08,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.08,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CapitalToRiskWeightedAssets":{"label":"Banking Regulation, Total Risk-Based Capital Ratio, Actual","description":"Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.115,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.1372,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.1372,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.1427,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.1428,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.141,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.141,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.141,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.141,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.141,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.1437,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.1422,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.1425,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.2005,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.2005,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.2005,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.2005,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.2005,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.1602,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.1678,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.1698,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.182,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.182,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.182,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.182,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.1688,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.1715,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.1755,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CashAndCashEquivalentsAtCarryingValue":{"label":"Cash and Cash Equivalents, at Carrying Value","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2008-12-31","val":25262000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2008Q4I"},{"end":"2009-12-31","val":207495000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009Q4I"},{"end":"2009-12-31","val":207495000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2009-12-31","val":207495000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2010-06-30","val":93127000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2I"},{"end":"2010-09-30","val":166747000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3I"},{"end":"2010-12-31","val":106191000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-03-31","val":119760000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1I"},{"end":"2011-06-30","val":142151000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2I"},{"end":"2011-06-30","val":142151000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-09-30","val":74499000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":82883000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":82883000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":106808000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":108417000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":160960000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2012Q4I"},{"end":"2012-12-31","val":160960000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2012-12-31","val":160960000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":291198000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2013-12-31","val":291198000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":291198000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":291198000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2013Q4I"},{"end":"2014-12-31","val":247398000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":247398000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":247398000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":247398000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2014Q4I"},{"end":"2014-12-31","val":247398000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2014-12-31","val":247398000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":247398000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":219224000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1I"},{"end":"2015-06-30","val":260132000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":278383000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":188875000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":188875000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":167052000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":167052000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1I"},{"end":"2016-06-30","val":82503000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":82503000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":151920000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":151920000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2016Q4I"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":46697000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1I"},{"end":"2017-03-31","val":46697000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":81662000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2I"},{"end":"2017-06-30","val":81662000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-09-30","val":79967000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-09-30","val":79967000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":19520000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":16199000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":14691000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":182233000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-114368000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-40748000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-101304000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":13569000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":35960000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":35960000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-31692000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-23308000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-23308000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":23925000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":25534000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":78077000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":78077000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":130238000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":130238000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":130238000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-43800000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-43800000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-43800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-28174000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":12734000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":30985000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-58523000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-58523000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-58523000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-21823000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-21823000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-106372000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-106372000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-36955000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-36955000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-69540000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-69540000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-72638000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-72638000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-37673000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-37673000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-39368000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-39368000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-83901000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-15914000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-19235000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-20743000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"CashAndDueFromBanks":{"label":"Cash and Due from Banks","description":"For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.","units":{"USD":[{"end":"2010-12-31","val":16765000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":16765000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":16765000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":21603000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":17309000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":22690000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":22690000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":22690000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":17833000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":18482000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":19545000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":16799000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":16799000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":17202000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":17202000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":13506000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":13506000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":13506000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":13506000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":13506000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":13689000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":16734000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":14142000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":13537000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":13537000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":13537000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":13537000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":13537000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":12716000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":13993000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11733000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":12893000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":12893000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":12893000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":12893000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":10003000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12460000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11046000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations":{"label":"Cash and Securities Segregated under Federal and Other Regulations","description":"Amount of cash subject to withdrawal restrictions, restricted deposits held as compensating balances, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers).","units":{"USD":[{"end":"2015-12-31","val":4300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":4300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":4300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":7100000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CashCashEquivalentsAndFederalFundsSold":{"label":"Cash, Cash Equivalents, and Federal Funds Sold","description":"The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.","units":{"USD":[{"end":"2010-12-31","val":106191000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":106191000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":142151000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":74499000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":82883000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":106808000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":108417000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":160960000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":291198000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":291198000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":247398000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":247398000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":188875000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":188875000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":188875000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":167052000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":82503000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":151920000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":119335000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":46697000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":81662000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":79967000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":35434000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":19520000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":16199000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":14691000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CashUninsuredAmount":{"label":"Cash, Uninsured Amount","description":"The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.","units":{"USD":[{"end":"2017-12-31","val":1100000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"CommonEquityTierOneCapital":{"label":"Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual","description":"Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework.","units":{"USD":[{"end":"2016-12-31","val":60840000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":60840000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-09-30","val":99229000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":106320000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":106320000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":106320000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":106320000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":107453000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":112880000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":116952000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CommonEquityTierOneCapitalRatio":{"label":"Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual","description":"Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.","units":{"pure":[{"end":"2016-12-31","val":0.0682,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.0682,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-09-30","val":0.1163,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.1272,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.1272,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.1272,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.1272,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.1258,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.13,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.1351,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CommonEquityTierOneCapitalRequiredForCapitalAdequacy":{"label":"Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum","description":"Amount of minimum Common Equity Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.","units":{"USD":[{"end":"2016-12-31","val":40152000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":40152000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-09-30","val":38393000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":37605000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":37605000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":37605000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":37605000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":38433000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":39086000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":38941000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CommonStockNoParValue":{"label":"Common Stock, No Par Value","description":"Face amount per share of no-par value common stock.","units":{"USD/shares":[{"end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"CommonStockSharesAuthorized":{"label":"Common Stock, Shares Authorized","description":"The maximum number of common shares permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2010-12-31","val":20000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":20000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":20000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":20000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":20000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":20000000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":20000000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":20000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":20000000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":20000000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":20000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":20000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":20000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":20000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":20000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":20000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":20000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":20000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":20000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":20000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":20000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":20000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":20000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":20000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":20000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2010-12-31","val":6856800,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6856800,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":6856800,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":6856800,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6856800,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":6856800,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6856800,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":6856800,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":6856800,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":6856800,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":6856800,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":6856800,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":6856800,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":6856800,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6856800,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":6856800,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":9199306,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":9199306,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":9249283,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2010-12-31","val":6449726,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6449726,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":6449726,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":6449726,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6449726,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":6449726,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6449726,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":6449726,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":6449726,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":6449726,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":6449726,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":6453049,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":6453049,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":6491802,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":6491802,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6491802,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6491802,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":6491802,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":6526302,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6526302,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6526302,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":9199306,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":9199306,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":9249283,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2010-12-31","val":6836000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6836000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":6836000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":6836000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6836000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6836000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":6836000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6836000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":6836000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6836000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":6836000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":6836000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":6836000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":6836000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":6836000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":6836000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":6836000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6836000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6836000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":6836000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":6836000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6836000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6836000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":9510000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":9510000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":9543000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1899000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":2233000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":2054000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":3077000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":1023000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-24239000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6258000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":2407000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":239000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-2168000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-2132000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-2132000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":12125000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":12125000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":12125000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-6046000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-6046000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-6046000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1492000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1795000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":-65000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2643000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":848000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-312000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-312000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-312000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":4188000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":4188000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":8088000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":8088000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":3900000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":3900000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":7780000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":7780000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-308000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-308000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":13399000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":13399000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-105000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-105000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-58000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-58000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":50000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":50000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":470000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":470000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":528000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":528000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-3562000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-4336000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-700000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":3635000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1019000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1718000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets":{"label":"Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset","description":"Amount of contractually specified servicing fee, late fee, and ancillary fee recognized as income for servicing asset and servicing liability.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":179000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":150000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":150000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":225000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":225000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":225000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":191000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":191000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":191000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":54000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":123000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":69000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":156000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":33000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":182000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":182000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":182000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":36000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":36000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":64000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":64000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":28000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":28000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":42000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":42000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":11000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":11000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":53000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":53000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":18000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":18000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":36000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":18000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":59000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":23000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":75000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"ConversionOfStockAmountConverted1":{"label":"Conversion of Stock, Amount Converted","description":"\"The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"\"Part noncash\"\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.\"","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":37089000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":37089000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":37089000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":37089000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":37089000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":37089000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":37089000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"CumulativeEffectOnRetainedEarningsBeforeTax1":{"label":"Cumulative Effect on Retained Earnings, before Tax (Deprecated 2020-01-31)","description":"Amount of the cumulative effect on retained earnings before related income tax effect.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":83018000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"}]}},"CumulativeEffectOnRetainedEarningsNetOfTax1":{"label":"Cumulative Effect on Retained Earnings, Net of Tax (Deprecated 2020-01-31)","description":"Amount of the cumulative effect on retained earnings net of related income tax effect.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-8793000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"}]}},"CumulativeEffectOnRetainedEarningsTax1":{"label":"Cumulative Effect on Retained Earnings, Tax (Deprecated 2020-01-31)","description":"Amount of the related income tax effect of a cumulative effect on retained earnings.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-6943000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"}]}},"CurrentFederalTaxExpenseBenefit":{"label":"Current Federal Tax Expense (Benefit)","description":"Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-451000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":3612000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"CurrentStateAndLocalTaxExpenseBenefit":{"label":"Current State and Local Tax Expense (Benefit)","description":"Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-56000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":1544000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger":{"label":"Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.","units":{"USD":[{"end":"2017-12-31","val":217444000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":217444000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":202118000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":227111000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss":{"label":"Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.","units":{"USD":[{"end":"2017-12-31","val":4306000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":4306000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":7470000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":9397000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months":{"label":"Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.","units":{"USD":[{"end":"2017-12-31","val":102780000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":102780000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":232706000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":191144000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss":{"label":"Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.","units":{"USD":[{"end":"2017-12-31","val":786000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":786000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":5286000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5704000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleRestricted":{"label":"Debt Securities, Available-for-sale, Restricted","description":"Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2018-06-30","val":19200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":15400000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleUnrealizedLossPosition":{"label":"Debt Securities, Available-for-sale, Unrealized Loss Position","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.","units":{"USD":[{"end":"2017-12-31","val":320224000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":320224000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":434824000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":418255000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss":{"label":"Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.","units":{"USD":[{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5092000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":12756000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":15101000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DeferredFederalIncomeTaxExpenseBenefit":{"label":"Deferred Federal Income Tax Expense (Benefit)","description":"Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-4016000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1387000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1387000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3996000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3996000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3996000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1621000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-1621000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1621000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-188000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-188000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-188000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":772000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":772000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":1829000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"DeferredIncomeTaxAssetsNet":{"label":"Deferred Income Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.","units":{"USD":[{"end":"2016-12-31","val":15437000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2017-12-31","val":10143000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":10143000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":10143000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":10143000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":12008000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12054000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11621000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"USD":[{"end":"2012-12-31","val":5641000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":5570000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5570000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":5061000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":5061000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":4634000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":4634000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4744000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":4744000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":1118000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredStateAndLocalIncomeTaxExpenseBenefit":{"label":"Deferred State and Local Income Tax Expense (Benefit)","description":"Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-455000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-92000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-92000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":324000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":324000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":324000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-206000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-206000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-206000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":242000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":242000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":242000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":375000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":375000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":-268000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"DeferredTaxAssetsCharitableContributionCarryforwards":{"label":"Deferred Tax Assets, Charitable Contribution Carryforwards","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible charitable contribution carryforwards.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":41000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsGoodwillAndIntangibleAssets":{"label":"Deferred Tax Assets, Goodwill and Intangible Assets","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.","units":{"USD":[{"end":"2012-12-31","val":493000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":456000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":456000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":418000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":418000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":377000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":377000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":256000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"DeferredTaxAssetsGross":{"label":"Deferred Tax Assets, Gross","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2011-12-31","val":14600000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2011-12-31","val":14600000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2011-12-31","val":14600000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2011-12-31","val":14600000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":14600000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2011-12-31","val":14600000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2011-12-31","val":14600000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2012-12-31","val":21487000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":17096000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":17096000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":19584000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":19584000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":11800000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":19844000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":19844000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":11800000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":15200000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":10400000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":12500000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":11400000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":20568000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":20568000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":13767000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsLiabilitiesNet":{"label":"Deferred Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":20181000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":20181000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":11261000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsNet":{"label":"Deferred Tax Assets, Net of Valuation Allowance","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2010-12-31","val":5587000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":5587000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":5587000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":5706000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6980000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8102000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":8102000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":8102000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":7625000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6785000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"DeferredTaxAssetsOperatingLossCarryforwards":{"label":"Deferred Tax Assets, Operating Loss Carryforwards","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.","units":{"USD":[{"end":"2012-12-31","val":2572000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":325000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":325000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":3002000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":3002000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":4687000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":4687000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":6010000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":6010000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":3436000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsOther":{"label":"Deferred Tax Assets, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.","units":{"USD":[{"end":"2016-12-31","val":1376000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1895000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsTaxCreditCarryforwards":{"label":"Deferred Tax Assets, Tax Credit Carryforwards","description":"Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.","units":{"USD":[{"end":"2012-12-31","val":1576000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1475000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1475000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1970000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1970000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2827000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2827000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2830000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2827000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":2914000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax":{"label":"Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.","units":{"USD":[{"end":"2014-12-31","val":377000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":173000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":173000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":173000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation.","units":{"USD":[{"end":"2014-12-31","val":728000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":566000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":566000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":310000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.","units":{"USD":[{"end":"2012-12-31","val":160000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":160000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":160000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":160000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":160000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":237000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":237000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":22000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the provision for loan losses.","units":{"USD":[{"end":"2014-12-31","val":10916000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":7106000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":7106000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5904000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":5904000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":4049000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross":{"label":"Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses on available-for-sale securities.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":332000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":332000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":368000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":368000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1109000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1109000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2870000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2870000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":916000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsValuationAllowance":{"label":"Deferred Tax Assets, Valuation Allowance","description":"Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.","units":{"USD":[{"end":"2014-12-31","val":19584000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":19844000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":19844000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":387000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":387000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":387000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1500000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2400000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2500000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":2506000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":2500000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2500000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2700000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DeferredTaxLiabilities":{"label":"Deferred Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4744000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":4744000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":1118000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesInvestments":{"label":"Deferred Tax Liabilities, Investments","description":"Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments).","units":{"USD":[{"end":"2012-12-31","val":2000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"}]}},"DeferredTaxLiabilitiesMortgageServicingRights":{"label":"Deferred Tax Liabilities, Mortgage Servicing Rights","description":"Amount of deferred tax liability attributable to taxable temporary differences from mortgage servicing rights.","units":{"USD":[{"end":"2012-12-31","val":2780000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3289000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3289000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":2972000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2972000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2722000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2722000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2731000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2731000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesOther":{"label":"Deferred Tax Liabilities, Other","description":"Amount of deferred tax liability attributable to taxable temporary differences classified as other.","units":{"USD":[{"end":"2016-12-31","val":5000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2017-12-31","val":86000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesPrepaidExpenses":{"label":"Deferred Tax Liabilities, Prepaid Expenses","description":"Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.","units":{"USD":[{"end":"2012-12-31","val":506000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":577000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":577000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":656000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":656000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":636000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":636000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":756000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":756000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":220000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesPropertyPlantAndEquipment":{"label":"Deferred Tax Liabilities, Property, Plant and Equipment","description":"Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.","units":{"USD":[{"end":"2012-12-31","val":2196000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1699000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1699000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1429000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1429000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1273000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1273000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1252000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1252000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":812000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities":{"label":"Deferred Tax Liabilities, Unrealized Gains on Trading Securities","description":"Amount of deferred tax liability attributable to taxable temporary differences from unrealized gains on trading securities.","units":{"USD":[{"end":"2012-12-31","val":157000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"DefinedContributionPlanEmployerDiscretionaryContributionAmount":{"label":"Defined Contribution Plan, Employer Discretionary Contribution Amount","description":"Amount of discretionary contributions made by an employer to a defined contribution plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":140000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":287000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":287000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"Deposits":{"label":"Deposits","description":"The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.","units":{"USD":[{"end":"2010-12-31","val":1358345000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1358345000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1358345000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1347756000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1277131000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1327127000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1327127000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1327127000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1349612000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1350507000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":1393139000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1383065000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1383065000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1282592000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1282592000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1253958000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1253958000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1253958000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1253958000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1253958000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1285972000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1264294000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1253190000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1207420000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1207420000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1215089000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1215089000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1215089000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1206484000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1164707000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1167319000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1127347000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1127347000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":1127347000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":1127347000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":1144094000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1122921000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1097413000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DepositsMoneyMarketDeposits":{"label":"Deposits, Money Market Deposits","description":"Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.","units":{"USD":[{"end":"2017-12-31","val":18344000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":18344000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":19652000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":18976000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW":{"label":"Deposits, Money Market Deposits and Negotiable Order of Withdrawal (NOW)","description":"Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts. Also includes amount of deposits in interest-bearing transaction accounts at banks or savings and loans, that are restricted in regard to ownership and can usually only be held by individuals, nonprofit entities and governments. Negotiable order of withdrawal accounts differ from money market demand accounts as they typically have higher reserve requirements and no limit on the number of checks that can be written.","units":{"USD":[{"end":"2014-12-31","val":430708000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":511423000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":511423000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":511423000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":511423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":511423000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":536981000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":512606000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":576984000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":405268000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":405268000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":405268000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":405268000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":558941000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":429775000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":408780000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":401269000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":404225000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":404225000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":428436000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"DepositsNegotiableOrderOfWithdrawalNOW":{"label":"Deposits, Negotiable Order of Withdrawal (NOW)","description":"Amount of deposits in interest-bearing transaction accounts at banks or savings and loans, that are restricted in regard to ownership and can usually only be held by individuals, nonprofit entities and governments. Negotiable order of withdrawal accounts differ from money market demand accounts as they typically have higher reserve requirements and no limit on the number of checks that can be written.","units":{"USD":[{"end":"2017-12-31","val":385881000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":385881000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":393386000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":376405000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DepositsSavingsDeposits":{"label":"Deposits, Savings Deposits","description":"Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).","units":{"USD":[{"end":"2014-12-31","val":432017000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":380045000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":380045000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":380045000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":380045000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":380045000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":388481000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":394721000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":409856000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":407606000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":407606000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":407606000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":407606000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":407606000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":413735000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":405177000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":399258000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":388300000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":388300000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":388300000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":388300000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":388901000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":377811000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":379213000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"Depreciation":{"label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":2409000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1653000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1653000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":1434000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1515000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":1371000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"DepreciationAmortizationAndAccretionNet":{"label":"Depreciation, Amortization and Accretion, Net","description":"The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2660000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1551000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":2283000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":3040000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":759000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1526000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1526000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2264000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":3008000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3008000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":765000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1484000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":2889000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2889000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2658000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2658000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2658000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2409000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2409000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2409000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":461000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":874000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":1273000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":1653000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":4703000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1653000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":376000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1076000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":768000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":4509000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1147000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":5423000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5423000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1904000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1904000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":3496000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":3496000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":5104000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":5104000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":6632000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2062000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":4029000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":5778000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"DerivativeAssetNotionalAmount":{"label":"Derivative Asset, Notional Amount","description":"Nominal or face amount used to calculate payments on the derivative asset.","units":{"USD":[{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"DerivativeHigherFixedInterestRateRange":{"label":"Derivative, Higher Fixed Interest Rate Range (Deprecated 2016-01-31)","description":"High end of the range of fixed interest rates when a range is presented for a group of interest rate derivatives.","units":{"pure":[{"end":"2013-12-31","val":0.105,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.105,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"DerivativeLowerFixedInterestRateRange":{"label":"Derivative, Lower Fixed Interest Rate Range (Deprecated 2016-01-31)","description":"Low end of the range of fixed interest rates when a range is presented for a group of interest rate derivatives.","units":{"pure":[{"end":"2013-12-31","val":0.019,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.02,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"DividendsCommonStock":{"label":"Dividends, Common Stock","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-4315000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2011-01-01","end":"2011-12-31","val":1612000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1612000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":967000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":967000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"}]}},"DividendsPayableCurrentAndNoncurrent":{"label":"Dividends Payable","description":"Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.","units":{"USD":[{"end":"2011-12-31","val":242000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":242000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":243000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1700000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1700000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":4800000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":4800000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":8700000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":8700000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":8700000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":8700000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":9700000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10800000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":11900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"}]}},"DividendsPreferredStock":{"label":"Dividends, Preferred Stock","description":"Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-1469000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-1949000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1964000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1964000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":1937000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1937000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1966000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1966000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1966000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3052000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3052000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3052000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":947000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1915000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":2905000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":3917000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3917000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3917000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1034000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1034000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2093000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2093000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":3176000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":3176000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":4272000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":4272000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":372000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":373000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":372000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":373000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":372000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":373000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":372000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"DueFromRelatedParties":{"label":"Due from Related Parties","description":"For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.","units":{"USD":[{"end":"2012-12-31","val":4100000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":2200000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2200000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":2300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1900000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1600000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":536000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":513600,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":513600,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":513600,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":513600,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":513600,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":494800,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":480900,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":335100,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":324400,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":324400,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":324400,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":324400,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":300600,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":276600,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":258400,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2009-01-01","end":"2009-12-31","val":0.24,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.81,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-0.8,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.36,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":0.45,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-0.07,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0.24,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.27,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":0.27,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":0.03,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.03,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0.46,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":0.19,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-3.96,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.77,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":0.31,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.13,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-0.44,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.66,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.72,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.72,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-0.87,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0.84,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":0.82,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0.34,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":-0.34,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.03,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.16,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0.13,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.01,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":-0.17,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-0.05,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-0.05,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.13,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-0.13,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":-0.09,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-0.09,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-0.04,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-0.04,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1.79,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1.79,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-0.1,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-0.1,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-0.19,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-0.19,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-0.09,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-0.09,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-0.16,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-0.16,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.02,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0.02,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-0.38,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.09,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.3,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.22,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.48,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.18,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EarningsPerShareDiluted":{"label":"Earnings Per Share, Diluted","description":"The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2009-01-01","end":"2009-12-31","val":0.24,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.81,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-0.8,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.36,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":0.45,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-0.07,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0.24,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.27,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":0.27,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":0.03,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.03,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0.46,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":0.19,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-3.96,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.77,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":0.31,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.13,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-0.44,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.66,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.72,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.72,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-0.87,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0.84,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":0.82,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0.34,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1.66,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":-0.34,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1.43,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.03,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.16,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0.13,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.01,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":-0.17,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-0.29,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-0.05,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-0.05,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.13,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-0.13,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":-0.09,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-0.09,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-0.04,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-0.04,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1.71,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1.71,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-0.1,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-0.1,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-0.19,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-0.19,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-0.09,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-0.09,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-0.16,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-0.16,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.02,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0.02,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-0.38,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.09,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.3,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.22,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.48,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.18,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateContinuingOperations":{"label":"Effective Income Tax Rate Reconciliation, Percent","description":"Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":-0.7002,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-0.0907,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.0907,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0211,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0.2426,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0211,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":-5.6118,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-5.6118,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0.3054,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1199.19,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1199.19,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":3.32,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":3.32,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1.94,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1.94,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.78,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":775.16,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2.9684,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.1024,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.18,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.2,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.21,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.27,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent","description":"Percentage of domestic federal statutory tax rate applicable to pretax income (loss).","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-0.35,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-0.35,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-0.35,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.35,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.34,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.34,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.34,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0.3398,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.3398,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0.34,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0.34,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0.34,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0.34,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0.34,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.34,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":339.9,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0.3499,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.21,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.21,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.21,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.21,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.21,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":-1.0616,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.4456,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.4456,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-0.336,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-0.336,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-0.336,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.6215,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0.6215,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.6215,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-0.0282,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-0.0282,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-0.0282,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":-6.0825,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-6.0825,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":638.76,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":638.76,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1.6,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1.6,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1.12,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1.12,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.5,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":498.94,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0.6845,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.03,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.07,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.","units":{"pure":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0879,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0596,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.0596,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":1.7579,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.","units":{"pure":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0879,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0104,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.0104,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.0098,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":-0.0031,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.0149,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.0149,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0.0029,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.0029,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.0029,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.0066,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0.0066,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.0066,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0068,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.0068,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.0111,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to amortization.