{"cik":819689,"entityName":"MICRON SOLUTIONS INC /DE/","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":"2011-08-07","val":2790514,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-11-07","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2012-03-24","val":2790514,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2012Q1I"},{"end":"2012-05-07","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2012-08-10","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-11-10","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2013-05-30","val":2704239,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-06-27","val":2704239,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q2I"},{"end":"2013-10-03","val":2704239,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q3I"},{"end":"2013-11-18","val":2704239,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q4I"},{"end":"2014-03-21","val":2722239,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2014Q1I"},{"end":"2014-05-09","val":2722239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-08-08","val":2731839,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-11-12","val":2757339,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2015-03-20","val":2779439,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2015Q1I"},{"end":"2015-05-13","val":2779439,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2015-08-13","val":2786539,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-11-12","val":2792539,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2016-03-10","val":2816639,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2016Q1I"},{"end":"2016-05-12","val":2816639,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-08-11","val":2816639,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-11-09","val":2816639,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2017-03-22","val":2820999,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2017Q1I"},{"end":"2017-05-10","val":2820999,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2017-08-11","val":2820999,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-11-10","val":2833153,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2018-03-26","val":2844935,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2018Q1I"},{"end":"2018-05-14","val":2844935,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2018-08-13","val":2850177,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-11-09","val":2855921,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2019-03-18","val":2872208,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2019Q1I"},{"end":"2019-05-14","val":2872208,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2019-08-13","val":2883189,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-11-13","val":2895362,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2020-03-20","val":2906609,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2020Q1I"}]}},"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":"2011-06-30","val":10156829,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011Q2I"},{"end":"2012-06-30","val":7130193,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q2I"},{"end":"2013-06-28","val":6548635,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-06-28","val":16472399,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q2I"},{"end":"2015-06-30","val":17471600,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q2I"},{"end":"2016-06-30","val":17660327,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q2I"},{"end":"2017-06-30","val":10867502,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q2I"},{"end":"2018-06-30","val":9260225,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q2I"},{"end":"2019-06-30","val":7063813,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q2I"}]}}},"us-gaap":{"AccountsAndOtherReceivablesNetCurrent":{"label":"Accounts and Other Receivables, Net, Current","description":"Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2016-06-30","val":258842,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"}]}},"AccountsPayableCurrent":{"label":"Accounts Payable, Current","description":"Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2010-12-31","val":2280992,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":2280992,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":2280992,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1179937,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2016804,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2327114,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":2327114,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":2327114,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":2128447,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":2128447,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3249661,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2589149,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2534110,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2437778,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2437778,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":2437778,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":2437778,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":2437778,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2412837,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2225785,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2540359,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2156031,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2156031,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2156031,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2156031,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":2156031,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2121539,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1758083,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2234735,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1857156,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":1857156,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":1857156,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":1857156,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":1857156,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2268833,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2182438,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1876542,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1553388,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":1553388,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1553388,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1553388,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1553388,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1671531,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1738955,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1964666,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1744261,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":1744261,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":1744261,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":1744261,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":1744261,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2076887,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2611071,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1711661,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1534349,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":1534349,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":1534349,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":1534349,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":1534349,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1378648,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1326070,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1530662,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1200298,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1200298,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1200298,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1200298,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1200298,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1009687,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":869761,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":611767,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":841068,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"USD":[{"end":"2010-12-31","val":3819361,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":3819361,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":3819361,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3918945,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4811442,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3501744,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":3501744,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":3501744,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":3460369,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3460369,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4325994,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2806265,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3221221,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3181721,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":3181721,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":3181721,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":3181721,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":3181721,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3156881,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3298437,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2541889,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3803853,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":3803853,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":3803853,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":3803853,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":3803853,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4046038,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3876966,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3709782,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3536747,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":3536747,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":3536747,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":3536747,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":3536747,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4010069,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4357896,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3404786,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2798353,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":2798353,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2798353,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":2798353,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":2798353,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3339549,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2722023,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2367370,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2276608,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":2276608,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":2276608,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":2276608,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":2276608,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3241771,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3441272,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2898677,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2595248,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":2595248,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":2595248,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":2595248,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":2595248,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3091572,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3052691,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2929717,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2325804,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":2325804,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":2325804,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":2325804,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":2325804,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2767238,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2284732,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2379496,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2152254,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2010-12-31","val":275197,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":275197,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":265649,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":451727,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":715479,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":331929,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":331929,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":564479,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":513131,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":280576,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":420949,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":458810,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":393631,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":393913,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":393913,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":393913,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":393913,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":393913,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":653054,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":775765,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":619756,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":436775,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":436775,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":405975,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"}]}},"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":"2010-12-31","val":9101732,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":9101732,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9696226,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":9989038,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10393560,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