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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":956864000,"accn":"0001193125-11-164870","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2011-06-14"},{"end":"2010-12-31","val":956864000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"end":"2010-12-31","val":956864000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":956864000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2010Q4I"},{"end":"2011-03-31","val":953887000,"accn":"0001193125-11-164870","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2011-06-14","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1133651000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1135238000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1135880000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01"},{"end":"2011-12-31","val":1135880000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":1135880000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"end":"2011-12-31","val":1135880000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":1135880000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1131496000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1132842000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1173876000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1176180000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1176180000,"accn":"0001193125-13-214278","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"end":"2012-12-31","val":1176180000,"accn":"0001193125-13-327105","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1176180000,"accn":"0001193125-13-438163","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"end":"2012-12-31","val":1176180000,"accn":"0001193125-14-076928","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1169421000,"accn":"0001193125-13-214278","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1172359000,"accn":"0001193125-13-327105","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1175197000,"accn":"0001193125-13-438163","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1178284000,"accn":"0001193125-14-076928","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":1178284000,"accn":"0001193125-14-192434","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1178284000,"accn":"0001193125-14-303228","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1178284000,"accn":"0001193125-14-405715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10"},{"end":"2013-12-31","val":1178284000,"accn":"0001193125-15-073184","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-02","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1177145000,"accn":"0001193125-14-192434","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1391097000,"accn":"0001193125-14-303228","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1394618000,"accn":"0001193125-14-405715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1398633000,"accn":"0001193125-15-073184","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-02","frame":"CY2014Q4I"}]}},"AdditionalPaidInCapitalCommonStock":{"label":"Additional Paid in Capital, Common Stock","description":"Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in 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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 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This element refers to the gain (loss) and not to the cash proceeds of the sale. 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held-to-maturity.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":6735000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":982000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2010-04-01","end":"2010-06-30","val":60000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":5158000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":4176000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":5172000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":5172000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":1000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1427000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2011-01-01","end":"2011-06-30","val":1427000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":1426000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1426000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2011-01-01","end":"2011-09-30","val":2633000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-09-30","val":2633000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":1206000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":1206000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-12-31","end":"2011-12-31","val":3422000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011"},{"start":"2010-12-31","end":"2011-12-31","val":3422000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":3422000,"accn":"0001193125-14-076928","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":2800000,"accn":"0001193125-13-214278","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":2800000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"start":"2012-01-01","end":"2012-06-30","val":3702000,"accn":"0001193125-13-327105","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":3702000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":901000,"accn":"0001193125-13-327105","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":901000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":3743000,"accn":"0001193125-13-438163","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"start":"2012-01-01","end":"2012-09-30","val":3743000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":41000,"accn":"0001193125-13-438163","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":41000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":3739000,"accn":"0001193125-14-076928","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3739000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":2328000,"accn":"0001193125-14-192434","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":2328000,"accn":"0001193125-13-214278","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"start":"2013-01-01","end":"2013-06-30","val":2261000,"accn":"00011931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(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":"2008-12-31","end":"2009-12-31","val":35108000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":7373000,"accn":"0001193125-11-164870","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2011-06-14","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":17999000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2010-04-01","end":"2010-06-30","val":10625000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":31517000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-07-01","end":"2010-09-30","val":13518000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":47689000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":8892000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":8892000,"accn":"0001193125-11-164870","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2011-06-14"},{"start":"2011-01-01","end":"2011-06-30","val":18281000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2011-01-01","end":"2011-06-30","val":18281000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2011-04-01","end":"2011-06-30","val":9389000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":9389000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2011-01-01","end":"2011-09-30","val":31719000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-09-30","val":31719000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":13438000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":13438000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2010-12-31","end":"2011-12-31","val":44892000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":13619000,"accn":"0001193125-12-225897","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":31697000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":18078000,"accn":"0001193125-12-346695","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":54782000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":23085000,"accn":"0001193125-12-463068","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3"}]}},"GainOnPurchaseOfBusiness":{"label":"Gain on Purchase of Business (Deprecated 2013-01-31)","description":"Amount of the excess of the fair value of acquired net assets over the cost of an acquired business after pro rata reduction of the amounts that otherwise would have been assigned to acquired assets except financial assets other than investments accounted for by the equity method, assets to be disposed of by sale, deferred tax assets, prepaid assets relating to pension and postretirement benefit plans, and other current assets. This amount is considered an extraordinary item and often referred to as negative goodwill. This element is gross of the related tax effect.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":238893000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":3781000,"accn":"0001193125-11-164870","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2011-06-14","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":3781000,"accn":"0001193125-11-242298","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-07"},{"start":"2010-01-01","end":"2010-09-30","val":3781000,"accn":"0001193125-11-304318","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"start":"2009-12-31","end":"2010-12-31","val":3781000,"accn":"0001193125-13-086692","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":3781000,"accn":"0001193125-12-091825","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-01"}]}},"GainOnSaleOfInvestments":{"label":"Gain on Sale of Investments","description":"The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the 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ure":{"label":"Financial 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This element is used when state law does not recognize treasury stock.","units":{"shares":[{"end":"2016-05-04","val":202506,"accn":"0001628280-16-018627","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q1I"},{"start":"2016-04-01","end":"2016-06-30","val":202506,"accn":"0001628280-16-020954","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-07"},{"start":"2016-04-01","end":"2016-06-30","val":202506,"accn":"0001628280-17-001492","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-21","frame":"CY2016Q2"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0001628280-16-020954","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-07","frame":"CY2016Q3"}]}},"StockRepurchasedDuringPeriodValue":{"label":"Stock Repurchased During Period, Value","description":"Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury 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