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":-0.0065,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.0388,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.0388,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0.0169,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.0169,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.0169,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.0324,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0.0324,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.0324,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0559,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.0559,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Life Insurance, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to life insurance expense.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.0275,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.0906,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent":{"label":"Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent","description":"Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":-0.0017,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-0.0754,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.0754,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-0.0187,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-0.0187,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-0.0187,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0187,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0187,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0187,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-0.0992,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0.0669,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-0.0568,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-614.89,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":32.1,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1.41,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-0.05,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-0.56,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0.01,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":40.5,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0.1183,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.0281,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.01,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.01,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.01,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.01,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense.","units":{"pure":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0879,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-0.2325,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-0.2325,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.0722,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-0.038,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-0.038,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.038,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0423,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.0423,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.0423,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0.1535,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.1535,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-0.2222,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":97.19,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":97.19,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0.17,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0.17,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0.13,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0.13,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":36.6,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0.0864,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.0323,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.04,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0.04,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"EffectiveIncomeTaxRateReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"pure":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.0879,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-0.0879,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.0879,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.2215,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.2215,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.2215,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"EmployeeStockOwnershipPlanESOPCashContributionsToESOP":{"label":"Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP","description":"This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-11-01","end":"2017-11-30","val":764000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2017-01-01","end":"2017-12-31","val":1200000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"EmployeeStockOwnershipPlanESOPCompensationExpense":{"label":"Employee Stock Ownership Plan (ESOP), Compensation Expense","description":"The amount of plan compensation cost recognized during the period.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":140000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":287000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":287000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"EmployeeStockOwnershipPlanESOPDeferredSharesFairValue":{"label":"Employee Stock Ownership Plan (ESOP), Deferred Shares, Fair Value","description":"Fair value of unearned shares held by the employee stock ownership plan (ESOP).","units":{"USD":[{"end":"2010-12-31","val":-6132000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":-6132000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":-6132000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":-10757000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-6759000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":-8245000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":-8245000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":-8245000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":-8084000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-8162000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":-6733000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-6059000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":-4679000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-3366000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-3366000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-3366000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":-3366000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":-2019000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"EmployeeStockOwnershipPlanESOPFairValueOfSharesSubjectToRepurchaseObligation":{"label":"Employee Stock Ownership Plan (ESOP), Fair Value of Shares Subject to Repurchase Obligation","description":"Fair value of the shares allocated that are subject to a repurchase obligation.","units":{"USD":[{"end":"2012-12-31","val":6100000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3400000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3400000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":2000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2700000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2700000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3200000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":3200000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":6000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"EmployeeStockOwnershipPlanESOPSharesInESOP":{"label":"Employee Stock Ownership Plan (ESOP), Shares in ESOP","description":"Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.","units":{"shares":[{"end":"2010-12-31","val":628914,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":628914,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":628914,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":651914,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":643675,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":628914,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":646675,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":646675,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":646675,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":658257,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":673257,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":673066,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":673066,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":672958,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":672958,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":672623,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":672623,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":672623,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":672623,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":672623,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":672654,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":672654,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":672654,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":671962,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":671962,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":671962,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":671962,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":671962,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":671962,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":671578,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":671578,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":831645,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":831645,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":831645,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":831645,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":831645,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":739482,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":723127,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ExcessTaxBenefitFromShareBasedCompensationFinancingActivities":{"label":"Excess Tax Benefit from Share-based Compensation, Financing Activities","description":"Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":10000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"ExcessTaxBenefitFromShareBasedCompensationOperatingActivities":{"label":"Excess Tax Benefit from Share-based Compensation, Operating Activities","description":"Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":10000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"FairValueAssetsLevel1ToLevel2TransfersAmount":{"label":"Fair Value, Assets, Level 1 to Level 2 Transfers, Amount","description":"Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FairValueAssetsLevel2ToLevel1TransfersAmount":{"label":"Fair Value, Assets, Level 2 to Level 1 Transfers, Amount","description":"Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FairValueLiabilitiesLevel1ToLevel2TransfersAmount":{"label":"Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount","description":"Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FairValueLiabilitiesLevel2ToLevel1TransfersAmount":{"label":"Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount","description":"Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FairValueOfAssetsAcquired":{"label":"Fair Value of Assets Acquired","description":"The fair value of assets acquired in noncash investing or financing activities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-12-31","val":909000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":122000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":186000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":186000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":330000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":330000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":330000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":42000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":42000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":42000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":16000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":16000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":16000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"FederalDepositInsuranceCorporationPremiumExpense":{"label":"Federal Deposit Insurance Corporation Premium Expense","description":"Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3285000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1832000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":934000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2470000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":638000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":3265000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":761000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1509000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1509000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":748000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":748000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1765000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":256000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2262000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2262000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":500000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1003000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":503000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1403000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1403000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2944000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2944000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2944000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3211000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3211000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3211000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3087000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3087000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":2250000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell":{"label":"Federal Funds Sold and Securities Purchased under Agreements to Resell","description":"Includes: (1) the amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements (Federal Funds Sold) and (2) the dollar amount outstanding of funds lent in the form of security resale agreements regardless of maturity, if the agreement requires the bank to resell the identical security purchased or a security that meets the definition of substantially the same in the case of a dollar roll. Also include purchases of participations in pools of securities, regardless of maturity (Securities Purchased Under Agreements to Re-sell).","units":{"USD":[{"end":"2010-12-31","val":110000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":110000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":110000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":25389000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":20322000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":11583000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":11583000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":11583000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":13326000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3249000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":9276000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":14874000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":14874000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":22231000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":22231000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":24320000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":24320000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":24320000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":24320000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":24320000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1":{"label":"Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged","description":"Amount of the collateral pledged in support of federal home loan bank advances outstanding.","units":{"USD":[{"end":"2014-12-31","val":115400000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":114900000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":118500000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":118100000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":80000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":102900000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":102000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":65100000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":78100000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":427800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":404700000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":388200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":397200000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FederalHomeLoanBankAdvancesLongTerm":{"label":"Long-term Federal Home Loan Bank Advances","description":"Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.","units":{"USD":[{"end":"2011-12-31","val":22300000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":22300000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":22300000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":22300000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":22300000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":22300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":22300000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":2300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":2300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":2300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":2300000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2300000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2300000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2300000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":2300000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":2300000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":2300000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":2300000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":19200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":15400000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FederalHomeLoanBankStockAndFederalReserveBankStock":{"label":"Federal Home Loan Bank Stock and Federal Reserve Bank Stock","description":"Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.","units":{"USD":[{"end":"2012-12-31","val":3800000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3800000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"FeesAndCommissionsDepositorAccounts":{"label":"Fees and Commissions, Depositor Accounts (Deprecated 2018-01-31)","description":"Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1718000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":841000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":433000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1213000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":372000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1638000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":383000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":812000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":812000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":429000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":429000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1220000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":408000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1617000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1617000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":381000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":788000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":407000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1583000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1583000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1516000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1516000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1516000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1528000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1528000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1528000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":344000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":683000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":339000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":989000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":306000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1262000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1262000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1262000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":294000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":294000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":566000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":566000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":272000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":272000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":719000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":719000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":153000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":153000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1025000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1025000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":295000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":295000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":582000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":287000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":784000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":202000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":990000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":254000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"FeesAndCommissionsFiduciaryAndTrustActivities":{"label":"Fees and Commissions, Fiduciary and Trust Activities (Deprecated 2018-01-31)","description":"Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans and (2) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1463000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":811000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":456000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1253000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":442000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1722000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":460000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":961000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":961000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":501000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":501000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1450000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":489000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1903000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1903000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":497000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1020000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":523000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":2057000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2057000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2359000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2359000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2359000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2564000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2564000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2564000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":662000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1348000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":686000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1980000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":632000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2604000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2604000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2604000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":632000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":632000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1246000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1246000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":614000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":614000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1900000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":654000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":654000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2260000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2260000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":651000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":651000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1310000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":659000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1953000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":643000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2581000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":797000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"FeesAndCommissionsMortgageBanking":{"label":"Fees and Commissions, Mortgage Banking (Deprecated 2018-01-31)","description":"The noninterest income derived from mortgage banking activities (fees and commissions), excluding fees earned from servicing third-party assets.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2519000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1300000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":654000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1959000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":659000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2630000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":667000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1332000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1332000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":665000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":665000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1982000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":650000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2637000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2637000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":646000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1291000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":645000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":2591000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2591000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2563000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2563000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2563000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":588000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1171000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":583000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1740000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":569000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2298000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2298000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2298000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":550000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":550000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1090000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1090000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":540000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":540000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1546000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1546000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":456000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":456000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2056000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2056000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":486000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":486000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":948000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":462000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1394000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":446000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1829000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"FeesAndCommissionsMortgageBankingAndServicing":{"label":"Fees and Commissions, Mortgage Banking and Servicing","description":"Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans.","units":{"USD":[{"start":"2017-01-01","end":"2017-06-30","val":948000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-04-01","end":"2017-06-30","val":462000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1394000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":446000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":2000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"FeesAndCommissionsOther":{"label":"Fees and Commissions, Other (Deprecated 2018-01-31)","description":"Amount of fee and commission revenue classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2699000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1470000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":804000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2229000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":759000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2998000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":813000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1711000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1601000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":898000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":849000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2433000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":832000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":3451000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3256000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":832000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1755000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":923000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":3601000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3601000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3650000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3650000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3650000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3975000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3975000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1806000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":905000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1998000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1093000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1685000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":523000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3979000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2107000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2107000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":855000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":265000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":556000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1748000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":291000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":893000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1240000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1289000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":684000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":733000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1705000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2279000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":288000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":560000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1134000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":574000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1732000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":598000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2224000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":303000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"FinancialInstrumentsOwnedAndPledgedAsCollateralAmountEligibleToBeRepledgedByCounterparty":{"label":"Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty","description":"Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions where counterparty has the right to re-pledge such.","units":{"USD":[{"end":"2011-12-31","val":27700000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":33100000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"FinancialLiabilitiesFairValueDisclosure":{"label":"Financial Liabilities Fair Value Disclosure","description":"Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.","units":{"USD":[{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"FinancingReceivableAllowanceForCreditLosses":{"label":"Financing Receivable, Allowance for Credit Loss","description":"Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.","units":{"USD":[{"end":"2010-12-31","val":30316000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":28722000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2011-03-31","val":28384000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q1I"},{"end":"2011-06-30","val":27543000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2I"},{"end":"2011-12-31","val":34873000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":34873000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2011-12-31","val":27909000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2012-03-31","val":27262000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":25071000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":35633000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2012Q4I"},{"end":"2012-12-31","val":35633000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2012-12-31","val":35633000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":28358000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2013-12-31","val":28358000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":28358000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":28358000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2013Q4I"},{"end":"2014-12-31","val":24783000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":24783000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":24783000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":24783000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2014Q4I"},{"end":"2014-12-31","val":24783000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2014-12-31","val":24783000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":24783000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":22339000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-03-31","val":22339000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q1I"},{"end":"2015-06-30","val":23280000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q2I"},{"end":"2015-06-30","val":23280000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-09-30","val":18542000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":17392000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":17392000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":17305000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":17305000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q1I"},{"end":"2016-03-31","val":17305000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-03-31","val":17305000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":17592000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":17592000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-06-30","val":17592000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-06-30","val":17592000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":17801000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":17801000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2016Q4I"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":14187000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q1I"},{"end":"2017-03-31","val":14187000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-03-31","val":14187000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-03-31","val":14187000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":13167000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q2I"},{"end":"2017-06-30","val":13167000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-06-30","val":13167000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-06-30","val":13167000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-09-30","val":13200000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-09-30","val":13200000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":11238000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q1I"},{"end":"2018-03-31","val":11238000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2018-06-30","val":10444000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q2I"},{"end":"2018-06-30","val":10444000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-09-30","val":9528000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment":{"label":"Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment","description":"The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.","units":{"USD":[{"end":"2011-12-31","val":26730000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":22574000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":28393000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":22470000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":22470000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":16822000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":16822000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":13176000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":13176000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":13176000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":13176000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":13176000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":13498000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":13031000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":13484000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":11342000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":11342000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":11342000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":11342000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":11342000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":11313000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10581000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10495000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":8651000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":8651000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":8651000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":8651000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":8675000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":8361000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7337000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1":{"label":"Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment","description":"Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.","units":{"USD":[{"end":"2011-12-31","val":1179000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":2497000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":7240000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":5888000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5888000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":7961000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":7961000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":4216000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":4216000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":3807000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4561000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4317000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":2874000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2586000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2705000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":2563000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2083000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2191000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableAllowanceForCreditLossesRecovery":{"label":"Financing Receivable, Allowance for Credit Loss, Recovery","description":"Amount of increase in allowance for credit loss on financing receivable from recovery.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":408000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":174000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":2305000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":609000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":445000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":4971000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4971000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1896000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1896000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1896000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2837000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2837000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2837000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":320000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2048000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1727000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2954000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":906000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3268000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3268000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3268000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":610000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":610000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1134000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1134000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":523000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":523000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1867000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1867000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":733000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":733000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":4138000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":4138000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":388000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":388000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":642000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":642000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":254000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":254000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2948000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2948000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2306000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2306000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":3577000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":205000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":376000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":171000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":547000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":171000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"FinancingReceivableAllowanceForCreditLossesWriteOffs":{"label":"Financing Receivable, Allowance for Credit Loss, Writeoff","description":"Amount of writeoff of financing receivable, charged against allowance for credit loss.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":-5166000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-3144000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-28309000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-15321000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-12391000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":31417000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-31417000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":9171000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":9171000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-9171000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":8412000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":8412000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":8412000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2764000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3551000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":786000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":9195000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":5644000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":11159000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":11159000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":11159000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":697000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":697000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":934000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":934000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":236000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":236000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1458000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1458000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":524000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":524000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":8978000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":8978000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":583000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":583000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":857000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":857000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":274000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":274000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2880000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2880000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2023000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2023000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2906000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2990000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":3255000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":265000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":3342000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":87000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"FinancingReceivableCollectivelyEvaluatedForImpairment":{"label":"Financing Receivable, Collectively Evaluated for Impairment","description":"The balance of financing receivables that were collectively evaluated for impairment.","units":{"USD":[{"end":"2011-12-31","val":1145379000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1148980000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":1070294000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":926070000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":926070000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":803369000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":803369000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":759848000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":759848000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":759848000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":759848000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":759848000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":749540000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":739002000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":730142000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":733026000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":733026000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":733026000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":733026000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":733026000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":729762000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":702575000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":685380000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":649866000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":649866000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":649866000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":649866000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":660428000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":674655000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":668898000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableIndividuallyEvaluatedForImpairment":{"label":"Financing Receivable, Individually Evaluated for Impairment","description":"The balance of financing receivables that were individually evaluated for impairment.","units":{"USD":[{"end":"2011-12-31","val":73191000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":53015000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":126260000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":132987000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":132987000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":108829000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":108829000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":81423000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":81423000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":75046000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":70380000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":70423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":50248000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":48699000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":50617000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":45731000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":40044000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":37097000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableModificationsNumberOfContracts2":{"label":"Financing Receivable, Modifications, Number of Contracts","description":"Number of financing receivables that have been modified by troubled debt restructurings.","units":{"Contract":[{"start":"2012-01-01","end":"2012-12-31","val":84,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":84,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":54,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":54,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":54,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":17,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":17,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":17,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":2,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":7,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":7,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-06-30","val":1,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":3,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":5,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":5,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":4,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":4,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":7,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":7,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":7,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":7,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":3,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":7,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"FinancingReceivableModificationsPostModificationRecordedInvestment2":{"label":"Financing Receivable, Troubled Debt Restructuring, Postmodification","description":"Amount, after troubled debt restructuring, of modified financing receivable.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":42345000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":42345000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":20202000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":20202000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":20202000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2450000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2450000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2450000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":45000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":43000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":45000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":45000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":43000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":43000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":141000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":141000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":10000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":10000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":227000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":227000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":217000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":217000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":332000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":332000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":105000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":105000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":332000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2527000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2928000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":401000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2928000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"FinancingReceivableModificationsPreModificationRecordedInvestment2":{"label":"Financing Receivable, Troubled Debt Restructuring, Premodification","description":"Amount, before troubled debt restructuring, of financing receivable to be modified.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":45637000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":45637000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":20987000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":20987000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":20987000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2613000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2613000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2613000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":45000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":43000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":45000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":995000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":45000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":43000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":43000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":43000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":141000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":141000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":10000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":10000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":227000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":227000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":217000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":217000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":332000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":332000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":105000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":105000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":332000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2527000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2928000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":401000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2928000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"FinancingReceivableModificationsRecordedInvestment":{"label":"Financing Receivable, Troubled Debt Restructuring","description":"Amount of financing receivable modified as troubled debt restructuring.","units":{"USD":[{"end":"2016-09-30","val":43100000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-12-31","val":43067000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2017-09-30","val":39800000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":38900000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":38900000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":38900000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":38947000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":39900000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":36300000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":31600000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1":{"label":"Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts","description":"Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.","units":{"Contract":[{"start":"2012-01-01","end":"2012-12-31","val":31,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":31,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":20,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":20,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":20,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":3,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":2,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":2,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1":{"label":"Financing Receivable, Troubled Debt Restructuring, Subsequent Default","description":"Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":8260000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":8260000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":12225000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":12225000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":12225000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":168000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":168000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":168000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":574000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":574000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":574000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":831000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":831000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":831000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":807000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":807000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":807000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":807000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":807000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":807000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":62000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":62000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":61000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":61000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":61000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":61000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":61000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":61000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":807000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":61000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":61000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":61000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":25000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":145000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":145000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":145000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"FinancingReceivableRecordedInvestment30To59DaysPastDue":{"label":"Financing Receivable, Recorded Investment, 30 to 59 Days Past Due (Deprecated 2015-01-31)","description":"Financing receivables that are less than 60 days past due but more than 29 days past due.","units":{"USD":[{"end":"2011-12-31","val":2673000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":3623000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":4364000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":11469000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":11469000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":7520000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"FinancingReceivableRecordedInvestment60To89DaysPastDue":{"label":"Financing Receivable, Recorded Investment, 60 to 89 Days Past Due (Deprecated 2015-01-31)","description":"Financing receivables that are less than 90 days past due but more than 59 days past due.","units":{"USD":[{"end":"2011-12-31","val":5749000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":2041000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":2746000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10722000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":10722000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":591000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing":{"label":"Financing Receivable, 90 Days or More Past Due, Still Accruing","description":"Amount of financing receivable 90 days or more past due and still accruing.