":10393590,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":10168679,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":-10168682,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10385220,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10874978,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10737157,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-11080019,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":-11080019,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":-11080019,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":-11080019,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":11080019,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":-11408053,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-11769205,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-12071369,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":12249509,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":12249509,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":12249509,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":12249509,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":12249509,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":12627024,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":12832478,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13200996,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":13561532,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":13561532,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":13561532,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":13561532,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":13561532,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":13741025,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":14096523,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":14406796,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":14731169,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":14731169,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":14731169,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":14731169,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":14731169,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":15092170,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":15396007,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":15802128,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":16190694,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":16190694,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":16190694,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":16190694,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":16190694,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":16257720,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":16664482,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":16990560,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":17391414,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":17391414,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":17391414,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":17391414,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":17391414,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":17786201,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":18157110,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":18208213,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":18545243,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":18545243,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":18545243,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":18545243,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":18545243,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":18918857,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":19291002,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":19560887,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":19914900,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax","description":"Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.","units":{"USD":[{"end":"2010-12-31","val":42502,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":42502,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":42502,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":66192,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":51849,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":42502,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":42502,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":42502,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":42502,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-06-30","val":42502,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":42502,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":42502,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":42502,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":42502,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":42502,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":42502,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":42502,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":42502,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":42502,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":42502,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":42502,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":42502,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":42502,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":42502,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":42502,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":42502,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":42502,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":42502,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":42502,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":42502,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":42502,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":42502,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":42502,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"}]}},"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":10653210,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":10653210,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":10653210,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":10715074,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10738595,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10762338,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":10762338,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":10762338,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":10762338,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":10762338,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10799858,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10826840,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10846988,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":11110575,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":11110575,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":11110575,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":11110575,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":11110575,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":11124821,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":11138321,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":11151221,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":11236236,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":11236236,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":11236236,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":11236236,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":11236236,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":11247486,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":11282665,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":11308105,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":11336693,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":11336693,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":11336693,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":11336693,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":11336693,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":11344707,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":11361959,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":11365486,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":11381536,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":11381536,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":11381536,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":11381536,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":11381536,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":11406887,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":11422345,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":11426837,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":11457320,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":11457320,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":11457320,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":11457320,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":11457320,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":11471643,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":11489089,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11508256,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":11532207,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":11532207,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":11532207,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":11532207,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":11532207,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11551004,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":11565392,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11577322,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":11604817,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":11604817,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":11604817,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":11604817,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":11604817,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":11632117,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":11692388,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":11715002,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":11735457,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AdjustmentForAmortization":{"label":"Amortization","description":"The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-4467,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-4467,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":122,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":994,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":994,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1998,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":994,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":66067,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":2982,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":57231,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":994,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":994,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":994,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1988,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":1988,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":994,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":994,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2796,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":2796,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":808,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":808,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":439,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":879,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":440,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1318,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":439,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"AdjustmentsToAdditionalPaidInCapitalMarkToMarket":{"label":"Adjustments to Additional Paid in Capital, Fair Value","description":"Amount of increase (decrease) to additional paid in capital (APIC) resulting from changes in fair value of common and preferred stock issued to employee benefit trust but unearned.