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":32000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":32000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":361000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":361000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2364000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":21000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":261000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":394000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableRecordedInvestmentCurrent":{"label":"Financing Receivable, Not Past Due","description":"Amount of financing receivable not past due.","units":{"USD":[{"end":"2011-12-31","val":1157741000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1163539000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":1165876000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1009624000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1009624000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":881776000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":881776000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":816065000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":816065000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":816065000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":816065000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":816065000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":798122000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":787578000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":780021000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":763793000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":763793000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":763793000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":763793000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":763793000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":769134000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":740133000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":724367000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":683727000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":683727000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":683727000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":683727000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":695456000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":707734000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":700929000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue":{"label":"Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due (Deprecated 2015-01-31)","description":"Financing receivables that are equal to or greater than 90 days past due.","units":{"USD":[{"end":"2011-12-31","val":52407000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":32792000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":23568000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":27242000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":27242000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":22311000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"FinancingReceivableRecordedInvestmentNonaccrualStatus":{"label":"Financing Receivable, Nonaccrual","description":"Amount of financing receivable on nonaccrual status.","units":{"USD":[{"end":"2011-12-31","val":59469000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":46151000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":45631000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":52086000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":52086000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":47856000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":47856000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":30325000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":30325000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":30325000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":30325000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":30325000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":29374000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":24427000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":26946000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":21478000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":21478000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":21478000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":21478000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":21478000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":16715000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":13028000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":15731000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":17340000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":17340000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":17340000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":17340000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":12625000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10392000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":8710000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivableRecordedInvestmentPastDue":{"label":"Financing Receivable, Past Due","description":"Amount of financing receivable past due.","units":{"USD":[{"end":"2011-12-31","val":60829000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":38456000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":30678000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":49433000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":49433000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":30422000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":30422000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":25206000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":25206000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":25206000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":25206000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":25206000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":26464000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":21804000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":20544000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":23019000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":23019000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":23019000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":23019000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":23019000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":10876000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":11141000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11630000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":17280000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":17280000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":17280000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":17280000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":10703000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":6965000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5066000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown":{"label":"Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down","description":"Reflects the amount of the write-down related to a troubled debt restructuring.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":2800000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2800000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":626000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":626000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":626000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2750000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2750000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1480000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":1800000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":3900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":2100000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2800000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":36800,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":36800,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":146700,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-04-01","end":"2016-06-30","val":109900,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":146700,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":356300,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":356300,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":172800,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":172800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":20000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":19600,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":65000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":65300,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":46000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":45700,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":458000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":457800,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":403000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":402700,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":471400,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":147000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2900,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":100000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2800000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"GainLossOnDispositionOfProperty":{"label":"Gain (Loss) on Disposition of Property (Deprecated 2013-01-31)","description":"The gains (losses) included in results of operations resulting from the sale or disposal of property, plant and equipment, which do not qualify for treatment as discontinued operations. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-3000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":9000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-13000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"GainLossOnSaleOfInvestments":{"label":"Gain (Loss) on Sale of Investments","description":"The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":80000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-1000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":-1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-4000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1248000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"GainLossOnSaleOfProperties":{"label":"Gain (Loss) on Sale of Properties","description":"The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-1128000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1485000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-1053000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-3423000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":-1938000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-3886000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-658000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-2331000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-2331000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":-1673000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-1673000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-2861000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":-530000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-3597000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-3233000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":-960000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1628000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-668000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-4129000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-4129000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-2012000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-2012000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":427000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"}]}},"GainLossOnSaleOfPropertyPlantEquipment":{"label":"Gain (Loss) on Disposition of Property Plant Equipment","description":"Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":4000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":-8000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-8000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-2000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-2000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-2000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-2000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-27000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-27000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-27000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-1000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-1000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-1000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-1000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-1000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":38000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":38000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":37000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":37000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":36000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-4000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-5000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"GainLossOnSaleOfSecuritiesNet":{"label":"Gain (Loss) on Sale of Securities, Net (Deprecated 2018-01-31)","description":"The net gain (loss) realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2543000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":47000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":47000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":109000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":171000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":196000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":196000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":25000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":25000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1057000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":861000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1057000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1057000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1248000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee":{"label":"Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee","description":"Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries or equity method investee.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-56000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-56000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":56000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"}]}},"GainLossOnSalesOfLoansNet":{"label":"Gain (Loss) on Sales of Loans, Net","description":"The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":7766000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1478000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":758000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":3068000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":1590000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":5473000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1280000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1739000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1739000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":459000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":459000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2339000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":600000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":4027000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4027000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1686000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":3622000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":1936000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":8410000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":8410000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":5175000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":5175000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":5175000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2373000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2373000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2373000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":801000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1537000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":736000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2089000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":552000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2629000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2629000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2629000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":573000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":573000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1223000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1223000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":650000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":650000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1853000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1853000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":630000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":630000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1918000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1918000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-394000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"GainsLossesOnSalesOfOtherRealEstate":{"label":"Gains (Losses) on Sales of Other Real Estate","description":"The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-721000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":424000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":1762000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-1994000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":136000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-847000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":847000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1057000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-3622000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1198000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":109000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-165000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":-4129000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-4129000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-980000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-2079000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-2079000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2012000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":263000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":429000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":166000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":507000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":78000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":243000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":427000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":427000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":258000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":258000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":843000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":843000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":585000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":585000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1159000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1159000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":316000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":316000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1810000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1810000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":328000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":328000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":670000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":670000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":342000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":342000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":800000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":800000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":130000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":130000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":846000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":41000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":573000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":532000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":764000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":191000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"HeldToMaturitySecurities":{"label":"Debt Securities, Held-to-maturity","description":"Amount of investment in debt security measured at amortized cost (held-to-maturity).","units":{"USD":[{"end":"2010-12-31","val":11107000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":11107000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":11107000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":10945000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10863000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10779000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":10779000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":10779000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":10695000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10611000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":20494000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":19844000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":19844000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":11775000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":11775000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":8986000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":8986000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":8986000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":8986000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":8986000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8945000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8906000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8866000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":7954000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7917000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7882000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7854000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7854000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":7854000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":7854000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":7824000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7797000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7769000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain":{"label":"Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain","description":"Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).","units":{"USD":[{"end":"2012-12-31","val":1445000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":22000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":22000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":172000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":172000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":2000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":2000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss":{"label":"Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).","units":{"USD":[{"end":"2012-12-31","val":124000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":234000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":234000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":208000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":310000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":241000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":211000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":211000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":211000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":211000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":211000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":342000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":375000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":370000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":512000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":529000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":618000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment":{"label":"Debt Securities, Held-to-maturity, Amortized Cost, before Other-than-temporary Impairment","description":"Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).","units":{"USD":[{"end":"2011-12-31","val":10779000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":10611000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss":{"label":"Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.","units":{"USD":[{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":529000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":618000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31)","description":"This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for those securities which are categorized as held-to-maturity.","units":{"USD":[{"end":"2011-12-31","val":-163000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-132000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss":{"label":"Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.","units":{"USD":[{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":485000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":529000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":618000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLosses":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31)","description":"This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized as held-to-maturity.","units":{"USD":[{"end":"2011-12-31","val":-163000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-132000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue":{"label":"Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.","units":{"USD":[{"end":"2011-12-31","val":1020000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1106000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":905000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":9854000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":9854000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8737000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8596000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8625000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-03-31","val":7612000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7542000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7512000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":7312000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7268000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7151000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss":{"label":"Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss","description":"Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for less than 12 months.","units":{"USD":[{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31)","description":"This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for those securities which are categorized as held-to-maturity.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue":{"label":"Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for less than 12 months.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":84000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8737000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8596000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8625000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue":{"label":"Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for 12 months or longer.","units":{"USD":[{"end":"2011-12-31","val":1020000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1106000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":821000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":9854000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":9854000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-03-31","val":7612000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7542000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7512000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":7312000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7268000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7151000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue":{"label":"Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":974000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":875000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount":{"label":"Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10","description":"Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":875000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue":{"label":"Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount":{"label":"Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five","description":"Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue":{"label":"Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":11294000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":18757000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11947000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":8988000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":8737000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8596000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8625000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":7612000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7542000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7512000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":7312000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7268000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7151000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount":{"label":"Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10","description":"Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":18969000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11775000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":8986000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":8945000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8906000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8866000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8824000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":7954000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7917000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7882000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7854000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":7824000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7797000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7769000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesFairValue":{"label":"Held-to-maturity Securities, Debt Maturities, Fair Value (Deprecated 2013-01-31)","description":"This item represents the total of all debt securities grouped by maturity dates, at fair value, which are categorized as held-to-maturity.","units":{"USD":[{"end":"2012-06-30","val":12268000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue":{"label":"Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount":{"label":"Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One","description":"Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue":{"label":"Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity), without single maturity date and not allocated over maturity grouping.","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount":{"label":"Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost","description":"Amortized cost of investment in debt security measured at amortized cost (held-to-maturity), without single maturity date and not allocated over maturity grouping.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"HeldToMaturitySecuritiesFairValue":{"label":"Debt Securities, Held-to-maturity, Fair Value","description":"Fair value of investment in debt security measured at amortized cost (held-to-maturity).","units":{"USD":[{"end":"2010-12-31","val":10951000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":10951000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":10951000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":11216000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":11861000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":11879000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":11879000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":11879000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":11714000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":12268000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":21815000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":19632000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":19632000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":11947000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":11947000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":8988000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":8988000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":8988000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":8988000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":8988000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8737000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8596000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8625000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":8613000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":7612000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7542000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7512000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":7369000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":7312000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7268000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7151000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"HeldToMaturitySecuritiesUnrecognizedHoldingLoss":{"label":"Held-to-maturity Securities, Unrecognized Holding Loss (Deprecated 2013-01-31)","description":"As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.","units":{"USD":[{"end":"2011-12-31","val":-163000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":-132000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on investments in held-to-maturity securities that have been in a loss position for twelve months or longer.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-115000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":234000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-234000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-03-31","val":342000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":375000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":370000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":485000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":485000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":512000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"HeldtomaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on investments in held-to-maturity securities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-124000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":234000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-234000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":208000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":310000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":241000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-03-31","val":342000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":375000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":370000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":485000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":485000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":512000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss":{"label":"Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss before deducting unrealized gain on investments in held-to-maturity securities that have been in a loss position for less than twelve months.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-9000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":208000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":310000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":241000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":211000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"HeldtomaturitySecuritiesUnrecognizedHoldingGain":{"label":"Held-to-maturity Securities, Unrecognized Holding Gain (Deprecated 2013-01-31)","description":"As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.","units":{"USD":[{"end":"2011-12-31","val":1263000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1789000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ImpairedFinancingReceivableAverageRecordedInvestment":{"label":"Impaired Financing Receivable, Average Recorded Investment","description":"Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":66811000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":67744000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":123053000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":67843000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":62899000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":128820000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":128820000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":135765000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":135765000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":135765000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":120911000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":120911000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":120911000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":104674000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":99919000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":99003000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":89423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":85936000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":95129000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":95129000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":95129000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":75686000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":75686000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":70948000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":70948000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":70565000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":70565000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":71949000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":71949000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":70401000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":70401000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":70211000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":70211000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":52018000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":52018000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":50911000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":50911000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":49473000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":49473000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":50837000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":50837000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":49658000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":49658000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":50898000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":48436000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":45639000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":42887000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":58004000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":38571000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ImpairedFinancingReceivableInterestIncomeCashBasisMethod":{"label":"Impaired Financing Receivable, Interest Income, Cash Basis Method","description":"Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":510000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":417000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":1662000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":273000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":142000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":3910000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3910000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3892000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3892000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3892000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3432000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3432000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3432000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1418000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2753000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1383000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2003000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":674000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3283000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3283000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3283000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1030000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1030000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1172000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1935000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":586000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":967000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1665000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1665000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":558000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":558000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1695000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1695000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":514000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":514000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":862000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":862000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":433000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":433000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1969000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1969000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":663000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":663000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1928000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":417000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":751000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":378000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1284000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":433000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ImpairedFinancingReceivableRecordedInvestment":{"label":"Impaired Financing Receivable, Recorded Investment","description":"Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":73191000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":53015000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":126260000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":132987000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":132987000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":108829000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":108829000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":81423000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":81423000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":81423000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":75046000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":70380000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":70423000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":53786000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":50248000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":48699000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":50617000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":51141000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":45731000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":40044000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":37097000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ImpairedFinancingReceivableRelatedAllowance":{"label":"Impaired Financing Receivable, Related Allowance","description":"Amount of allowance for credit losses related to recorded investment.","units":{"USD":[{"end":"2011-12-31","val":1179000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":2497000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":7240000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":5888000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5888000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":7961000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":7961000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":4216000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":4216000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":4216000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":3807000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4561000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4317000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":3010000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":2874000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2586000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2705000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":5152000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":2563000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2083000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2191000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ImpairedFinancingReceivableUnpaidPrincipalBalance":{"label":"Impaired Financing Receivable, Unpaid Principal Balance","description":"Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":75731000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":62440000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":156604000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":163750000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":163750000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":121769000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":121769000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":90296000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":90296000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":90296000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":90296000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":90296000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":83261000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":77533000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":75949000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":56268000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":56268000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":56268000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":56268000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":56268000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":52533000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":50958000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":53549000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":53485000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":53485000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":53485000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":53485000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":50866000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":45294000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":41020000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment":{"label":"Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment","description":"Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":3039000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":3076000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":376000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":357000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod":{"label":"Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method","description":"Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":10000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":4000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":11000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":4000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment":{"label":"Impaired Financing Receivable, with No Related Allowance, Recorded Investment","description":"Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":112000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":320000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance":{"label":"Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance","description":"Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":112000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":342000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment":{"label":"Impaired Financing Receivable, with Related Allowance, Average Recorded Investment","description":"Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":1024000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":1233000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":738000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":760000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod":{"label":"Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method","description":"Amount of interest income on financing receivables, for which there is a related allowance for credit losses, recognized on a cash-basis method of accounting that the financing receivables were impaired.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":11000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":6000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":8000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":7000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment":{"label":"Impaired Financing Receivable, with Related Allowance, Recorded Investment","description":"Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":713000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":804000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance":{"label":"Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance","description":"Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.","units":{"USD":[{"end":"2011-12-31","val":712000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":806000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ImpairmentOfRealEstate":{"label":"Impairment of Real Estate","description":"The charge against earnings in the period to reduce the carrying amount of real property to fair value.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":283000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1079000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":1692000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":1931000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":526000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1546000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1546000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1868000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":2109000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":870000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1442000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":4939000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-6046000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-7131000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-649000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":5397000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1943000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":3124000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":4340000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":4340000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":1216000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1216000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":7736000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":3396000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-13769000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":10087000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":4077000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":192000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-3885000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":5263000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2758000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-2758000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-5592000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":5932000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":5845000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":2759000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":-1673000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":-4822000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-4822000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-4822000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1139000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2951000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1812000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2825000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":-126000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":731000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":731000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1216000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1216000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":485000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":485000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2007000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2007000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":791000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":791000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2437000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2437000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-700000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-1012000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-1000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-1000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":699000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":699000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1802000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1802000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1803000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1803000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2940000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1885000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":7266000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":5381000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":12085000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":4819000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxExaminationPenaltiesExpense":{"label":"Income Tax Examination, Penalties Expense","description":"The amount of estimated penalties recognized in the period arising from income tax examinations.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":1500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1500000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"}]}},"IncomeTaxExpenseBenefit":{"label":"Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1763000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1888000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-2537000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":59000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":1947000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":260000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1038000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1485000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1485000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":447000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":447000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":3165000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1680000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":9639000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2998000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1562000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-45000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-1607000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":477000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-250000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-250000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-507000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":1170000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1170000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1170000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-13676000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-13676000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-214000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-526000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2089000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2089000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":2303000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":2303000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3487000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":3487000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1398000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1398000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":8730000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":193000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1276000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1083000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2579000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1303000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxExpenseBenefitIntraperiodTaxAllocation":{"label":"Income Tax Expense (Benefit), Intraperiod Tax Allocation","description":"Amount of income tax expense (benefit) for continuing operations, discontinued operations, other comprehensive income, and items charged (credited) directly to shareholders' equity.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-250000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"IncomeTaxesPaid":{"label":"Income Taxes Paid","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-4797000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":72000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":510000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-441000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-238000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-355000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":355000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":810000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-3378000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-3378000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1808000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":1808000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1808000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":21897000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"IncomeTaxReceivable":{"label":"Income Taxes Receivable","description":"Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.","units":{"USD":[{"end":"2012-12-31","val":11.5,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":11500000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":11.5,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":10400000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":14617000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1229000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1229000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-4320000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-4320000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-4320000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2997000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2997000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2997000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-54000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-54000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-54000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":-14823000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-14823000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1113000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1113000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1113000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1113000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2013000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2013000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":900000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":900000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2013000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":347000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":347000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":114000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":114000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":5170000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"IncomeTaxReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":20000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":20000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":24000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount","description":"The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-4819000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-965000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-965000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":4502000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":4502000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":4502000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1688000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-1688000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1688000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":651000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":651000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":651000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":828000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":828000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-238000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":237000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":237000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":613000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":613000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1029000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":396000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1525000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1130000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2538000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1013000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":42000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":41000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":41000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":37000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":37000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":37000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":32000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":32000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":32000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":13000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":13000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":27000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"IncomeTaxReconciliationNondeductibleExpenseAmortization":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible amortization.