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":18310,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":18310,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"}]}},"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":"2014-01-01","end":"2014-12-31","val":33390,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":47256,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":47256,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":48129,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":48129,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":14370,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":14370,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-03-31","val":14370,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q1"},{"start":"2018-04-01","end":"2018-06-30","val":8817,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":8817,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q2"},{"start":"2018-07-01","end":"2018-09-30","val":7729,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":56168,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":56168,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":29862,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2019-01-01","end":"2019-03-31","val":29862,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-03-31","val":29862,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q1"},{"start":"2019-04-01","end":"2019-06-30","val":30000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":30000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2"},{"start":"2019-07-01","end":"2019-09-30","val":24250,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":108716,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"AdjustmentsToAdditionalPaidInCapitalWarrantIssued":{"label":"Adjustments to Additional Paid in Capital, Warrant Issued","description":"Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants.","units":{"USD":[{"start":"2019-04-01","end":"2019-06-30","val":32236,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":32236,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2"},{"start":"2019-07-01","end":"2019-09-30","val":3582,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":35818,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2013-09-30","val":40646,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":105071,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":11250,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":26548,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":22186,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":22186,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":33390,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":33390,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7186,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":7186,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":19888,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":19888,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":23416,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":23416,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":15133,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":30591,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":35083,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":47256,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"AllowanceForDoubtfulAccountsReceivableCurrent":{"label":"Accounts Receivable, Allowance for Credit Loss, Current","description":"Amount of allowance for credit loss on accounts receivable, classified as current.","units":{"USD":[{"end":"2010-12-31","val":83976,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":83976,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":83976,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":29298,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":43496,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":58496,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":58496,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":58496,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":58496,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":58496,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":83996,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":109496,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":103496,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":117098,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":117098,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":117098,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":117098,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":117098,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":117098,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":40000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":40000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":40000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":40000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":40000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":40000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":40000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":40000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":50000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":50000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":45000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":45000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":45000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":45000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":45000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":48000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":48000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":48000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":60000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":60000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":60000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":60000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":60000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":60000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":30000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":30000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":30000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":30000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":30000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":30000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":30000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":36000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":42000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":46000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":40000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":40000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":40000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":40000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":40000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":40000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":40000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":40000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":40000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":40000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":40000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":40000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":40000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":39169,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":39169,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":39169,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":39169,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease":{"label":"Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)","description":"Amount of increase (decrease) in allowance for credit loss on accounts receivable.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":-77098,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-77098,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-77098,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":10000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":10000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":10000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":10000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":5000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":5000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":3000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":3000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":3000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":3000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":15000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":15000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-30000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-30000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":-30000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"AmortizationOfDebtDiscountPremium":{"label":"Amortization of Debt Discount (Premium)","description":"Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.","units":{"USD":[{"start":"2015-01-01","end":"2015-06-30","val":13842,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":6921,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":20763,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":6921,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":6921,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":13842,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":6921,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":6921,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":20763,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":20763,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":6921,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":6727,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":27186,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":2218,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":6146,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":6921,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":2218,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":17989,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":17989,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":5970,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2013-01-01","end":"2013-12-31","val":4840,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":3974,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":3974,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3235,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":3235,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":439,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2013,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":1006,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1318,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":439,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1757,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1757,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":439,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":439,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":987,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":986,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":547,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":547,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1588,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":602,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2496,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2496,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":602,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1909,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":933,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-12-31","val":4639,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":4639,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":5646,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"AreaOfRealEstateProperty":{"label":"Area of Real Estate Property","description":"Area of a real estate property.","units":{"sqft":[{"end":"2016-01-31","val":52000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-01-31","val":52000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-01-31","val":52000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-01-31","val":52000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2016-01-31","val":52000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2016-01-31","val":52000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2016-01-31","val":52000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2016-01-31","val":52000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2016-01-31","val":52000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2016-01-31","val":52000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2015Q4I"}]}},"AssetImpairmentCharges":{"label":"Asset Impairment Charges","description":"Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":24065,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":153079,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1063321,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"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":20329496,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":20329496,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":20287996,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":19150609,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":20017041,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":19227431,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":19476088,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":19887615,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19364280,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":17632493,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":17085642,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":15615062,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":15461068,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":16528605,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15794431,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":15626012,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":15579975,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":15879533,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":14854530,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":13336105,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":13873461,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":14498779,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":13927885,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":14824854,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":14784171,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":14039147,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":13027320,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12926731,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":13266445,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":12631628,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":10758626,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9501394,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":8734334,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AssetsCurrent":{"label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). 