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":89000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":107000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":107000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":217000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":217000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":217000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":156000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":156000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":156000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":107000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":107000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"IncomeTaxReconciliationNondeductibleExpenseLifeInsurance":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Life Insurance, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible life insurance expense.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-67000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"IncomeTaxReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":23000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-208000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-208000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-241000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-241000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-241000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-90000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-90000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-90000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-190000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":163000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-40000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1071000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":56000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":979000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-36000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":998000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-17000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":-73000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":-73000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":348000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-53000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-108000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-55000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-151000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-43000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-445000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-445000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":176000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"IncomeTaxReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-183000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-183000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-183000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":81000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":81000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":81000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":374000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":374000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":155000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":169000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":169000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":116000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":116000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":235000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":235000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":66000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":66000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":254000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":61000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":280000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":219000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":476000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":196000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IncomeTaxReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":127000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-06-30","val":203000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":424000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":424000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":424000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":424000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":424000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":424000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"IncreaseDecreaseInDeferredIncomeTaxes":{"label":"Increase (Decrease) in Deferred Income Taxes","description":"The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3150000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":608000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-150000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":118000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-12-31","val":2515000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":548000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1316000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"IncreaseDecreaseInDemandDeposits":{"label":"Increase (Decrease) in Demand Deposits","description":"The net cash inflow or outflow in the total of all demand deposits, including checking and negotiable order of withdrawal (NOW) accounts, classified as cash flows from financing activities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":164445000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":149076000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":149076000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":76706000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"IncreaseDecreaseInDeposits":{"label":"Increase (Decrease) in Deposits","description":"The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":124730000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-99001000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-22801000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-28622000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-4908000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":47732000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":47732000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-16695000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-31218000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":30166000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":25897000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":27909000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":3281000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":66012000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-65676000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-65676000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-10074000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-65764000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-65764000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-65764000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-18526000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-32383000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-46305000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-56539000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-56539000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-56539000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-10298000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-10298000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-21414000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-21414000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-42781000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-42781000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-66381000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-66381000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-20377000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-20377000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-28955000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-28955000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-37331000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-37331000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-47096000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-9523000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-17043000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-25982000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"IncreaseDecreaseInIncomeTaxesReceivable":{"label":"Increase (Decrease) in Income Taxes Receivable","description":"The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-1170000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1170000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"}]}},"IncreaseDecreaseInInterestPayableNet":{"label":"Increase (Decrease) in Interest Payable, Net","description":"The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-9676000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-9676000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-9676000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-9676000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-9676000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-9676000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-9676000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"IncreaseDecreaseInOtherOperatingAssets":{"label":"Increase (Decrease) in Other Operating Assets","description":"Amount of increase (decrease) in operating assets classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":7624000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-2167000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":238000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-785000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":2075000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-1830000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":4619000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":8712000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-3485000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-7773000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1527000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2359000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":-1763000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1763000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-2375000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-2375000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-2375000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-3493000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-3493000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-3493000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-1501000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-2555000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-10179000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-13560000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-10510000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-13560000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-660000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":98000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":411000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-2323000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-505000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-3891000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-2206000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-2206000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-482000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-483000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-2945000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-2945000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-4703000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-4708000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1220000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1185000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":338000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-731000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"IncreaseDecreaseInOtherOperatingLiabilities":{"label":"Increase (Decrease) in Other Operating Liabilities","description":"Amount of increase (decrease) in operating liabilities classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1183000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1414000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-1139000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-953000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-1534000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-1967000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-1967000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-1615000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-2338000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-2349000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":-334000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-715000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":-258000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-258000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3555000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3555000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3555000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2661000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2661000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2661000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":779000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2079000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":1845000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":1527000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1527000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1527000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1035000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1035000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2821000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2821000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":6076000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":6075000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2929000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2929000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-872000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-872000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-2196000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-2196000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-2158000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-2158000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-447000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1775000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-2362000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-3849000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"IncreaseDecreaseInSavingsDeposits":{"label":"Increase (Decrease) in Savings Deposits","description":"The net cash inflow or outflow in the total of all savings account deposits, which may include passbook, statement savings accounts and money-market deposit accounts (MMDAs), classified as cash flows from financing activities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":335439000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":353656000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":353656000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":432017000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"IncreaseDecreaseInTimeDeposits":{"label":"Increase (Decrease) in Time Deposits","description":"Net cash inflow (outflow) of time deposits.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":92121000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-7008000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-47742000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-81478000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-36985000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-58321000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-58321000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-64519000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-61384000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-3412000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-4529000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"IncreaseDecreaseInTimeDepositsOf100000OrMore":{"label":"Increase (Decrease) in Time Deposits of $100,000 or more","description":"The increase (decrease) in time deposits equal to or greater than $100,000 per account.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":279222000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":67624000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":234319000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":53693000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"IncrementalCommonSharesAttributableToShareBasedPaymentArrangements":{"label":"Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements","description":"Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":13134,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":13134,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2018-01-01","end":"2018-03-31","val":45133,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":169972,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":181634,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":244759,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":255541,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InformationTechnologyAndDataProcessing":{"label":"Information Technology and Data Processing","description":"The amount of expenses incurred in the period for information technology and data processing products and services.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2854000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1433000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":709000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2119000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":686000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":3164000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":788000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1720000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1720000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":932000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":932000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2615000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":895000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":3429000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3429000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":930000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1749000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":819000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":3389000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3389000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3202000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3202000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3202000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3155000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3155000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3155000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":687000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1411000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":724000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2169000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":758000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2979000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2979000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2979000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":660000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":660000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1360000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1360000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":700000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":700000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2232000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2232000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":872000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":872000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":3818000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3818000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1374000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1374000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2425000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2425000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1051000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1051000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3557000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":3557000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1132000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1132000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":5114000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1029000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1942000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":913000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2894000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":952000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"IntangibleAssetsNetExcludingGoodwill":{"label":"Intangible Assets, Net (Excluding Goodwill)","description":"Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.","units":{"USD":[{"end":"2010-12-31","val":546000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q4I"},{"end":"2010-12-31","val":546000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":220000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":57000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"}]}},"InterestAndDividendIncomeOperating":{"label":"Interest and Dividend Income, Operating","description":"Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":77768000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":36137000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":17809000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":55227000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":19090000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-792000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":72497000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2011-01-01","end":"2011-03-31","val":16847000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":33901000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":33656000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":17054000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":17039000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":50455000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":16799000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":66044000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":67381000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":16980000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":33702000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":16722000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":16582000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":67274000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":67274000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":17713000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":16566000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":15809000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":14873000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":60695000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":60695000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":60695000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":13447000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":52150000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":52150000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":52150000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":12306000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":24261000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":11955000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":36075000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":11814000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":47604000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":47604000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":47604000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":12126000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":12126000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":24299000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":24299000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":12173000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":12173000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":36148000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":36148000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":11849000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":11849000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":47848000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":47848000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":11386000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":11386000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":22953000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":22946000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":11563000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":11560000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":34415000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":34408000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":11462000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":11462000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":46116000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":10812000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":22099000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":11284000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":33384000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":11285000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestAndFeeIncomeLoansAndLeases":{"label":"Interest and Fee Income, Loans and Leases","description":"The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":73297000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":33910000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":16638000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":51873000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":17963000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":68512000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":15737000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":31663000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":31773000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":15927000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":15976000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":47561000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":15788000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":61623000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":63481000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":16176000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":32158000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":15982000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":64446000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":64446000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":58002000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":58002000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":58002000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":48766000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":48766000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":48766000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":11108000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21980000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":10872000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":32334000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":10354000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":42364000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":42364000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":42364000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":10130000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":10130000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":20119000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":20119000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":9989000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":9989000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":29532000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":29532000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":9413000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":9413000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":38915000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":38915000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":9307000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":9307000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":18597000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":18597000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":9290000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":9290000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":27613000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":27613000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":9016000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":9016000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":36761000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":8079000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":16738000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":8659000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":25272000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":8534000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestAndFeeIncomeLoansAndLeasesHeldForSale":{"label":"Interest and Fee Income, Loans and Leases Held-for-sale","description":"The amount of interest and fee income earned from loans held-for-sale, including mortgage loans, and interest earned from direct financing and sales-type leases held-for-sale.","units":{"USD":[{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":42000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":42000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":167000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":125000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestBearingDepositLiabilities":{"label":"Interest-bearing Deposit Liabilities","description":"The aggregate of all domestic and foreign interest-bearing deposit liabilities.","units":{"USD":[{"end":"2010-12-31","val":1248454000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1248454000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1248454000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1218349000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1138376000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1174458000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1174458000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1174458000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1190914000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1195811000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":1228694000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1233989000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1233989000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1138089000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1138089000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1101070000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1101070000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1178091000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1178091000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1101070000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1124316000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1095628000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1230681000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1033115000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1033115000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1033115000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1033115000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1186788000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1043374000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1005244000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":983438000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":965670000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":965670000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":965670000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":965670000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":980960000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":946952000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":921758000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"InterestBearingDepositsInBanks":{"label":"Interest-bearing Deposits in Banks and Other Financial Institutions","description":"For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.","units":{"USD":[{"end":"2010-12-31","val":89316000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":89316000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":89316000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":95159000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":36868000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":48610000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":48610000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":48610000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":75649000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":86686000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":132139000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":259525000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":259525000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":207965000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":207965000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":151049000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":151049000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":151049000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":151049000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":151049000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":153363000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":65769000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":137778000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":105798000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":105798000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":105798000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":105798000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":105798000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":33981000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":67669000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":68234000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":22541000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":22541000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":22541000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":22541000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":9517000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3739000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3645000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":23977000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9683000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":4626000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":13996000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":4313000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":17815000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":3397000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":6602000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":6602000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":3205000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":3205000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":9652000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":3050000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":12506000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":12506000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":2698000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5312000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":2614000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":2570000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":10393000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":10393000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":2511000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":2356000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":2236000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":2146000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":8821000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":8821000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":8821000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":2083000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":7356000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":7356000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":7356000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1597000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3069000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1472000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":4486000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1417000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":5876000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":5876000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":5876000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1366000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1366000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2724000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2724000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1358000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1358000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":4059000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":4059000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":1335000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":1335000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":5367000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5367000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1215000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1215000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2291000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2291000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1076000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1076000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3359000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":3359000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1068000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1068000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":4429000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1252000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2151000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":899000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":3069000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":918000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestExpenseBorrowings":{"label":"Interest Expense, Borrowings","description":"Aggregate amount of interest expense on all borrowings.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1299000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1024000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1024000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1024000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1024000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1024000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":995000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":995000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":995000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":176000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":212000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":36000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":248000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":36000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":285000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":285000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":285000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":36000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":36000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":73000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":73000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":37000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":37000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":110000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":110000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":37000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":37000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":146000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":146000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":36000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":36000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":77000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":77000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":41000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":41000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":114000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":114000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":37000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":37000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":150000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":53000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":182000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":129000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":313000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":131000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestExpenseCapitalSecurities":{"label":"Interest Expense, Capital Securities","description":"Interest expense incurred during the reporting period on capital securities issued by the reporting entity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":268000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":134000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":67000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":201000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":67000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":268000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":67000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":134000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":67000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":201000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":67000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":268000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":67000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"}]}},"InterestExpenseDeposits":{"label":"Interest Expense, Deposits","description":"Aggregate amount of interest expense on all deposits.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":19432000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":7568000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":3605000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":10849000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":3281000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":13632000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":2353000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":4553000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":4553000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":2200000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":2200000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":6599000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":2046000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":8571000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":8571000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1871000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":3666000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":1795000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":7105000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":7105000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":5532000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":5532000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":5532000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":3933000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3933000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3933000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":789000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1542000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":753000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2258000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":716000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2939000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2939000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2939000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":623000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":623000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1214000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1214000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":591000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":591000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1770000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1770000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":556000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":556000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2279000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2279000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":459000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":459000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":901000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":901000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":442000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":442000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1333000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1333000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":432000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":432000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1763000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":412000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":831000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":419000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1255000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":424000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestExpenseJuniorSubordinatedDebentures":{"label":"Interest Expense, Junior Subordinated Debentures","description":"Interest expense incurred during the reporting period on junior subordinated debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2780000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1367000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":684000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2061000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":694000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2759000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":723000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1408000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1408000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":685000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":685000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2092000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":684000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2636000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2636000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":571000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1134000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":563000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":2264000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2264000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2265000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2265000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2265000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2428000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":632000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1315000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":683000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1980000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":665000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2652000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2652000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2652000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":707000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":707000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1437000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1437000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":730000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":730000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2179000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2179000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":742000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":742000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2942000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2942000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":720000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":720000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1313000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1313000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":593000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":593000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1912000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1912000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":599000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":599000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2516000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":787000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1138000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":351000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1501000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":363000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestExpenseLesseeAssetsUnderCapitalLease":{"label":"Interest Expense, Lessee, Assets under Capital Lease","description":"The amount, during the lease term, of each minimum [capital] lease payment allocated to interest expense so as to produce a constant periodic rate of interest on the remaining balance of the capital lease obligation.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":134000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":67000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":134000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":67000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"InterestExpenseLongTermDebt":{"label":"Interest Expense, Long-term Debt","description":"Aggregate amount of interest paid or due on all long-term debt.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":762000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":381000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":253000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":634000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":253000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":887000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":214000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":403000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":403000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":189000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":189000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":592000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":189000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":781000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":189000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":378000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":189000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits":{"label":"Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits","description":"The aggregate interest expense incurred on the following for deposits in domestic offices: (1) transaction accounts (NOW, and telephone and preauthorized transfer accounts), (2) money market deposits and (3) savings deposits.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":418653000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":471407000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":471407000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":430708000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"InterestExpenseShortTermBorrowings":{"label":"Interest Expense, Short-term Borrowings","description":"The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":735000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":233000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":17000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":251000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":18000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":269000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":40000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":104000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":104000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":64000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":64000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":168000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":64000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":250000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"InterestIncomeDepositsWithFinancialInstitutions":{"label":"Interest Income, Deposits with Financial Institutions","description":"Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":332000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":180000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":75000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":254000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":74000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":357000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":54000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":134000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":134000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":80000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":80000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":172000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":38000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":214000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":40000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":92000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":52000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"InterestIncomeExpenseAfterProvisionForLoanLoss":{"label":"Interest Income (Expense), after Provision for Loan Loss","description":"Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":27767000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":11096000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":2082000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":25373000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":14277000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":34424000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":12000000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":23720000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":23475000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":11720000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":11705000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":35924000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":12449000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":22977000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":46630000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":12163000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":16516000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":4353000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":12856000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":29675000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":29675000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":3226000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":14210000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":13573000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":12727000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":11364000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":42794000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":42794000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":42794000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":10709000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21192000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":10483000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":31589000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":10397000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":41228000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":41228000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":41228000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":10760000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":10760000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":21575000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":21575000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":10815000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":10815000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":32089000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":32089000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":10514000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":10514000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":40681000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":40681000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":10141000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":10141000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":21632000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":21625000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":11487000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":11484000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":32276000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":32269000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":10644000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":10644000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":42907000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9340000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":20428000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":11085000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":31795000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":11367000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestIncomeExpenseNet":{"label":"Interest Income (Expense), Net","description":"The net amount of operating interest income (expense).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":53791000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":26454000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":13183000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":41231000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":14777000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":54682000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":13450000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":27299000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":27054000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":13849000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":13834000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":40803000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":13749000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":53538000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":54875000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":14282000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":28390000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":14108000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":14012000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":56881000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":56881000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":15202000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":14210000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":13573000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":12727000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":51874000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":11364000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":44794000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":44794000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":44794000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":10709000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21192000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":10483000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":31589000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":10397000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":41728000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":41728000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":41728000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":10760000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":10760000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":21575000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":21575000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":10815000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":10815000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":32089000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":32089000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":10514000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":10514000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":42481000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":42481000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":10171000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":10171000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":20662000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":20655000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":10487000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":10484000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":31056000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":31049000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":10394000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":10394000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":41687000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9560000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":19948000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":10385000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":30315000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":10367000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestIncomeFederalFundsSold":{"label":"Interest Income, Federal Funds Sold","description":"Interest income on federal funds sold. Federal funds sold represent the excess federal funds held by one commercial bank which it lends to another commercial bank, usually at an agreed-upon (federal funds) rate of interest. Such loans generally are of short-duration (overnight).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":7000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":7000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":55000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":48000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":103000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"InterestIncomeOther":{"label":"Interest Income, Other","description":"Amount of interest income earned from interest bearing assets classified as other.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":655000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":851000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":851000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":214000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":429000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":215000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":792000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":363000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1109000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1109000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1109000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":248000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":248000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":426000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":426000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":178000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":178000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":524000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":524000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":98000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":98000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":697000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":697000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":161000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":161000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":299000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":292000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":134000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":131000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":574000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":567000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":275000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":275000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":740000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":113000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":178000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":62000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":256000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":78000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestIncomeSecuritiesPurchasedUnderAgreementsToResell":{"label":"Interest Income, Securities Purchased under Agreements to Resell","description":"Interest income derived from securities purchased under agreements to resell. The difference in the price at which the institution buys the securities and resells the securities represents interest for the use of the funds by the other party. Most repurchase and sale agreements involve obligations of the federal government or its agencies, but other financial instruments, such as commercial paper, banker's acceptances and negotiable certificates of deposits are sometimes used in such transactions.