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":11458696,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":11458696,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":11417196,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":10744497,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10868195,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":9010271,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":9010271,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":9010271,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":9010271,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":9170950,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":9632253,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":8334194,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":7962690,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7078177,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":7078177,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":7078177,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":7078177,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":7078177,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7106207,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":7702526,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":7473559,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":8403616,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":8403616,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":8403616,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":8403616,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":8403616,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":8585351,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7823922,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7831084,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":6779968,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":6779968,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":6779968,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":6779968,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":6779968,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7544006,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7729353,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6922355,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":5803485,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":5803485,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":5803485,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":5803485,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":5783072,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":6312448,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6758128,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6463542,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6331436,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":6331436,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":6331436,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":6331436,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":6331436,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":7437342,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7643809,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7193943,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7426389,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":7426389,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":7426389,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":7426389,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":7426389,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":6757229,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":6944317,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":7285048,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":7090718,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":7090718,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":7090718,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":7090718,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":7090718,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":7742262,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":6219675,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":5298599,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":4879264,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AssetsHeldForSaleNotPartOfDisposalGroup":{"label":"Assets Held-for-sale, Not Part of Disposal Group","description":"Amount of assets held-for-sale that are not part of a disposal group.","units":{"USD":[{"end":"2015-12-31","val":665000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":665000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":665000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":665000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2015-12-31","val":665000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2015Q4I"},{"end":"2016-03-31","val":665000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":665000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":665000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":688750,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":688750,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":688750,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":688750,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":688750,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":688750,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":688750,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":688750,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":688750,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":688750,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":688750,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":688750,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":688750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":688750,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":688750,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":688750,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"}]}},"AssetsHeldForSaleNotPartOfDisposalGroupCurrent":{"label":"Assets Held-for-sale, Not Part of Disposal Group, Current","description":"Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2017-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":688750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":688750,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":688750,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":688750,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":688750,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":688750,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":688750,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperation":{"label":"Disposal Group, Including Discontinued Operation, Assets","description":"Amount classified as assets attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":1162329,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":1265301,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-09-30","val":594888,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":318601,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":318601,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":318601,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":318601,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":318601,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":269465,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2495,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4285,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1509,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent":{"label":"Disposal Group, Including Discontinued Operation, Assets, Current","description":"Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":215968,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":318940,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-09-30","val":303485,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":34301,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":34301,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":34301,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":34301,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":34301,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":22730,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2495,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4285,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1509,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrent":{"label":"Assets of Disposal Group, Including Discontinued Operation, Noncurrent (Deprecated 2014-01-31)","description":"The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for noncurrent assets (assets with expected useful life longer than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement date.","units":{"USD":[{"end":"2011-12-31","val":946361,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":946361,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":291403,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":284300,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":246735,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"BuildingsAndImprovementsGross":{"label":"Buildings and Improvements, Gross","description":"Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.","units":{"USD":[{"end":"2011-12-31","val":4158921,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4293725,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":4293725,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":4293725,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":4293725,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":4293725,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4293725,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4293725,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4298556,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4303156,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":4303156,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4303156,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":4303156,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":4303156,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4303156,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4357247,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4360114,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4360114,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":4360114,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":4360114,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":4360114,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":4360114,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4360114,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4499899,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4508706,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3978387,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3978387,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3978387,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":3978387,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3978387,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3978387,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3986715,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"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":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2012-03-31","val":105384,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":261950,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":264484,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"}]}},"CapitalLeaseObligationsNoncurrent":{"label":"Capital Lease Obligations, Noncurrent","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 and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2012-06-30","val":1126020,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1058941,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"}]}},"Cash":{"label":"Cash","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. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2010-12-31","val":3962454,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2011Q4I"},{"end":"2012-12-31","val":508590,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":508590,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2012-12-31","val":508590,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2012-12-31","val":508590,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2012-12-31","val":508590,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2012-12-31","val":508590,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2012Q4I"},{"end":"2013-03-31","val":341494,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":315407,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":460102,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":751275,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":751275,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":751275,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":751275,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":751275,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2013-12-31","val":751275,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2013-12-31","val":751275,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2013-12-31","val":751275,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2013-12-31","val":751275,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2013Q4I"},{"end":"2014-03-31","val":297248,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-03-31","val":297248,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1I"},{"end":"2014-06-30","val":232024,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2014-06-30","val":232024,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2I"},{"end":"2014-09-30","val":329240,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2014-09-30","val":329240,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":209398,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2014-12-31","val":209398,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2014-12-31","val":209398,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2014-12-31","val":209398,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2014-12-31","val":209398,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2014Q4I"},{"end":"2015-03-31","val":391382,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2015-03-31","val":391382,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":284774,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2015-06-30","val":284774,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2I"},{"end":"2015-09-30","val":263838,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2015-09-30","val":263838,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3I"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":272291,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2015-12-31","val":272291,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2015-12-31","val":272291,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2015-12-31","val":272291,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2015Q4I"},{"end":"2016-03-31","val":220299,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-03-31","val":220299,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":526294,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2016-06-30","val":526294,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":206619,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2016-09-30","val":237019,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3I"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q4I"},{"end":"2017-03-31","val":265142,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":338069,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":524606,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"}]}},"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":"2009-12-31","val":3674179,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2009-12-31","val":3674179,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2009-12-31","val":3674179,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2009Q4I"},{"end":"2010-06-30","val":2838872,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2I"},{"end":"2010-09-30","val":3139546,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3I"},{"end":"2010-12-31","val":3962454,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":3962454,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":3962454,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2010-12-31","val":3962454,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2010-12-31","val":3962454,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2010-12-31","val":3796637,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2010Q4I"},{"end":"2011-03-31","val":2447436,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3561581,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":3561581,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2445115,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2011-09-30","val":2259542,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":1255251,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2011-12-31","val":1358223,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2011Q4I"},{"end":"2012-03-31","val":485781,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2012-03-31","val":485781,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-03-31","val":353415,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q1I"},{"end":"2012-06-30","val":353416,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":278377,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":350398,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3I"},{"end":"2012-12-31","val":477708,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":508590,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":508590,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":508590,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":477708,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":341494,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2013-03-31","val":319991,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":315407,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2013-06-30","val":312912,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":460102,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2013-09-30","val":455817,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":749766,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":749766,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":749766,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":749766,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":749766,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":297248,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-03-31","val":297248,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1I"},{"end":"2014-06-30","val":232024,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2014-06-30","val":232024,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2I"},{"end":"2014-09-30","val":329240,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2014-09-30","val":329240,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":209398,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":209398,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":391382,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":284774,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":263838,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":272291,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":272291,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":220299,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":526294,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":206619,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":380381,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":380381,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":265142,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":338069,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":524606,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":606988,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":606988,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":606988,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":606988,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":606988,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":13965,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-09-30","val":2840,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1715,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1684,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":503,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":503,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":503,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2010-01-01","end":"2010-06-30","val":-835307,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":-534633,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":288275,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-1515018,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-400873,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-400873,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-1517339,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-1537095,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-2604231,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-2604231,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-872442,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-872442,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1004807,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-1004808,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-1007825,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-1007825,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-849633,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-849633,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-167096,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-167096,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-193183,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-193183,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-48488,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-48488,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":242685,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":242685,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-454027,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-454027,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-519251,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-519251,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-422035,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-422035,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-541877,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-541877,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":181984,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":181984,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":75376,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":75376,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":54440,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":54440,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":62893,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":62893,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-51992,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-51992,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":254003,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":254003,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-65672,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-35272,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":108090,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":108090,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-115239,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-42312,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":144225,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":576607,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. 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. Cash equivalents include, but are not limited to, 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.","units":{"USD":[{"end":"2015-12-31","val":272291,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2015Q4I"},{"end":"2016-12-31","val":380381,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2016-12-31","val":380381,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2016-12-31","val":380381,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2016-12-31","val":380381,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2016-12-31","val":380381,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2016Q4I"},{"end":"2017-03-31","val":265142,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":338069,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":524606,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":956988,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":956988,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":956988,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":956988,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":956988,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2017-12-31","val":956988,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2017-12-31","val":956988,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2017-12-31","val":956988,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2017-12-31","val":956988,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":13965,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2018-03-31","val":13965,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1I"},{"end":"2018-09-30","val":2840,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2018-09-30","val":2840,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1715,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1715,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1684,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":503,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":503,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":503,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect","description":"Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. 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. Cash equivalents include, but are not limited to, 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.","units":{"USD":[{"start":"2017-01-01","end":"2017-03-31","val":-115239,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-42312,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":144225,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":576607,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-943023,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-943023,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-956988,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-956988,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":-954148,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-954148,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-955273,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-955273,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-31,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-1212,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":-1212,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-1212,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Financing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of financing activities of 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":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":672272,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":631897,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":631897,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-41183,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-41183,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-55002,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-55002,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of 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":"2011-09-30","val":-172907,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-280364,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-425898,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-516602,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-484481,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-484481,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-466230,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-466230,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":78814,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":78814,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":320518,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":320518,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":284300,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":284300,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":247992,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":247992,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of 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":"2011-09-30","val":-1307065,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-1706508,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-632745,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1766502,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-2514592,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-2514591,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-1796143,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-1796143,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-46178,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-46178,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-310301,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-310301,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-277215,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-277215,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-277365,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-277365,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-1509,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-1509,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-1509,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-1509,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-1509,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-1509,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1509,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-1509,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1":{"label":"Class