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":7000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":7000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":457000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":33000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":57000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":24000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":453000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":453000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":655000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":655000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":851000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"InterestIncomeSecuritiesTaxable":{"label":"Interest Income, Securities, Operating, Taxable","description":"Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2999000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1409000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":776000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2156000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":747000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2384000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":718000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1423000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1138000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":704000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":675000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1774000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":636000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2966000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2508000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":515000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":966000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":451000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1742000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1742000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1456000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1456000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1456000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2081000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2081000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2081000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":939000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1762000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":823000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2815000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1053000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3956000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3956000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3956000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1731000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1731000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3606000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":3606000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1875000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1875000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":5769000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":5769000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":2163000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":2163000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":7716000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":7716000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1672000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1672000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":3478000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":3478000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1806000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1806000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":5143000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":5143000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1665000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1665000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":6695000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1582000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":3056000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1474000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":4562000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1506000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestIncomeSecuritiesTaxExempt":{"label":"Interest Income, Securities, Operating, Tax Exempt","description":"Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1056000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":597000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":299000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":882000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":285000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1161000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":281000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":564000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":564000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":283000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":283000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":832000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":268000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":998000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":998000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":164000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":326000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":162000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":633000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":633000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":582000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":582000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":582000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":452000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":452000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":452000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":45000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":90000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":45000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":134000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":44000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":175000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":175000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":175000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":17000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":17000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":148000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":148000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":131000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":131000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":323000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":323000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":175000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":175000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":520000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":520000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":246000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":246000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":579000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":579000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":333000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":333000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1085000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1085000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":506000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":506000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1920000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1038000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2085000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1047000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":3127000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1042000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"InterestPaid":{"label":"Interest Paid, Including Capitalized Interest, Operating and Investing Activities","description":"Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-24760000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":10077000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":13797000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-17980000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-5574000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-9002000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":9002000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":12345000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-15238000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-15238000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":-3156000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-5539000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":10094000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-10094000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":9840000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":9840000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-9840000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":5306000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":5306000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":5306000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":822000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1532000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":869000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":3416000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3416000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":699000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":699000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1377000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1987000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2619000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":10928000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"InterestPaidNet":{"label":"Interest Paid, Excluding Capitalized Interest, Operating Activities","description":"Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":3416000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":1377000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":1987000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":2619000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":10928000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":11762000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":11762000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":13118000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":13118000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":13920000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1601000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2503000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":3412000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"InterestPayableCurrentAndNoncurrent":{"label":"Interest Payable","description":"Amount of interest payable on debt, including, but not limited to, trade payables.","units":{"USD":[{"end":"2010-12-31","val":4873000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":4873000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":4873000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":2473000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2180000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2141000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2141000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":2141000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1683000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1914000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2018-06-30","val":111000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":109000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"InterestReceivable":{"label":"Interest Receivable","description":"Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.","units":{"USD":[{"end":"2010-12-31","val":6736000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6736000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":6736000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":6292000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":5426000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5889000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":5889000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":5889000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":5402000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5221000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5769000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5524000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5779000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5599000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5416000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5244000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures":{"label":"Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures","description":"Amount of investment in equity method investee and investment in and advance to affiliate.","units":{"USD":[{"end":"2011-12-31","val":1116000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1116000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2012-03-31","val":1116000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1116000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"InvestmentTaxCredit":{"label":"Investment Tax Credit","description":"The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":1900000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2013-01-01","end":"2013-12-31","val":1900000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1900000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust":{"label":"Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust","description":"Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.","units":{"USD":[{"end":"2010-12-31","val":37116000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":37116000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":37116000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":37116000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":37116000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":37116000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":37116000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":37116000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":37116000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":37116000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":37116000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-06-30","val":37100000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2013-06-30","val":37116000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-06-30","val":37100000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2013Q2I"},{"end":"2013-06-30","val":37100000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2013-06-30","val":37100000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2013-06-30","val":37100000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2013-12-31","val":37116000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":37116000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":37116000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":37116000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":37116000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":37116000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":37116000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":37116000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":37116000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":37116000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":37116000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":37116000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":36927000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":36927000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":36927000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":36927000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":37116000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":36931000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":36934000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":36937000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":36941000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":36941000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":36941000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":36941000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":26764000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":26765000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":26766000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LaborAndRelatedExpense":{"label":"Labor and Related Expense","description":"Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":20055000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":10169000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":5091000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":15321000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":5152000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":20922000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":5501000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":10958000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":10958000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":5457000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":5457000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":16594000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":5636000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":22049000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":22049000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":6207000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":11994000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":5787000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":23930000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":23930000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":24415000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":24415000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":24415000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":25269000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":25269000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":25269000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6190000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":12428000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":6238000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":18838000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":6410000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":24482000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":24482000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":24482000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":6366000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":6366000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":12924000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":12924000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":6558000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":6558000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":19460000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":19460000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":6536000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":6536000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":25630000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":25630000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":6037000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":6037000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":12245000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":12245000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":6208000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":6208000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":17913000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":17913000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":5668000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":5668000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":23579000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":5551000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10876000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":5325000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":16286000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":5410000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"LegalFees":{"label":"Legal Fees","description":"The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.","units":{"USD":[{"end":"2017-07-26","val":100000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q2I"}]}},"LettersOfCreditOutstandingAmount":{"label":"Letters of Credit Outstanding, Amount","description":"The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.","units":{"USD":[{"end":"2012-12-31","val":106300000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":66000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":66000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":22000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":22000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"}]}},"Liabilities":{"label":"Liabilities","description":"Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.","units":{"USD":[{"end":"2010-12-31","val":1441987000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1441987000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1441987000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1427298000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1357670000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1397255000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1397255000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1397255000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1418441000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1419922000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1440516000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1462995000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1421170000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1436316000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1407013000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1457944000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1457944000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1363184000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1363184000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1319995000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1319995000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1319995000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1319995000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1319995000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1354078000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1335247000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1328478000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1288138000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1288138000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1288138000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1288138000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1288327000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1256397000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1211088000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1222122000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1181987000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1181987000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":1181987000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":1181987000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":1181572000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1176342000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1145822000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LiabilitiesAndStockholdersEquity":{"label":"Liabilities and Equity","description":"Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.","units":{"USD":[{"end":"2010-12-31","val":1565442000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1565442000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1565442000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1552873000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1482833000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1523469000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1546584000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1544459000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1528942000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1544912000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1511187000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1531000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1507342000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1550020000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1550020000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1446206000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1446206000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1398985000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1398985000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1398985000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1436360000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1420370000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1412210000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1425437000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1425626000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1356076000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1310866000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1322486000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":1287533000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":1283067000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1281846000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1253591000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LiabilityForUncertainTaxPositionsNoncurrent":{"label":"Liability for Uncertainty in Income Taxes, Noncurrent","description":"Amount recognized for uncertainty in income taxes classified as noncurrent.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"LineOfCreditFacilityMaximumBorrowingCapacity":{"label":"Line of Credit Facility, Maximum Borrowing Capacity","description":"Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.","units":{"USD":[{"end":"2013-12-31","val":150000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"LineOfCreditFacilityRemainingBorrowingCapacity":{"label":"Line of Credit Facility, Remaining Borrowing Capacity","description":"Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).","units":{"USD":[{"end":"2014-12-31","val":71100000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":112600000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-03-31","val":116200000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":115800000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":77700000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":100600000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":99700000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":62800000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":75800000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":425500000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":402400000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":369000000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":381800000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansAndLeasesReceivableAllowance":{"label":"Loans and Leases Receivable, Allowance","description":"Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.","units":{"USD":[{"end":"2010-12-31","val":28722000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":28722000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":28722000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":27543000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":27177000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":27909000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":27909000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":27909000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":27262000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":25071000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":35419000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":35633000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":34744000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":32776000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":30759000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":28358000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":28358000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":24783000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":24783000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":17392000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":17392000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":17392000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":17305000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":17592000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":17801000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":14352000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":14187000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":13167000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":13200000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":13803000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":11238000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10444000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":9528000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansAndLeasesReceivableGrossCarryingAmount":{"label":"Loans and Leases Receivable, Gross","description":"Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.","units":{"USD":[{"end":"2011-12-31","val":1215857000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":1199244000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1206894000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1193824000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1161826000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1127421000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1104368000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1057088000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1057088000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":910547000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":910547000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":839788000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":839788000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":839788000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":839788000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":839788000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":823198000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":807962000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":799196000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":785490000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":785490000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":785490000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":785490000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":785490000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":778656000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":750203000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":735017000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":700144000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":700144000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":700144000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":700144000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":705346000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":713602000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":704824000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansAndLeasesReceivableNetReportedAmount":{"label":"Loans and Leases Receivable, Net Amount","description":"Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.","units":{"USD":[{"end":"2010-12-31","val":1161216000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1161216000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1161216000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1168284000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1158484000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1187948000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1187948000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1187948000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1202362000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1174173000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1171475000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1158191000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1127082000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1094645000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1073609000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1028730000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1028730000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":885764000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":885764000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":822396000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":822396000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":822396000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":822396000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":822396000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":805893000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":790370000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":781395000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":771138000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":771138000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":771138000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":771138000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":771138000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":764469000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":737036000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":721817000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":686341000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":686341000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":686341000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":686341000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":694108000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":703158000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":695296000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansAndLeasesReceivableRelatedParties":{"label":"Loans and Leases Receivable, Related Parties","description":"For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":3277000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3363000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3363000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":271000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013Q4I"},{"end":"2013-12-31","val":271000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":271000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1322000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":1322000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":1322000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":1322000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1322000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":1322000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-12-31","val":1933000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1933000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1933000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1893000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":414000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":375000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":348000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2016Q4I"},{"end":"2016-12-31","val":348000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2016-12-31","val":348000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2016-12-31","val":348000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2016-12-31","val":348000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":348000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":348000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":348000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":324000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":315000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":210000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":198000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":198000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":198000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":198000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":174000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":161000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":142000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansAndLeasesReceivableRelatedPartiesAdditions":{"label":"Loans and Leases Receivable, Related Parties, Additions","description":"Reflects the amount of new advances made to related parties in the form of loan and lease receivables.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":221000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":470000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1135000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":438000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":438000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":438000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":438000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":438000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":158000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":158000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":158000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":158000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":158000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2016-01-01","end":"2016-12-31","val":158000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":8000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":8000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":13000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017"},{"start":"2017-01-01","end":"2017-12-31","val":13000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-12-31","val":13000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"start":"2017-01-01","end":"2017-12-31","val":13000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"LoansAndLeasesReceivableRelatedPartiesCollections":{"label":"Loans and Leases Receivable, Related Parties, Collections (Deprecated 2016-01-31)","description":"Reflects the amount of collections received from related parties to reduce the carrying amounts of loans and leases receivable due from them.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-135000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3092000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-3092000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":84000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"LoansPayable":{"label":"Loans Payable","description":"Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).","units":{"USD":[{"end":"2013-12-31","val":405500000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"}]}},"LoansPledgedAsCollateral":{"label":"Loans Pledged as Collateral","description":"Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.","units":{"USD":[{"end":"2016-03-31","val":1000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":568000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":813000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":537700,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":784700,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":509700,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":341600000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":353900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":328600000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":327200000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":337400000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansReceivableHeldForSaleAmount":{"label":"Financing Receivable, Held-for-Sale","description":"Amount, before valuation allowance, of financing receivable classified as held-for-sale.","units":{"USD":[{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-06-30","val":7163000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":6815000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansReceivableHeldForSaleNet":{"label":"Disposal Group, Including Discontinued Operation, Loans Receivable, Net (Deprecated 2015-01-31)","description":"Amount classified as loans attributable to disposal group held for sale or disposed of. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.","units":{"USD":[{"end":"2010-12-31","val":25080000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":25080000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":25080000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":3482000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":21036000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":22549000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":22549000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":22549000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":17929000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":8895000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":13437000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3136000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3136000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":5632000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"}]}},"LoansReceivableHeldForSaleNetNotPartOfDisposalGroup":{"label":"Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance","description":"Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.","units":{"USD":[{"end":"2014-12-31","val":5632000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3041000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":3041000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":3041000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":3041000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":3041000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2490000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2366000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":307000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"LoansReceivableWithFixedRatesOfInterest1":{"label":"Loans Receivable with Fixed Rates of Interest","description":"Amount of loan with fixed rate of interest.","units":{"USD":[{"end":"2012-12-31","val":18429000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":13726000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":13726000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":9913000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":9913000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":11913000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":11913000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":11913000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":11913000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":11913000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":11043000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":15851000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":17880000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":19663000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":19663000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":19663000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":19663000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":19663000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":30054000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":25319000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":18888000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":17933000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":17933000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":17933000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":17933000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":16878000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":21703000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":30092000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LoansReceivableWithVariableRatesOfInterest1":{"label":"Loans Receivable with Variable Rates of Interest","description":"Amount of loan with variable or adjustable rate of interest.","units":{"USD":[{"end":"2012-12-31","val":131225000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":112452000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":112452000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":126215000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":126215000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":104661000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":104661000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":104661000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":104661000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":104661000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":92846000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":86619000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":80432000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":105741000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":105741000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":105741000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":105741000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":105741000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":101124000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":101759000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":98477000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":110354000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":110354000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":110354000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":110354000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":121561000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":110868000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":106592000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LongTermDebt":{"label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2010-12-31","val":32300000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":32300000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":32300000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":22300000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":22300000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":22300000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q4I"},{"end":"2011-12-31","val":22300000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":22300000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"}]}},"MarketingExpense":{"label":"Marketing Expense","description":"Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1564000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":731000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":375000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1037000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":306000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1317000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":455000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":768000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":768000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":313000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":313000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1145000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":377000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1396000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1396000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":398000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":807000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":409000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1271000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1271000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1181000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1181000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1181000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1119000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1119000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1119000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1335000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1335000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1067000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"MortgageLoansInProcessOfForeclosureAmount":{"label":"Mortgage Loans in Process of Foreclosure, Amount","description":"Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.","units":{"USD":[{"end":"2016-12-31","val":2100000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2100000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":2100000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-06-30","val":1700000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1900000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1400000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1400000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":1400000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-06-30","val":629000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":547000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"NetCashProvidedByUsedInFinancingActivities":{"label":"Net Cash Provided by (Used in) Financing Activities","description":"Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":255795000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-108604000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-73156000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-112724000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-43045000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-13717000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-13717000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-84826000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-45959000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":21036000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":21446000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2015-01-01","end":"2015-12-31","val":-49137000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":10475000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":-3340000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":7520000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-60886000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-99775000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-100487000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-90189000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-90189000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-121130000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":6503000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2209000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-27047000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"NetCashProvidedByUsedInFinancingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Financing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-45958000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":63108000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":63108000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-10558000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-10558000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-10558000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-100372000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-100372000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-100372000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-12576000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":16501000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-15744000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-48437000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-48437000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":32152000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":32152000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10475000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-630000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":10230000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-58728000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"NetCashProvidedByUsedInInvestingActivities":{"label":"Net Cash Provided by (Used in) Investing Activities","description":"Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-92033000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-19015000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":18587000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-2836000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":29364000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":13519000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":13519000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":24509000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-7936000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-10913000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-25139000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2015-01-01","end":"2015-12-31","val":-32178000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":-124915000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":-52107000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":-95588000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-4395000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":68596000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":68596000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":51689000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":51689000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":38550000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-20787000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-22754000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-268000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"NetCashProvidedByUsedInInvestingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Investing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-6157000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-26581000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-26581000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":108843000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":108843000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":108843000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":51522000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":51522000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":51522000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-20357000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-13817000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":44303000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-32178000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-32178000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-58129000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-58071000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-125417000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-52205000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-95588000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-4395000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"NetCashProvidedByUsedInOperatingActivities":{"label":"Net Cash Provided by (Used in) Operating Activities","description":"Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":18471000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":13251000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":13821000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":14256000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":27250000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":36158000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":36158000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":28625000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":30587000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":13802000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":29227000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2015-01-01","end":"2015-12-31","val":22792000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":8068000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":18492000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":18528000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-7357000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-6494000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-5782000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-868000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-868000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-1321000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1630000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1310000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":6572000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"NetCashProvidedByUsedInOperatingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Operating Activities, Continuing Operations","description":"Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":28807000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":41550000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":41550000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":31953000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":31953000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":31953000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":5050000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":5050000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":5050000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":4759000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":10050000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":2426000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":22092000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":22092000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":4154000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":4096000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":8570000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":15880000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":15818000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-9515000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"NetIncomeLoss":{"label":"Net Income (Loss) Attributable to Parent","description":"The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3176000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-4158000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-4594000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-708000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":3450000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1683000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":2086000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2855000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":2855000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":769000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":769000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":4571000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1716000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-23408000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":7089000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":2515000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":237000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-2278000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":4786000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2508000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-2508000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-5085000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":5932000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":5845000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":2759000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":12863000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":-1673000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":-5992000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-5992000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-5992000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1139000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2951000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":1812000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2825000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":-126000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1914000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":731000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":731000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1216000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1216000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":485000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":485000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2007000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2007000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":791000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":791000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":16113000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":16113000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-486000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-486000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-2090000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-2090000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1604000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1604000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1685000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1685000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":405000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":405000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-5790000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1692000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":5990000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":4298000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":9506000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":3516000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"NetIncomeLossAvailableToCommonStockholdersBasic":{"label":"Net Income (Loss) Available to Common Stockholders, Basic","description":"Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1572000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-5215000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-5122000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-2297000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":2918000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-444000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1544000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1771000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1771000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":227000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":227000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2958000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1187000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-25550000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4947000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1986000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-820000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-2806000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":4257000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-4623000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-4623000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":-5614000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":5403000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":5313000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":2221000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":10719000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":10719000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":10719000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":-2218000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":-9222000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-9222000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-9222000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":192000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1036000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":844000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-80000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":-1116000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-1889000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-1889000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-1889000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-303000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-303000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-877000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-877000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":-574000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-574000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-1169000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-1169000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-292000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-292000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":11841000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":11841000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-1256000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-1257000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-2860000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-2861000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1604000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1604000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-2455000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-2456000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":405000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":405000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-6560000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1692000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":5990000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":4298000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":9506000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":3516000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"NetInvestmentInDirectFinancingAndSalesTypeLeases":{"label":"Net Investment in Direct Financing and Sales Type Leases","description":"The net amount due as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing and sales-type leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs on direct financing leases; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.","units":{"USD":[{"end":"2010-12-31","val":2211000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2211000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":2211000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":2211000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2211000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2211000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":2211000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"}]}},"NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1":{"label":"Noncash or Part Noncash Divestiture, Amount of Consideration Received","description":"Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5400000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":5400000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":9543000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":11261000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":11303000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":1638000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5099000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":7997000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":7997000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":3851000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3851000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":3851000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":617000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":617000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":617000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":297000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":665000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":1846000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1846000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1846000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":971000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":971000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":971000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":971000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":1548000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":1548000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1548000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1548000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":315000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":315000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"NoninterestBearingDepositLiabilities":{"label":"Noninterest-bearing Deposit Liabilities","description":"The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.","units":{"USD":[{"end":"2010-12-31","val":109891000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":109891000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":109891000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":129407000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":138755000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":152669000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":152669000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":152669000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":158698000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":154696000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":164445000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":149076000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":149076000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":144503000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":144503000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":152888000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":152888000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":75867000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":75867000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":152888000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":161656000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":168666000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":22509000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":174305000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":174305000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":181974000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":181974000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":28301000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":163110000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":159463000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":183881000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":163134000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":175969000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":175655000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"NoninterestBearingDomesticDepositDemand":{"label":"Noninterest-bearing Domestic Deposit, Demand","description":"Amount of money in noninterest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.","units":{"USD":[{"end":"2014-12-31","val":76706000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":75867000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":75867000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":75867000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":75867000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":75867000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":84186000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":91759000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":22509000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":174305000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":174305000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":181974000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":181974000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":28301000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":163110000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":159463000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":183881000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":161677000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":163134000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":175969000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":175655000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"NoninterestExpense":{"label":"Noninterest Expense","description":"Total aggregate amount of all noninterest expense.