of Warrant or Right, Exercise Price of Warrants or Rights","description":"Exercise price per share or per unit of warrants or rights outstanding.","units":{"USD/shares":[{"end":"2015-12-31","val":3.51,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2016-12-31","val":3.51,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3.51,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3.51,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3.51,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2019-06-28","val":2.9,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2019-06-28","val":2.9,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2019-06-28","val":2.9,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q2I"},{"end":"2019-07-05","val":2.9,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2019-07-05","val":2.9,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30"}]}},"ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights":{"label":"Class of Warrant or Right, Number of Securities Called by Warrants or Rights","description":"Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.","units":{"shares":[{"end":"2013-12-31","val":100000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2013-12-31","val":100000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2013Q4I"},{"end":"2016-12-31","val":100000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":100000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":100000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":100000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":100000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"}]}},"ClassOfWarrantOrRightOutstanding":{"label":"Class of Warrant or Right, Outstanding","description":"Number of warrants or rights outstanding.","units":{"shares":[{"end":"2013-12-31","val":100000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2013-12-31","val":100000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2013-12-31","val":100000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2013Q4I"},{"end":"2014-12-31","val":70000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":70000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":70000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":70000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":70000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":70000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":70000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":70000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":70000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-10-31","val":70000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2016-12-31","val":70000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":70000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":70000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":70000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":70000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":70000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-03-31","val":70000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":70000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":70000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-06-28","val":90000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2019-06-28","val":90000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2I"},{"end":"2019-07-05","val":10000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"}]}},"CommitmentsAndContingencies":{"label":"Commitments and Contingencies","description":"Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"CommonStockDividendsPerShareCashPaid":{"label":"Common Stock, Dividends, Per Share, Cash Paid","description":"Aggregate dividends paid during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2012-01-01","end":"2012-12-31","val":0.03,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"}]}},"CommonStockParOrStatedValuePerShare":{"label":"Common Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of common stock.","units":{"USD/shares":[{"end":"2010-12-31","val":0.01,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":0.01,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":0.01,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0.01,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0.01,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0.01,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":0.01,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":0.01,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0.01,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":0.01,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0.01,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0.01,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0.01,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0.01,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":0.01,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":0.01,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":0.01,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0.01,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0.01,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0.01,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":0.01,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":0.01,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":0.01,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":0.01,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0.01,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0.01,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0.01,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0.01,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0.01,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":0.01,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":0.01,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":0.01,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0.01,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0.01,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.01,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.01,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0.01,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":0.01,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":0.01,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":0.01,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0.01,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.01,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.01,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.01,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0.01,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":0.01,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":0.01,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":0.01,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0.01,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.01,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.01,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.01,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":0.01,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":0.01,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":0.01,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":0.01,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0.01,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.01,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.01,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0.01,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":0.01,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":0.01,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":0.01,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":0.01,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":0.01,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":0.01,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0.01,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0.01,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":10000000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":10000000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":10000000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":10000000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10000000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10000000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":10000000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":10000000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":10000000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":10000000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10000000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10000000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10000000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10000000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":10000000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":10000000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":10000000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":10000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10000000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10000000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10000000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":10000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":10000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":10000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":10000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":10000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":10000000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":10000000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":10000000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":10000000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10000000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":10000000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":10000000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":10000000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":10000000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":10000000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":10000000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":10000000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10000000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10000000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10000000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10000000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":10000000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":10000000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":10000000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":10000000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10000000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10000000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10000000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10000000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":10000000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":10000000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":10000000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":10000000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":10000000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10000000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":10000000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":10000000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":10000000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":10000000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":10000000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":10000000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":10000000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":10000000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":10000000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":10000000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":3926491,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":3926491,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":3926491,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3926491,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3926491,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3926491,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":3926491,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":3926491,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":3926491,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3926491,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3926491,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3926491,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3926491,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3926491,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":3926491,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":3926491,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":3926491,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3926491,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3926491,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3926491,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2014-12-31","val":3926491,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":3926491,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":3926491,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":3926491,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3926491,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3926491,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3926491,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3926491,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3926491,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3926491,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":3926491,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3926491,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3926491,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3926491,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3926491,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3926491,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3926491,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":3926491,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":3926491,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":3926491,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3926491,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3926491,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3926491,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3926491,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3926491,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":3926491,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":3926491,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":3926491,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3926491,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3926491,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3926491,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3926491,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3926491,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":3926491,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":3926491,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":3926491,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3926491,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3926491,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":3926491,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":3926491,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":2790514,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":2790514,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2790514,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2790514,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":2790514,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2704239,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2790514,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":2790514,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":2790514,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":2704239,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2704239,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2704239,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2704239,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2722239,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2722239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2722239,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2722239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":2722239,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2722239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2731839,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2757339,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2778339,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":2778339,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":2778339,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":2778339,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":2778339,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2779439,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2786539,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2786539,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2801639,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":2801639,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2801639,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":2801639,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":2801639,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2816639,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2816639,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2816639,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2820999,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":2816639,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":2816639,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":2816639,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":2816639,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2820999,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2820999,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2833153,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2839274,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":2839274,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":2839274,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":2839274,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":2839274,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2844935,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2850177,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2855921,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2861008,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":2861008,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":2861008,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":2861008,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":2861008,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2872208,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2883189,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2895362,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2906609,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":39265,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":39265,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":39265,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":39265,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":39265,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":39265,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":39265,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":39265,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":39265,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":39265,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":39265,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":39265,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":39265,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":39265,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":39265,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":39265,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":39265,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":39265,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":39265,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":39265,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":39265,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":39265,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":39265,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":39265,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":39265,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":39265,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":39265,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":39265,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":39265,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":39265,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":39265,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":39265,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":39265,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":39265,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":39265,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":39265,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":39265,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":39265,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":39265,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":39265,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":39265,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":39265,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":39265,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":39265,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":39265,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":39265,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":39265,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":39265,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":39265,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":39265,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":39265,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":39265,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":39265,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":39265,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":39265,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":39265,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":39265,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":39265,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":39265,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":39265,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":39265,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":39265,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":39265,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":39265,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":39265,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":39265,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":39265,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":39265,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":39265,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":39265,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2014-01-01","end":"2014-12-31","val":659209,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-471668,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-471668,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-990757,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-180867,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-223137,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":-77171,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3"}]}},"ConstructionInProgressGross":{"label":"Construction in Progress, Gross","description":"Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.","units":{"USD":[{"end":"2011-12-31","val":353532,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":103269,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":103269,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":103269,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":103269,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":103269,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":125046,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":154626,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":264750,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":177473,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":177473,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":177473,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":177473,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":177473,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":413332,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":583154,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":364267,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":568234,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":568234,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":568234,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":568234,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":568234,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":543735,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":697926,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":743153,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":682069,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":682069,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":682069,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":682069,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":936106,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":333200,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":39223,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"ContractWithCustomerLiabilityCurrent":{"label":"Contract with Customer, Liability, Current","description":"Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.","units":{"USD":[{"end":"2017-12-31","val":426457,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":426457,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":426457,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":426457,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":510524,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":736570,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":613218,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":560802,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":560802,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":560802,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":560802,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":560802,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":552138,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":26944,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":24723,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":5472,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"CostOfGoodsAndServicesSold":{"label":"Cost of Goods and Services