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":43317000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":23662000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":12677000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":36870000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":13208000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-264000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":48606000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2011-01-01","end":"2011-03-31","val":12694000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":26420000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":26293000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":13727000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":13663000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":39611000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":13318000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":52577000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":52446000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":12302000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":25466000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":13164000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":12371000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":51558000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":51558000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":14023000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":12922000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":11793000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":13623000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":54476000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":54476000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":54476000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":16138000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":60802000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":60802000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":56621000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":13441000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":25649000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":12208000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":37836000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":13111000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":50888000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":49443000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":49443000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":13243000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":12653000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":26138000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":27330000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":13485000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":14087000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":38929000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":38929000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":12791000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":12791000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":50071000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":50071000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":13916000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":13870000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":26801000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":26008000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":12886000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":12450000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":38474000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":37399000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":11673000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":11391000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":48909000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9813000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":19221000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":9408000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":28267000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":9046000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"NoninterestIncome":{"label":"Noninterest Income","description":"The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":20489000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":6520000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":3464000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":10848000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":4328000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":16125000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":3818000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":7040000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":7158000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":3223000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":3174000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":11423000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":4265000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":15831000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15903000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":4216000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":9142000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":4926000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":4778000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":19125000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":19125000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":5205000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":4644000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":4065000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":3655000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":15465000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":15465000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":15465000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":3101000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":13186000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":13186000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":9005000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3871000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":7408000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":3537000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":9072000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":2588000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":11574000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":10129000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":10129000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":3214000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":2624000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":5779000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6971000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":3155000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":3757000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":8847000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":8847000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":3068000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":3068000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":11827000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":11827000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":3075000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":2717000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":5168000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":4382000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":2098000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1665000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":8000000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":6932000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2832000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2550000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":8942000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2358000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":6059000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":3704000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":8557000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":2498000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"NoninterestIncomeOtherOperatingIncome":{"label":"Noninterest Income, Other Operating Income","description":"Amount of revenue earned, classified as other, excluding interest income.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":417000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":111000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":85000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":309000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":198000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":459000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":105000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":209000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":212000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":105000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":105000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":386000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":174000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1139000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":537000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":147000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":358000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":211000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1032000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1032000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":282000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":282000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":282000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":317000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":317000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-06-30","val":241000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":81000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-1202000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":52000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":52000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":201000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":201000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":149000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":149000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":25000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":197000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-176000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":104000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-21000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":72000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":59000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":56000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":80000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":85000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":71000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":13000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":12000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":90000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":6000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":14000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":11000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":32000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":18000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"NumberOfOperatingSegments":{"label":"Number of Operating Segments","description":"Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.","units":{"Segment":[{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"OccupancyNet":{"label":"Occupancy, Net","description":"Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3517000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":2005000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":1028000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":3094000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":1089000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":4118000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":934000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1885000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1885000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":951000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":951000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2898000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1013000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":4029000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4029000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":964000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1984000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":1020000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":4184000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4184000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":4105000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":4105000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":4105000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":4204000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":4204000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":4204000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":970000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1900000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":930000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2617000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":717000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3452000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3452000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3452000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":839000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":839000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1743000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":1743000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":904000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":904000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2414000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2412000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":671000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":669000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":3205000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3205000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":491000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":686000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1037000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1555000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":546000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":869000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1590000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2360000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":553000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":805000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":3124000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":590000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1070000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":480000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1592000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":522000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OperatingLeasesFutureMinimumPaymentsDue":{"label":"Operating Leases, Future Minimum Payments Due","description":"Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.","units":{"USD":[{"end":"2013-12-31","val":601000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":661000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":255000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":134000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":22000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueCurrent":{"label":"Operating Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":221000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":267000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":129000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":122000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":22000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFiveYears":{"label":"Operating Leases, Future Minimum Payments, Due in Five Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Operating Leases, Future Minimum Payments, Due in Four Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":108000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":7000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Operating Leases, Future Minimum Payments, Due in Three Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":134000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":180000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":5000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Operating Leases, Future Minimum Payments, Due in Two Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":138000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":214000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":114000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueThereafter":{"label":"Operating Leases, Future Minimum Payments, Due Thereafter","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"OperatingLeasesRentExpenseNet":{"label":"Operating Leases, Rent Expense, Net","description":"Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":382000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":423000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":408000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":507000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":507000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":451000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":356000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":356000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":356000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":272000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":272000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":272000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":241000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":241000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":236000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"OriginationOfMortgageServicingRightsMSRs":{"label":"Origination of Mortgage Servicing Rights (MSRs) (Deprecated 2013-01-31)","description":"The increase during the reporting period in the cumulative value of servicing rights. This increase is the result of new servicing rights that are created when mortgages are sold or transferred.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":701000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":203000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":1417000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":756000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherAmortizationOfDeferredCharges":{"label":"Amortization of Other Deferred Charges","description":"Amount of amortization of other deferred costs recognized in the income statement.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":14000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":7000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":10000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":14000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":3000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":7000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":7000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":10000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":14000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":3000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":7000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2013-04-01","end":"2013-06-30","val":37100000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":37100000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"}]}},"OtherAssets":{"label":"Other Assets","description":"Amount of assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":9228000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":8682000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":8682000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":5638000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3438000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8387000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":8387000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6173000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":6142000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9916000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":27634000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":27520000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":27520000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":26464000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":26464000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":17192000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":17192000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":17192000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":17192000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":17192000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":17286000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":17596000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":17524000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":15750000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":31187000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":31187000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":31187000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":31376000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":31305000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":23717000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":21730000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":14781000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":14781000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":14781000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":14781000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":13567000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":14355000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":13283000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"Gross appreciation or the gross loss in value of the total unsold securities. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":-32000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-108000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent","description":"Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-1308000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-89000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-89000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":354000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1155000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":-1877000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-181000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":974000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-2222000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-2222000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-2222000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":3457000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":3457000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6926000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6926000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":3469000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":3469000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":5957000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":5957000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-969000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-969000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-4290000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-4290000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":630000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":630000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2114000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2114000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1484000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1484000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2343000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2343000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":229000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":229000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2437000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-8108000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-8999000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-892000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-11415000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-2418000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent","description":"Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":222000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":254000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":2000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":110000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent","description":"Amount after tax of other comprehensive income (loss) attributable to parent entity.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-831000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":376000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":376000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-738000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-738000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-738000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-54000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-54000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-54000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":353000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1156000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":-1877000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-182000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":974000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-2226000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-2226000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-2226000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":3457000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":3457000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6872000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6872000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":3415000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":3415000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":5773000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":5773000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":-1099000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-1099000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-2714000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-2714000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":381000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":381000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2032000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2032000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1654000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1654000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2155000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2155000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":123000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":123000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2228000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-6028000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-6690000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-663000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-8487000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-1798000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax (Deprecated 2013-01-31)","description":"Before tax amount of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":-196000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-25000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax (Deprecated 2013-01-31)","description":"Tax effect of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":-65000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-9000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax","description":"Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1057000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-149000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-80000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":4000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":54000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":184000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":130000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":184000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1248000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1248000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-1248000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax","description":"Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":485000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-250000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-250000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":490000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":490000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":36000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"OtherComprehensiveIncomeLossTaxPortionAttributableToParent1":{"label":"Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent","description":"Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-490000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-36000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-36000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-1760000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-1760000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":249000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":249000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":1330000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":1330000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1078000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1078000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1436000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1436000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":106000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":106000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1457000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2080000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-2309000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-229000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-2928000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-620000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax (Deprecated 2012-01-31)","description":"Pre tax reclassification adjustment for gains or losses realized upon the sale of securities.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":-171000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax (Deprecated 2012-01-31)","description":"Tax effect on the reclassification adjustment for gains or losses realized upon the sale of securities during the period.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1056,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":15,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":57000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-12-31","val":314,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax","description":"Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":122000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":544000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":422000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-259000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-179000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":4000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":183000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":477000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":477000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-1308000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1308000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-89000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax","description":"Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1277000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":217000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":538000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-550000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":32000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-222000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":222000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-797000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":831000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":108000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-2000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax","description":"Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":137,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":314,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-40000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":191000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":152000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":171,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":71000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":73000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherInterestAndDividendIncome":{"label":"Other Interest and Dividend Income","description":"Amount, after discount, accretion and premium amortization, of interest income and dividend income classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":83000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":41000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":21000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":62000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":21000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":83000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":35000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":70000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":40000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":35000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":18000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":61000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":21000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":77000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":35000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":69000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":34000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherInvestments":{"label":"Other Investments","description":"Amount of investments classified as other.","units":{"USD":[{"end":"2010-12-31","val":9335000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":9335000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":9335000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":8696000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8992000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":9113000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011Q4I"}]}},"OtherLiabilities":{"label":"Other Liabilities","description":"Amount of liabilities classified as other.","units":{"USD":[{"end":"2010-12-31","val":5990000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":5990000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":5990000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":5442000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6732000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6360000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":6360000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6360000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":5519000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5874000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":10440000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":15463000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":15463000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":21176000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":21176000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":26621000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":26621000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":26621000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":26621000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":26621000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":28690000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":31537000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":35872000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":41491000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":41491000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":33822000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":33822000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":33822000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":10682000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7147000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":15566000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":15399000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":15399000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":15399000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":15399000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":8414000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7456000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":6243000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"OtherNoninterestExpense":{"label":"Other Noninterest Expense","description":"Amount of noninterest expense classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2131000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1319000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":781000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1335000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":16000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1869000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1039000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1691000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1781000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":653000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":754000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2505000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":724000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":22149000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3110000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":99000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":836000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":737000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":19315000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":19315000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":24976000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":24976000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":24976000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":29317000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":29317000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":11452000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2879000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5507000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":2628000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":7082000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":2499000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":23381000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":9833000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":9833000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":2848000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":2258000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":4776000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":5968000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":2518000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":3120000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":8044000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":8046000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":3268000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":3270000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":10484000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":10484000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":3564000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":2902000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":7079000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":5107000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":3516000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":2517000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":10010000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":7675000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2931000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2568000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2118000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":4281000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":2163000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":5955000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1674000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"OtherNonoperatingExpense":{"label":"Other Nonoperating Expense","description":"Amount of expense related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":3600000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2399000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2399000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2987000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2987000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2987000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":4714000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":4714000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":4713000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3443000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3443000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4988000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"OtherNonoperatingGainsLosses":{"label":"Other Nonoperating Gains (Losses)","description":"Amount of gain (loss) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-508000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-665000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-52000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-217000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-165000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-723000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-32000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-62000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-30000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"OtherRealEstate":{"label":"Other Real Estate","description":"Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.","units":{"USD":[{"end":"2010-12-31","val":21860000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":21860000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":21860000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":13976000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":14898000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":14139000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q4I"},{"end":"2011-12-31","val":14139000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":15575000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2017-12-31","val":405000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":405000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":421000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":222000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"OtherRealEstateAndForeclosedAssets":{"label":"Other Real Estate and Foreclosed Assets","description":"Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.","units":{"USD":[{"end":"2010-12-31","val":21860000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2010Q4I"},{"end":"2011-03-31","val":21218000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q1I"},{"end":"2011-06-30","val":13976000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2I"},{"end":"2011-12-31","val":13193000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011Q4I"},{"end":"2011-12-31","val":14139000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2012-03-31","val":15575000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":30199000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":13847000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":9211000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":9211000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-03-31","val":8498000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9143000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9495000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":14002000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013Q4I"},{"end":"2013-12-31","val":14002000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":14002000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":13980000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":13980000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":13980000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":13980000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014Q4I"},{"end":"2014-12-31","val":13980000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":13980000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":12200000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-03-31","val":12200000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q1I"},{"end":"2015-06-30","val":10447000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q2I"},{"end":"2015-06-30","val":10447000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-09-30","val":10170000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":8346000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":8346000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":8346000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8203000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":8203000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q1I"},{"end":"2016-03-31","val":8203000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-03-31","val":8203000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":8653000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":8653000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-06-30","val":8653000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-06-30","val":8653000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":7054000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":7054000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2016Q4I"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":8436000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":7991000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q1I"},{"end":"2017-03-31","val":7991000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-03-31","val":7991000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-03-31","val":7991000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":7085000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q2I"},{"end":"2017-06-30","val":7085000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-06-30","val":7085000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-06-30","val":7085000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-09-30","val":8199000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-09-30","val":8199000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-12-31","val":6432000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":6432000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":6432000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":6432000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":6449000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q1I"},{"end":"2018-03-31","val":6449000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2018-06-30","val":5870000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q2I"},{"end":"2018-06-30","val":5870000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-09-30","val":5982000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"PaymentsForOriginationAndPurchasesOfLoansHeldForSale":{"label":"Payments for Origination and Purchases of Loans Held-for-sale","description":"The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":79612000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":-45204000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-61791000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":77163000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":77163000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-15908000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-34854000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-34854000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-55770000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-55770000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-55770000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-55770000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsForOriginationOfMortgageLoansHeldForSale":{"label":"Payments for Origination of Mortgage Loans Held-for-sale","description":"The amount of cash paid for the origination of mortgages that are held for sale.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":397064000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-65142000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-135106000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":225700000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-30502000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48707000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-48707000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-89116000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-157618000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":157618000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":-63257000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":130565000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":-270605000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-270605000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":161455000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-161455000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-161455000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":79612000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-79612000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-03-31","val":-24302000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-12-31","val":77163000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-15908000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"}]}},"PaymentsForProceedsFromLoansAndLeases":{"label":"Payments for (Proceeds from) Loans and Leases","description":"The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":49857000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-22206000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":-20512000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-8645000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-1050000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":7449000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":7449000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":-1145000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":31722000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":32984000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":18215000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":14423000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":40856000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":40856000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-124327000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-124327000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-124327000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-130448000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-130448000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-130448000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-19302000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-42327000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-87515000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-88263000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-88516000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-88263000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-15929000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-15987000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-30611000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-30109000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-39598000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-39598000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-66755000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-66755000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":-6615000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-6615000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-35112000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-35112000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-48608000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-48608000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-84280000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":8424000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":23846000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":15316000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsForRepurchaseOfCommonStock":{"label":"Payments for Repurchase of Common Stock","description":"The cash outflow to reacquire common stock during the period.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":473000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":8000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":9000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"PaymentsForRepurchaseOfRedeemablePreferredStock":{"label":"Payments for Repurchase of Redeemable Preferred Stock","description":"The cash outflow for reacquisition of callable preferred stock.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":37316000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":37316000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":37316000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":37316000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":37316000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":37316000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":37316000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsOfDividendsCommonStock":{"label":"Payments of Ordinary Dividends, Common Stock","description":"Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":5155000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1739000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":1739000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":1739000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":645000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":965000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":966000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"PaymentsOfDividendsPreferredStockAndPreferenceStock":{"label":"Payments of Ordinary Dividends, Preferred Stock and Preference Stock","description":"Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1227000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":970000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":970000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":969000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1976000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1976000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2460000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":2944000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":484000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":968000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2017-01-01","end":"2017-03-31","val":12965000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"PaymentsOfOrdinaryDividends":{"label":"Payments of Ordinary Dividends","description":"Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":3588000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2904000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2904000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":484000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":484000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":484000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015"}]}},"PaymentsOfStockIssuanceCosts":{"label":"Payments of Stock Issuance Costs","description":"The cash outflow for cost incurred directly with the issuance of an equity security.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-100000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"PaymentsToAcquireAvailableForSaleSecurities":{"label":"Payments to Acquire Available-for-sale Securities","description":"The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":140480000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":99426000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":119769000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":156993000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":5693000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":29232000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":29232000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":70958000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":103280000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":103280000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":9003000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":50340000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":97742000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":97742000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":78631000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":78631000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":78631000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":157101000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":157101000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":157101000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":55011000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":92879000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":102890000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":179718000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":179718000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":179718000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":77460000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":77460000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":183942000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":183942000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":225741000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":225741000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":285978000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":285978000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":26823000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":26823000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":48046000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":48046000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":92437000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":92437000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":142867000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":21824000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":21824000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":21824000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsToAcquireHeldToMaturitySecurities":{"label":"Payments to Acquire Held-to-maturity Securities","description":"Amount of cash outflow through purchase of long-term held-to-maturity securities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2766000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":10095000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":10095000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"PaymentsToAcquireIntangibleAssets":{"label":"Payments to Acquire Intangible Assets","description":"The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":367000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":209000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":210000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":210000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"PaymentsToAcquireLifeInsurancePolicies":{"label":"Payment to Acquire Life Insurance Policy, Investing Activities","description":"Amount of cash outflow for payment of premium on corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-06-30","val":10000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":10000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":10000000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":10098000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":15000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsToAcquireLoansHeldForInvestment":{"label":"Payments to Acquire Loans Held-for-investment","description":"The cash outflow associated with purchasing loans held for investment purposes during the period.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1101000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1200000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1200000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1914000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":2195000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2690000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":832000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2041000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":2308000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2308000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2505000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2505000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2505000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":431000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":431000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":431000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":37190000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":37190000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":37190000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":36323000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":36323000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"PaymentsToAcquireOtherInvestments":{"label":"Payments to Acquire Other Investments","description":"Amount of cash outflow to acquire investments classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":4936000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":93000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":392000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":482000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":171000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":180000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":180000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":577000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":760000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":760000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":161000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":347000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":757000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":757000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":718000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":718000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":718000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":160000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":160000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":160000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":36000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":36000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":36000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-09-30","val":2000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":2000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":857000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1450000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":1479000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsToAcquirePropertyPlantAndEquipment":{"label":"Payments to Acquire Property, Plant, and Equipment","description":"The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":10206000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":669000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":932000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":1368000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":229000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":715000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":715000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1258000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":2041000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2041000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":127000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":278000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":1354000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1354000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1511000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1511000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1511000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":538000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":538000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":538000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":15000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":68000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":193000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":350000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":350000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":350000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":4559000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":4559000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":4721000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":4721000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":4745000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":4745000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":4905000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":4905000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":390000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":390000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":3637000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":3637000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3907000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":3907000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":3986000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":122000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":359000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":450000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PostageExpense":{"label":"Postage Expense","description":"Amount of expense associated with postage.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":567000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":322000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":161000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":486000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":164000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":626000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":177000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":357000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":357000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":180000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":180000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":510000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":153000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":646000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":646000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":225000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":395000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":170000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":763000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":763000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":795000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":795000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":795000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":748000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":748000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":748000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":648000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":648000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":639000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"PreferredStockDividendsAndOtherAdjustments":{"label":"Preferred Stock Dividends and Other Adjustments","description":"The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1604000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1057000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":528000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1589000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":532000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2127000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":542000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1084000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1084000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":542000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":542000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1613000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":529000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2142000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2142000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":529000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1057000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":528000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":529000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":2115000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2115000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":529000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":529000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":532000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":538000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2144000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2144000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2144000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":545000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":3230000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":3230000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":3230000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":947000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1915000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":968000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2905000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":990000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3803000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3803000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3803000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1034000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1034000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2093000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2093000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1059000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1059000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":3176000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":3176000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":1083000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":1083000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":4272000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":4272000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":770000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":771000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":770000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":771000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":770000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":771000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":770000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"PreferredStockNoParValue":{"label":"Preferred Stock, No Par Value","description":"Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.","units":{"USD/shares":[{"end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"PreferredStockSharesAuthorized":{"label":"Preferred Stock, Shares Authorized","description":"The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2010-12-31","val":1000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":1000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1000000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1000000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":1000000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1000000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":1000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":1000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":1000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":1000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1000000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":1000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":1000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":1000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":1000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1000000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"PreferredStockSharesOutstanding":{"label":"Preferred Stock, Shares Outstanding","description":"Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.","units":{"shares":[{"end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"PremiumsEarnedNet":{"label":"Premiums Earned, Net","description":"Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1364000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":462000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":274000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":770000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":308000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1096000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":164000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":305000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":305000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":141000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":141000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":556000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":251000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":869000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":256000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":541000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":285000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"}]}},"PrepaidExpenseCurrentAndNoncurrent":{"label":"Prepaid Expense","description":"Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.","units":{"USD":[{"end":"2010-12-31","val":6076000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6076000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":6076000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":4693000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4247000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3426000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3426000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":3426000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":3187000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3246000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"ProceedsFromIssuanceOfCommonStock":{"label":"Proceeds from Issuance of Common Stock","description":"The cash inflow from the additional capital contribution to the entity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":289000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":134000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":134000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":134000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":100000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":144000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":155000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":168000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":138000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":138000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":138000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":138000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":138000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":138000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":11872000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":11872000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":158000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":176000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":176000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":193000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":193000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":9012000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":46000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":99000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromIssuanceOfDebt":{"label":"Proceeds from Issuance of Debt","description":"The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":30000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":20000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":20000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":20000000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"ProceedsFromIssuanceOfPreferredStockAndPreferenceStock":{"label":"Proceeds from Issuance of Preferred Stock and Preference Stock","description":"Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":35539000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":37089000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":37089000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"ProceedsFromIssuanceOfPrivatePlacement":{"label":"Proceeds from Issuance of Private Placement","description":"The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.","units":{"USD":[{"end":"2016-12-19","val":52000000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q4I"},{"end":"2016-12-19","val":52000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-19","val":52000000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-19","val":52000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"}]}},"ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities":{"label":"Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale","description":"Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":11241000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":50146000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":101830000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":126828000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":28718000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":41080000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":41080000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":75469000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":108904000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":108904000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":16806000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":40883000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":115685000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":115685000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":61643000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":61643000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":61643000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":62562000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":62562000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":62562000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":11738000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":30014000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":51143000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":64316000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":64316000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":64316000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":6998000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":6998000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":22994000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":22994000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":46694000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":46694000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":55059000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":55059000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":14264000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":14264000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":25555000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":25555000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":38647000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":38647000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":53346000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9905000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":23141000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":36370000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities":{"label":"Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities","description":"The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":258000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":165000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":248000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":329000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":81000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":162000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":162000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":245000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":329000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":329000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":84000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":169000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":353000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":353000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":475000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":475000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":475000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":7893000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":7893000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":7893000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":39000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":94000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":141000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":191000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":191000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":191000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":35000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":35000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":69000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":69000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":104000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":104000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":140000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":140000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":822000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":822000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":853000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":853000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":884000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":884000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":908000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":26000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":49000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":72000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments":{"label":"Proceeds from Maturities, Prepayments and Calls of Other Investments","description":"The cash inflow associated with the maturity (principal being due), prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":731000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":171000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":171000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":171000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":470000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":470000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":470000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":470000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":470000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":436000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":662000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":728000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":728000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":83000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":83000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":83000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":196000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1055000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":1055000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":374000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":374000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":374000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"ProceedsFromPaymentsForOtherFinancingActivities":{"label":"Proceeds from (Payments for) Other Financing Activities","description":"Amount of cash inflow (outflow) from financing activities classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-09-30","val":1279000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":1292000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"}]}},"ProceedsFromSaleOfAvailableForSaleSecurities":{"label":"Proceeds from Sale of Available-for-sale Securities","description":"The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":95894000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":3422000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":3422000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":4115000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":4432000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":7090000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":7090000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":20507000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":20507000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":20507000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":2885000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2885000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":4142000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":4142000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":4142000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":10951000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":10951000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":10951000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":17716000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":17716000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":98259000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":98259000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":98259000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":98259000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":56543000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":56543000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":56543000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":56543000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":56543000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromSaleOfLoansHeldForSale":{"label":"Proceeds from Sale of Loans Held-for-sale","description":"The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":400072000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":67237000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":128261000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":213177000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":51190000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":71343000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":71343000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":94525000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":162513000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":162513000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":68902000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":146424000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":285379000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":285379000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":175368000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":175368000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":175368000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":78679000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":78679000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":78679000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-23143000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-42035000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":-74302000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":81561000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":81561000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":81561000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":-14943000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":-14943000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-33311000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":-33311000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":-51746000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":-51737000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-51392000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-51392000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-394000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromSaleOfOtherInvestments":{"label":"Proceeds from Sale of Other Investments","description":"The cash inflow associated with the sale of other investments not otherwise defined in the taxonomy.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":888000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":888000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":888000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":31000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":31000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":33000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":33000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":33000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromSaleOfOtherRealEstate":{"label":"Proceeds from Sale of Other Real Estate","description":"The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":9556000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":5063000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":13497000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":16128000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1176000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":3493000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":3493000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1380000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":3841000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3819000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":99000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":576000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":6880000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":6880000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1538000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1538000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1538000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":8849000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":8849000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":8849000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3393000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5619000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":2226000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":7511000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1892000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":7989000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":7989000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7989000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":928000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":928000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2358000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2358000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1430000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1430000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":3724000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":3724000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":1366000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":1366000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":5157000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5157000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":1117000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1117000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":2116000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":2116000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":999000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":999000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3251000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":3251000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":1135000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":1135000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":5226000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":509000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1535000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":1026000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2358000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":823000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ProceedsFromSaleOfPropertyPlantAndEquipment":{"label":"Proceeds from Sale of Property, Plant, and Equipment","description":"The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":21000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":31000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":31000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":31000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":69000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":69000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":69000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":69000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":69000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":1000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromShortTermDebt":{"label":"Proceeds from Short-term Debt","description":"The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.","units":{"USD":[{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-06-30","val":16900000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":13100000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ProceedsFromStockPlans":{"label":"Proceeds from Stock Plans","description":"The cash inflow associated with the amount received from the stock plan during the period.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":100000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":138000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":138000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":158000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-12-31","val":212000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":68000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"}]}},"ProfessionalFees":{"label":"Professional Fees","description":"A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3023000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1326000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":573000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2222000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":896000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2983000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":725000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1650000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1650000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":925000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":925000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2433000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":783000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":3061000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3061000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":863000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1755000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":892000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":3839000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3839000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":7169000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":7169000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":7169000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":10868000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":10868000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":10868000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1949000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4044000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":2095000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":5514000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1470000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":7304000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":7304000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7304000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1359000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1359000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3410000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":3410000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":2051000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":2051000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":4949000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":4949000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":1539000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":1539000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":6376000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6376000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":2212000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":2633000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":3286000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":3947000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":1074000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":1314000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":3998000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":4488000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":712000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":541000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":5397000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":525000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1052000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":527000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1540000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":488000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"PropertyPlantAndEquipmentGross":{"label":"Property, Plant and Equipment, Gross","description":"Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2012-12-31","val":58094000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":59157000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":59157000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":59111000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":59111000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":58832000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":58832000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":50759000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":50760000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":54150000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2010-12-31","val":30264000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":30264000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":30264000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":29453000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":29258000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":27082000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":27082000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":29297000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":26702000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":26352000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":27772000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":26554000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":26554000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":24734000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":24734000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":23373000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":23373000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":23373000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":23373000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":23373000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":27556000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":27325000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":26201000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":25959000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":25959000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":25959000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":25959000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":25959000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":26001000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":28872000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":28794000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":28542000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":28542000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":28542000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":28542000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":28336000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":28250000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":28027000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ProvisionForLoanAndLeaseLosses":{"label":"Provision for Loan and Lease Losses","description":"Amount of expense related to estimated loss from loan and lease transactions.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":26024000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-15358000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":-11101000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":15858000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":500000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":15208000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":20258000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2011-01-01","end":"2011-03-31","val":1450000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":3579000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":-3579000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":2129000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-2129000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":4879000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1300000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":30561000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":8245000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":2119000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":11874000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":9755000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":1156000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":27206000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":27206000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2012-10-01","end":"2012-12-31","val":11976000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":30000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":30000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-970000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-970000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1220000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1220000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":-250000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":-250000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-1220000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":220000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-480000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-700000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-1480000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-1000000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ProvisionForLoanLeaseAndOtherLosses":{"label":"Provision for Loan, Lease, and Other Losses","description":"Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":3579000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":2129000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":30561000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":11874000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":9755000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":27206000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":27206000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1800000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1800000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":30000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":30000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-970000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-970000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1220000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1220000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":-250000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":-250000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-1220000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":220000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-480000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-700000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-1480000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-1000000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"RepaymentsOfDebt":{"label":"Repayments of Debt","description":"The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":20039000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":20020000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":20030000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":20041000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1152000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1152000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":1152000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1152000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":11152000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"RepaymentsOfLongTermDebt":{"label":"Repayments of Long-term Debt","description":"The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":20000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":20000000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":20000000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":20000000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":20000000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":20000000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"RepaymentsOfShortTermDebt":{"label":"Repayments of Short-term Debt","description":"The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":11152000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"RepaymentsOfSubordinatedShortTermDebt":{"label":"Repayments of Subordinated Short-term Debt","description":"The cash outflow for an obligation which places a lender in a lien position behind debt having a higher priority of repayment (senior loan) in liquidation of the entity's assets scheduled to be repaid within one year or in the normal operating cycle of the entity, if longer.","units":{"USD":[{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-03-31","val":10310000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10310000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":10310000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"RestatementOfPriorYearIncomeGross":{"label":"Restatement of Prior Year Income, Gross (Deprecated 2020-01-31)","description":"Resulting effect of restatement to correct an error, before tax effects, on the net income of prior periods for the year in which any adjustments are first made. In statements containing more than one period, discloses the effects for each period.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-15736000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010"}]}},"RestrictedCashCurrent":{"label":"Restricted Cash, Current","description":"Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.","units":{"USD":[{"end":"2017-12-31","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2018-06-30","val":100000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":100000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"RestrictedStockExpense":{"label":"Restricted Stock or Unit Expense","description":"Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":82000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":82000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":16000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":16000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":49000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":50000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":91000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":91000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":273000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":217000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":612000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":1105000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2010-12-31","val":74225000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":83018000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2010-12-31","val":83018000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":83018000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":80164000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":84705000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":84240000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":84240000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":84240000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":86388000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":82534000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":47334000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":41546000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":51247000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":57622000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":63162000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":54958000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":54958000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":47084000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":47084000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":44232000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":44232000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":44232000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":44232000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":44232000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":43885000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":43267000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":42930000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":60651000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":55391000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":55391000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":55391000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":55391000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":54134000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":52530000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":52935000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":54587000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":54587000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":54587000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":54587000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":56279000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":60577000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":64093000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"SecurityOwnedAndPledgedAsCollateralFairValue":{"label":"Security Owned and Pledged as Collateral, Fair Value","description":"Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.","units":{"USD":[{"end":"2012-12-31","val":33000000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":92600000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":92600000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":78500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":78500000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":91700000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":91700000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":91700000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":91700000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":91700000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":90500000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":96200000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":82900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":87900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":87900000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":87900000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":87900000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":87900000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":84900000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":85600000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":87900000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":87400000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":87400000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":87400000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":87400000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":83800000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":102000000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":100300000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"ServicingAsset":{"label":"Servicing Asset","description":"Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.","units":{"USD":[{"end":"2011-12-31","val":6250000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2012-06-30","val":6639000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2013-12-31","val":958567000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":7453000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":918724000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":6882000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":6882000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":5869000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":5311000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5615000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":6667000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6176000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5499000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"}]}},"ServicingAssetAtAmortizedValue":{"label":"Servicing Asset at Amortized Cost","description":"Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"end":"2012-12-31","val":10313000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10336000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2013-12-31","val":10336000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9470000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":9470000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":7453000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2014Q4I"},{"end":"2014-12-31","val":9470000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2014-12-31","val":9470000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":9470000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":9318000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-03-31","val":9318000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9144000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q2I"},{"end":"2015-06-30","val":9144000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-09-30","val":8939000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":8777000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":8777000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":6882000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":8777000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":8777000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":8777000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":8777000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8614000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":5869000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q1I"},{"end":"2016-03-31","val":8614000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-03-31","val":8614000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":5311000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":5311000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-06-30","val":8415000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-06-30","val":8415000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":5615000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":8293000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":6905000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":7903000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":7903000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":6667000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q1I"},{"end":"2017-03-31","val":7604000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":6176000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q2I"},{"end":"2017-06-30","val":6176000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-09-30","val":5499000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"ServicingAssetAtAmortizedValueAdditions":{"label":"Servicing Asset at Amortized Cost, Additions","description":"Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":1563000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":810000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":810000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":243000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":448000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":205000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":616000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":168000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":822000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":822000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":822000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":158000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":158000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":354000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":355000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":196000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":197000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":563000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":554000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":209000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":199000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":581000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":581000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"ServicingAssetAtAmortizedValueAmortization1":{"label":"Servicing Asset at Amortized Cost, Amortization","description":"Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":-756000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-373000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":1505000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-794000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-402000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1623000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1623000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1540000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1540000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1540000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1676000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1676000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1676000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":395000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":774000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":379000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1147000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":373000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1515000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":1515000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":321000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":321000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":717000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":396000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1038000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":321000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1455000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":299000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"ServicingAssetAtAmortizedValueDisposals":{"label":"Servicing Asset at Amortized Cost, Disposals","description":"Amount conveyed to unrelated parties of contract to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5210000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"}]}},"ServicingAssetAtAmortizedValueValuationAllowance":{"label":"Servicing Asset at Amortized Cost, Increase (Decrease) for Valuation Allowance Adjustment","description":"Amount of increase (decrease) in the amortized amount from a decrease (increase) in the valuation allowance applied to the servicing asset for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":1393000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":1925000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-04-01","end":"2016-06-30","val":754000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1830000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-07-01","end":"2016-09-30","val":-95000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":558000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":238000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":729000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":729000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":491000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":491000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1406000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":1406000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":677000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":677000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":1695000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"ServicingAssetAtFairValueAdditions":{"label":"Servicing Asset at Fair Value, Additions","description":"The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1663000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2748000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2748000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1563000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1563000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":810000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"ServicingAssetAtFairValueAmount":{"label":"Servicing Asset at Fair Value, Amount","description":"Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.","units":{"USD":[{"end":"2010-12-31","val":9030000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":7960000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2010-12-31","val":7960000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":7960000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":7857000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6322000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":9188000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":9188000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2011-12-31","val":6250000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":6250000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":7078000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-12-31","val":10313000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":10313000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":8300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013Q4I"},{"end":"2013-12-31","val":10336000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":10336000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":7500000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":9470000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":7500000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7000000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7500000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6500000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6900000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":6900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6900000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2016-03-31","val":5900000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":5900000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1I"},{"end":"2016-06-30","val":5300000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":5300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":5600000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":5600000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":6900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":6900000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":6700000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6200000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5500000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"}]}},"ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions":{"label":"Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions","description":"Amount of increase (decrease) in fair value from changes in the inputs, assumptions, or model used to calculate the fair value of the contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1868000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":404000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":404000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-1321000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1321000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-1321000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-4000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-4000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-4000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":371000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-415000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":468000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":-122000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":-122000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":850000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":850000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1208000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":783000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-897000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-61000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate":{"label":"Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate","description":"Discount rate used to estimate the fair value of servicing assets and servicing liabilities.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.1075,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.1075,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.1075,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0.1075,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.1075,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.1075,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.105,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0.105,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.105,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.105,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2015-01-01","end":"2015-12-31","val":0.105,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0.105,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.105,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-03-31","val":0.105,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0.112,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":0.115,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0.105,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.105,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-12-31","val":0.105,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2016-01-01","end":"2016-12-31","val":0.105,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-12-31","val":0.105,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2017-01-01","end":"2017-03-31","val":0.105,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.105,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0.105,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":147000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":72000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":109000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":145000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":19000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":38000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":38000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":58000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":77000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":77000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":6000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":20000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":29000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":29000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross","description":"Gross number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013"}]}},"ShortTermBorrowings":{"label":"Short-term Debt","description":"Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":1152000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1152000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":1152000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":10000000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10000000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011Q4I"},{"end":"2012-06-30","val":0,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.","units":{"USD":[{"end":"2008-12-31","val":78180000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2008Q4I"},{"end":"2009-12-31","val":110361000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009Q4I"},{"end":"2010-12-31","val":108530000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":117323000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2010-12-31","val":117323000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":117323000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":114818000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":118404000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":78679000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":78679000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2011-12-31","val":117969000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2011-12-31","val":117969000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":117969000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":120059000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":116375000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":81693000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q3I"},{"end":"2012-12-31","val":75858000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2012Q4I"},{"end":"2012-12-31","val":75858000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2012-12-31","val":75858000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-03-31","val":85338000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q1I"},{"end":"2013-06-30","val":91318000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q2I"},{"end":"2013-09-30","val":96963000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":88710000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2013-12-31","val":88710000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":88710000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":88710000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2013Q4I"},{"end":"2014-12-31","val":81003000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":81003000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":81003000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":81003000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2014Q4I"},{"end":"2014-12-31","val":81003000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2014-12-31","val":81003000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":81003000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":80684000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1I"},{"end":"2015-06-30","val":80364000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":80232000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":76300000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":76300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015Q4I"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":76300000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":79593000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":79593000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1I"},{"end":"2016-06-30","val":82434000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2I"},{"end":"2016-06-30","val":82434000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":81043000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3I"},{"end":"2016-09-30","val":81043000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2016Q4I"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":96487000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1I"},{"end":"2017-03-31","val":96487000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2017-06-30","val":96586000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2I"},{"end":"2017-06-30","val":96586000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2017-09-30","val":97173000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-09-30","val":97172000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2017-12-31","val":99585000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":99585000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":99585000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":99585000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":95534000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":100204000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":102586000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"StockholdersEquityBeforeTreasuryStock":{"label":"Stockholders' Equity before Treasury Stock","description":"Total amount of stockholders' equity (deficit) items including stock value, paid in capital, retained earnings and including equity attributable to noncontrolling interests and before deducting the carrying value of treasury stock.","units":{"USD":[{"end":"2010-12-31","val":128297000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":128297000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":128297000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":125792000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":129378000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":128943000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":128943000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":128943000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":131033000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":127349000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":86832000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":99684000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":99684000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":91891000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":91891000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":86180000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":86180000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":86180000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":86180000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":86180000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":88576000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":91417000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":90026000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":134107000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":99585000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"StockIssuedDuringPeriodSharesStockOptionsExercised":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period","description":"Number of share options (or share units) exercised during the current period.","units":{"shares":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014"}]}},"StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan":{"label":"Stock Issued During Period, Value, Employee Stock Ownership Plan","description":"Aggregate value of stock issued during the period as a result of employee stock ownership plan (ESOP).","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":3000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-12-31","val":6000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":661000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":778000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"StockIssuedDuringPeriodValueIssuedForServices":{"label":"Stock Issued During Period, Value, Issued for Services","description":"Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.","units":{"USD":[{"start":"2017-01-01","end":"2017-03-31","val":158000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":158000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":176000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":176000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":193000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":193000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":212000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":70000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":70000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":132000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"StockIssuedDuringPeriodValueNewIssues":{"label":"Stock Issued During Period, Value, New Issues","description":"Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":12641000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":12641000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"}]}},"StockIssuedDuringPeriodValueRestrictedStockAwardGross":{"label":"Stock Issued During Period, Value, Restricted Stock Award, Gross","description":"Aggregate value of stock related to Restricted Stock Awards issued during the period.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"StockIssuedDuringPeriodValueTreasuryStockReissued":{"label":"Stock Issued During Period, Value, Treasury Stock Reissued","description":"Value of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":279000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":134000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2014-01-01","end":"2014-12-31","val":100000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":100000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":100000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":145000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":155000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":165000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":198000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":138000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":138000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":138000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":138000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":138000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":138000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":138000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":138000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"}]}},"SuppliesExpense":{"label":"Supplies Expense","description":"Amount of expense associated with supplies that were used during the current accounting period.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":698000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":209000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-04-01","end":"2010-06-30","val":118000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":311000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":102000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":438000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":361000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":506000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":506000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-04-01","end":"2011-06-30","val":145000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":145000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":598000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":92000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":780000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":780000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":199000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":374000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":175000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":691000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":691000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":652000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":652000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":652000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":444000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":444000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":444000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":486000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":486000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":794000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"}]}},"TaxAdjustmentsSettlementsAndUnusualProvisions":{"label":"Tax Adjustments, Settlements, and Unusual Provisions","description":"Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":525000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"}]}},"TaxCreditCarryforwardAmount":{"label":"Tax Credit Carryforward, Amount","description":"The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.","units":{"USD":[{"end":"2013-12-31","val":1500000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2300000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2300000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":2400000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"}]}},"TemporaryEquityCarryingAmountAttributableToParent":{"label":"Temporary Equity, Carrying Amount, Attributable to Parent","description":"Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2014-12-31","val":2019000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2690000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":2690000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":2690000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2690000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":2690000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2689000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2689000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2689000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3192000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":3192000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":3192000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":3192000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":3192000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":3192000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3192000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3192000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5961000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":5961000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":5961000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":5961000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":5961000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":5300000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5183000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneLeverageCapital":{"label":"Banking Regulation, Tier One Leverage Capital, Actual","description":"Amount of Tier 1 leverage capital as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":108924000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":122786000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":122786000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":110532000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":110532000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":101263000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":101263000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":100920000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":100756000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":100002000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":122294000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":123325000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":124036000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":133453000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":138111000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":142186000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneLeverageCapitalRequiredForCapitalAdequacy":{"label":"Banking Regulation, Tier One Leverage Capital, Capital Adequacy, Minimum","description":"Amount of minimum Tier 1 leverage capital required for capital adequacy as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":62438000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":61210000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":61210000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":58650000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":58650000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":56943000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":56943000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":56943000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":56943000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":56943000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":57367000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":56546000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":56143000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":35690000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":35690000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":35690000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":35690000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":35690000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":53960000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":53052000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":52253000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":33427000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":33427000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":33427000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":33427000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":51193000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":51301000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":50769000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets":{"label":"Banking Regulation, Tier One Leverage Capital Ratio, Capital Adequacy, Minimum","description":"Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.04,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.04,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.04,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.04,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.04,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.04,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.04,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.04,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.04,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.04,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.04,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.04,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.04,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.04,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.04,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.04,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.04,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.04,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.04,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.04,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.04,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.04,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.04,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.04,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.04,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.04,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.04,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneLeverageCapitalToAverageAssets":{"label":"Banking Regulation, Tier One Leverage Capital Ratio, Actual","description":"Ratio of Tier 1 capital to average assets as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.0698,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.0802,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.0802,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.0754,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.0754,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.0711,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.0711,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.0711,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.0711,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.0711,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.0704,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.0713,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.0712,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.1201,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.1201,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.1201,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.1201,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.1201,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.0907,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.093,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.095,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.1018,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.1018,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.1018,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.1018,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.1043,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.1077,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.112,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneRiskBasedCapital":{"label":"Banking Regulation, Tier One Risk-Based Capital, Actual","description":"Amount of Tier 1 risk-based capital as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":108924000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":122786000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":122786000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":110532000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":110532000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":101263000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":101263000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":101263000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":100920000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":100756000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":100002000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":167290000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":122294000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":123325000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":124036000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":132900000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":133453000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":138111000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":142186000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneRiskBasedCapitalRequiredForCapitalAdequacy":{"label":"Banking Regulation, Tier One Risk-Based Capital, Capital Adequacy, Minimum","description":"Amount of minimum Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.","units":{"USD":[{"end":"2012-12-31","val":46021000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":41152000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":41152000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":36554000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":36554000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":54580000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":54580000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":54580000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":54580000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":54580000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":53288000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":53949000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":53562000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":53536000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":53536000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":53536000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":53536000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":53536000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":53704000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":51601000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":51191000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":50140000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":50140000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":50140000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":50140000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":51244000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":52115000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":51922000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets":{"label":"Banking Regulation, Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum","description":"Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.04,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.04,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.04,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.04,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.04,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.06,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.06,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.06,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.06,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.06,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.06,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.06,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.06,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.06,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.06,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.06,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.06,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.06,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.06,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.06,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.06,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.06,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.06,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.06,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.06,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.06,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.06,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.06,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TierOneRiskBasedCapitalToRiskWeightedAssets":{"label":"Banking Regulation, Tier One Risk-Based Capital Ratio, Actual","description":"Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.","units":{"pure":[{"end":"2012-12-31","val":0.0947,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.1193,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.1193,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0.121,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.121,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0.1113,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":0.1113,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0.1113,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.1113,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":0.1113,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":0.1136,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.1121,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.112,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.1875,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.1875,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"end":"2016-12-31","val":0.1875,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":0.1875,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"end":"2016-12-31","val":0.1875,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":0.1366,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.1434,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.1454,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.159,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0.159,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"end":"2017-12-31","val":0.159,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11"},{"end":"2017-12-31","val":0.159,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30"},{"end":"2018-03-31","val":0.1563,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.159,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.1643,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"TimeDepositMaturitiesAfterYearFive":{"label":"Time Deposit Maturities, after Year Five","description":"Amount of time deposit maturing after fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2017-12-31","val":5551000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDepositMaturitiesYearFive":{"label":"Time Deposit Maturities, Year Five","description":"Amount of time deposit maturing in fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":18687000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6506000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4002000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5658000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3157000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDepositMaturitiesYearFour":{"label":"Time Deposit Maturities, Year Four","description":"Amount of time deposit maturing in fourth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":27389000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11557000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":6910000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4464000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":5914000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDepositMaturitiesYearOne":{"label":"Time Deposit Maturities, Year One","description":"Amount of time deposit maturing in next fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2014-12-31","val":258732000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":227583000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":172435000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":133816000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDepositMaturitiesYearThree":{"label":"Time Deposit Maturities, Year Three","description":"Amount of time deposit maturing in third fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":38401000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":20644000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":13108000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":7435000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":5447000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDepositMaturitiesYearTwo":{"label":"Time Deposit Maturities, Year Two","description":"Amount of time deposit maturing in second fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":307514000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":39444000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":29119000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":24319000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":19260000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDeposits":{"label":"Time Deposits","description":"Amount of time deposit liabilities, including certificates of deposit.","units":{"USD":[{"end":"2013-12-31","val":408926000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":343161000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":286623000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":220241000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":173145000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"TimeDeposits100000OrMore":{"label":"Time Deposits, $100,000 or More","description":"Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more.","units":{"USD":[{"end":"2014-12-31","val":53693000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2015-12-31","val":39148000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":39148000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":39148000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":39148000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":39148000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":31526000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":33097000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":28214000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":28531000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":28531000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":25606000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"TimeDepositsNoncurrent":{"label":"Time Deposit Maturities, after Year One","description":"Amount of time deposit maturing after next fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":6278000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6278000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":5901000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5930000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"TransferOfOtherRealEstate":{"label":"Real Estate Owned, Transfer from Real Estate Owned","description":"Value transferred out of real estate owned (REO) in noncash transactions.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-24956000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":19329000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":19868000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-25163000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-1196000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-3402000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":3402000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":6886000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-10339000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-10708000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"start":"2012-01-01","end":"2012-03-31","val":-4152000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-23342000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-01-01","end":"2012-12-31","val":15024000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-15024000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":11160000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":11160000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-11160000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":11523000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":11523000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":11523000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1421000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2058000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-01-01","end":"2015-09-30","val":3958000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":3958000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3958000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3958000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":1543000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1543000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2885000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2885000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2944000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2944000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":5187000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5187000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":433000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":433000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":693000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":693000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2848000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2848000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":3035000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":473000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":721000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":1467000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"TransferOfPortfolioLoansAndLeasesToHeldForSale1":{"label":"Transfer of Portfolio Loans and Leases to Held-for-sale","description":"Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-09-30","val":11860000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":11860000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":11860000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":11860000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":16248000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":16248000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-394000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":7163000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":6815000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"TransferToOtherRealEstate":{"label":"Real Estate Owned, Transfer to Real Estate Owned","description":"Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":15024000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":11160000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":11160000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":11523000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":11523000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2015-01-01","end":"2015-03-31","val":1421000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2058000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":637000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":3958000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":1900000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3958000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":3958000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1543000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1543000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2885000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":2885000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":1342000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":1342000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":2944000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":2944000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":59000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":59000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":5187000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5187000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":433000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":433000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":693000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":693000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":260000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":260000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":2848000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":2848000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":2154000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":2154000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":3035000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":473000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":721000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":248000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1467000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":746000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"TreasuryStockShares":{"label":"Treasury Stock, Shares","description":"Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.","units":{"shares":[{"end":"2010-12-31","val":407074,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":407074,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":407074,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":407074,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":407074,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":407074,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":407074,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":407074,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":407074,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":407074,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":407074,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":407074,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":407074,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":403751,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":403751,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":364998,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":364998,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":364998,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":364998,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":364998,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":330498,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":330498,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":330498,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"TreasuryStockValue":{"label":"Treasury Stock, Value","description":"The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.","units":{"USD":[{"end":"2010-12-31","val":10974000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":10974000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":10974000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":10974000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10974000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10974000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q4I"},{"end":"2011-12-31","val":10974000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":10974000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-03-31","val":10974000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10974000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":10974000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10974000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":10974000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":10888000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":10888000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":9880000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":9880000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":9880000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2015-12-31","val":9880000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":9880000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":8983000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8983000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8983000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016Q4I"}]}},"TreasuryStockValueAcquiredCostMethod":{"label":"Treasury Stock, Value, Acquired, Cost Method","description":"Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-473000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-9000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued","description":"Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017Q4I"}]}},"ValuationAllowanceDeferredTaxAssetChangeInAmount":{"label":"Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount","description":"Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-10625000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":241000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":241000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":-489000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-489000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-489000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":-36000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-36000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":-36000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-12-31","val":13676000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":13676000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":739000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":739000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":-978000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":-978000,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-1081000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":-1081000,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":-3836000,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-215000,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-398000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-09-30","val":-1451000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns":{"label":"Valuation Allowance for Impairment of Recognized Servicing Assets, Deductions for Aggregate Write-Downs","description":"Amount of decrease in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from write-downs charged against the allowance.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":-128000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-128000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-2095000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-808000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-793000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":1374000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1374000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":1569000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1569000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-1569000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1369000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1369000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1369000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":969000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":969000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1852000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":883000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2522000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2522000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1060000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":1060000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1660000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":600000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1660000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1660000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":29000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance":{"label":"Valuation Allowance for Impairment of Recognized Servicing Assets, Balance","description":"Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.","units":{"USD":[{"end":"2010-12-31","val":-1070000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2010Q4I"},{"end":"2010-12-31","val":-1070000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2011-03-31","val":-990000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q1I"},{"end":"2011-06-30","val":-1118000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2I"},{"end":"2011-12-31","val":2938000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":-2938000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2011-12-31","val":-2938000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"end":"2012-03-31","val":-2379000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-3172000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-12-31","val":3342000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3342000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2012-12-31","val":-3342000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":2021000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2013-12-31","val":2021000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2013-12-31","val":-2021000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"end":"2013-12-31","val":2021000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2017000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2014-12-31","val":2017000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2014-12-31","val":2017000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"end":"2014-12-31","val":2017000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2017000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2014-12-31","val":2017000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-03-31","val":2388000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-03-31","val":2388000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1602000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q2I"},{"end":"2015-06-30","val":1602000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2015-09-30","val":2485000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1895000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2015-12-31","val":1895000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"end":"2015-12-31","val":1895000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1895000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2015-12-31","val":1895000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2015-12-31","val":1895000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-03-31","val":2745000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"end":"2016-03-31","val":2745000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1I"},{"end":"2016-03-31","val":2745000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-06-30","val":3104000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q2I"},{"end":"2016-06-30","val":3104000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"end":"2016-09-30","val":2678000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3I"},{"end":"2016-12-31","val":998000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q4I"},{"end":"2016-12-31","val":998000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"end":"2017-03-31","val":937000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1I"}]}},"ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease":{"label":"Valuation Allowance for Impairment of Recognized Servicing Assets, Period Increase (Decrease)","description":"The net increase (decrease) in the valuation allowance for servicing assets subsequently measured using the amortization method.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-759000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":359000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":1307000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":192000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-80000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":48000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":1488000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":1868000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-559000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":234000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"}]}},"ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries":{"label":"Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries)","description":"Amount of increase (decrease) in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from expenses (recoveries) recognized.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":227000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":970000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":970000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":2890000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2890000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":2890000,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":1373000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":1373000,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":1373000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":598000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1384000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":786000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1384000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2644000,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":2644000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":210000,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":210000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":451000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":241000,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":877000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":426000,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2557000,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":90000,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2017Q1"}]}},"VentureCapitalGainsLossesNet":{"label":"Venture Capital Gain (Loss), Net","description":"Amount of gain (loss) on venture capital activities. Includes venture capital revenue, fair value adjustments, interest and dividends, investment gain (loss) and fee or other income from venture capital activities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-286000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":98000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2010-01-01","end":"2010-09-30","val":99000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-01-01","end":"2010-12-31","val":-554000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":225000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-225000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-01-01","end":"2011-06-30","val":354000,"accn":"0000099771-11-000025","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":457000,"accn":"0000099771-11-000032","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-521000,"accn":"0000099771-12-000004","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":229000,"accn":"0000099771-12-000016","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-233000,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2017-01-01","end":"2017-06-30","val":-21000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-04-01","end":"2017-06-30","val":21000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-21000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":735000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":735000,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":735000,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"WeightedAverageNumberOfDilutedSharesOutstanding":{"label":"Weighted Average Number of Shares Outstanding, Diluted","description":"The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":6445542,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":6445542,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2012-01-01","end":"2012-06-30","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":6449726,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":6449726,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6449726,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6465564,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":6476483,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":6487049,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":6480886,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":6489547,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":6524786,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":6524786,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6525544,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6525544,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":6526302,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":6526302,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":6525798,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":6525798,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":6526302,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":6526302,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":6934608,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6934608,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":17552823,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":17552823,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":17122148,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":19710676,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":19847781,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":19871575,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":19930757,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":19957651,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased":{"label":"Weighted Average Number of Shares, Employee Stock Ownership Plan Shares Not Committed to be Released","description":"Number of employee stock ownership plan (ESOP) shares that have not been committed to be released determined by relating the portion of time within a reporting period that these shares have been outstanding to the total time in that period.","units":{"shares":[{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2016Q1"}]}},"WeightedAverageNumberOfSharesIssuedBasic":{"label":"Weighted Average Number of Shares Issued, Basic","description":"This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":6856800,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":6856800,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":6856800,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":6856800,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":6856800,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6856800,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":6856800,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":6856800,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":6856800,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":6856800,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6856800,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6856800,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":6856800,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":6856800,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":6856800,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":6856800,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6856800,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":6856800,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":6856800,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":6856800,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":6856800,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":6856800,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":6939747,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6939747,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":17539689,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":17539689,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":17088808,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":19665543,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":19677809,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":19689941,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":19685998,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":19702110,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"WeightedAverageNumberOfSharesOutstandingBasic":{"label":"Weighted Average Number of Shares Outstanding, Basic","description":"Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":6445542,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":6445542,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":6449726,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":6449726,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":6449726,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":6449726,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":6449726,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6449726,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":6449726,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":6452557,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6465564,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":6476483,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":6487049,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":6480886,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":6489547,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":6483637,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":6524786,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":6524786,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6525544,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":6525544,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":6526302,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":6526302,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":6525798,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":6525798,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":6526302,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":6526302,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":6620611,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6620611,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":13017045,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":14685239,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":17535821,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":15647178,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":17539689,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":17539689,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":17088808,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":19665543,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":19677809,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":19689941,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":19685998,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":19702110,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}},"WeightedAverageNumberOfSharesTreasuryStock":{"label":"Weighted Average Number of Shares, Treasury Stock","description":"Number of shares of treasury stock determined by relating the portion of time within a reporting period that treasury shares have been outstanding to the total time in that period. Treasury stock is stock that the Entity has issued but subsequently reacquired.","units":{"shares":[{"start":"2011-01-01","end":"2011-06-30","val":-411258,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":-411258,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-407074,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-407074,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07"},{"start":"2012-04-01","end":"2012-06-30","val":-407074,"accn":"0000099771-12-000029","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-09-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-407074,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-407074,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2013-01-01","end":"2013-12-31","val":407074,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-407074,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":-407074,"accn":"0001140361-14-045128","fy":2013,"fp":"FY","form":"10-K","filed":"2014-12-12"},{"start":"2014-01-01","end":"2014-12-31","val":404243,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":-404243,"accn":"0001140361-16-064109","fy":2014,"fp":"FY","form":"10-K","filed":"2016-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":404243,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":391236,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":380317,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2015-04-01","end":"2015-06-30","val":369751,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":375914,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2015-07-01","end":"2015-09-30","val":367253,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":373163,"accn":"0001140361-16-084212","fy":2015,"fp":"FY","form":"10-K","filed":"2016-10-31"},{"start":"2015-01-01","end":"2015-12-31","val":373163,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":373163,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2016-01-01","end":"2016-03-31","val":332014,"accn":"0001140361-16-090606","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-12-22"},{"start":"2016-01-01","end":"2016-03-31","val":332014,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":331256,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2016-01-01","end":"2016-06-30","val":331256,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-04-01","end":"2016-06-30","val":330498,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":330498,"accn":"0000099771-17-000037","fy":2016,"fp":"Q2","form":"10-Q","filed":"2017-02-14"},{"start":"2016-01-01","end":"2016-09-30","val":331002,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2016-01-01","end":"2016-09-30","val":331002,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-07-01","end":"2016-09-30","val":330498,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":330498,"accn":"0000099771-17-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":319136,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":319136,"accn":"0000099771-17-000061","fy":2016,"fp":"FY","form":"10-K","filed":"2017-04-14"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000099771-17-000084","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-15"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000099771-17-000135","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000099771-17-000172","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000099771-18-000032","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-30","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000099771-18-000042","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-11","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000099771-18-000071","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000099771-18-000093","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"}]}}}}}