Sold","description":"The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":9289014,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":4687802,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":13894697,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":4605683,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":18718008,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":4804779,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":9798842,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":9798842,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":4994063,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":4994063,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":15254373,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":14827889,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":5455531,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":5266184,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":19648470,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":18986130,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":5194757,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":4521561,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":9897121,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":8686587,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":4702364,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":4165026,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":13106456,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":12884526,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":4112599,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":4197937,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":17848591,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":17848591,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":4691041,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":4691041,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":9013820,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":9013820,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":4322779,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":4322779,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":13192226,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":13192226,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":4178406,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":4178406,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":18308389,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":18308389,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":4718557,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":4718557,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":9838291,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":9838291,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":5119734,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":5119734,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":14723334,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":14723334,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":4885043,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":4885043,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":19432241,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":19432241,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":5061946,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":5061946,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":9688886,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":9688886,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":4626940,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":4626940,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":14197508,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":14197508,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":4508622,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":4508622,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":18332346,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":18332346,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":4298162,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":4298162,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":8482425,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":8482425,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":4184263,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":4184263,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":12384788,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":12384788,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":3902363,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3902363,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":16739526,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":16739526,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":4526882,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":4526882,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":9620492,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":9620492,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":5008889,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":5008889,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":13836335,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":13836335,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4215843,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4215843,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":17810284,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":17810284,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":4387688,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":4387688,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":8830294,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":8830294,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":4442606,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":4442606,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":13096930,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":13096930,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":4266636,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":4266636,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":17241289,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":17241289,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":4031803,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":8413547,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":4381744,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":12227430,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":3813882,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":15737469,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption":{"label":"Cumulative Effect of New Accounting Principle in Period of Adoption (Deprecated 2020-01-31)","description":"Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.","units":{"USD":[{"end":"2018-03-31","val":-13991,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-03-31","val":-13991,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-03-31","val":-13991,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q1I"},{"end":"2018-12-31","val":-13991,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":-13991,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"}]}},"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":192313,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"CurrentIncomeTaxExpenseBenefit":{"label":"Current Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":100513,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-6717,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-6717,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2017-01-01","end":"2017-12-31","val":2140,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2140,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"}]}},"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":-91800,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-6717,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-6717,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2017-01-01","end":"2017-12-31","val":2140,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2140,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"}]}},"CustomerDepositsCurrent":{"label":"Customer Deposits, Current","description":"The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings.","units":{"USD":[{"end":"2010-12-31","val":9548,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-12-31","val":232550,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":232550,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":232555,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-12-31","val":121779,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":121779,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":121779,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":121779,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":121779,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10731,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4855,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":19509,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":341465,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":341465,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":341465,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":341465,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":341465,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":317845,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":903126,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":525607,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":98110,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":98110,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":98110,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":98110,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":98110,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":89373,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":113178,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":58735,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":93407,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":93407,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":93407,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":93407,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":93407,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":359662,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":392034,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":417966,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":122290,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":122290,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":122290,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":122290,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":122290,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":93642,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":210465,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":260433,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":340624,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"DebtInstrumentCarryingAmount":{"label":"Long-term Debt, Gross","description":"Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.","units":{"USD":[{"end":"2015-12-31","val":1710287,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1710287,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1710287,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1565464,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2300884,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2114088,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2458331,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":2458331,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":2458331,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2338352,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2217480,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2093133,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-29","val":450000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"DebtInstrumentFaceAmount":{"label":"Debt Instrument, Face Amount","description":"Face (par) amount of debt instrument at time of issuance.","units":{"USD":[{"end":"2017-12-29","val":450000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-29","val":450000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q4I"}]}},"DebtInstrumentInterestRateStatedPercentage":{"label":"Debt Instrument, Interest Rate, Stated Percentage","description":"Contractual interest rate for funds borrowed, under the debt agreement.","units":{"pure":[{"end":"2012-12-31","val":0.0221,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0.0221,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":0.0466,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q1I"},{"end":"2013-03-31","val":0.042,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"}]}},"DebtInstrumentUnamortizedDiscount":{"label":"Debt Instrument, Unamortized Discount","description":"Amount, after accumulated amortization, of debt discount.","units":{"USD":[{"end":"2016-12-31","val":17989,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction":{"label":"Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction","description":"The amount of debt issuance costs that were incurred during a noncash or partial noncash transaction.","units":{"USD":[{"start":"2019-01-01","end":"2019-06-30","val":32236,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":35818,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":35818,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"DebtLongtermAndShorttermCombinedAmount":{"label":"Debt, Long-term and Short-term, Combined Amount","description":"Represents the aggregate of total long-term debt, including current maturities and short-term debt.","units":{"USD":[{"end":"2014-12-31","val":4338043,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":4338043,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":4581214,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4031767,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":4031767,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":4031767,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":4031767,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3985838,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4363865,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4869356,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4154481,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4778637,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":4778637,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":4778637,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":4778637,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":4778637,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":5800325,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":5828732,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6106653,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":6575241,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":6575241,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":6575241,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":6575241,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":6575241,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":5854176,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":5465830,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5601702,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":5972470,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":5972470,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":5972470,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":5972470,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":5972470,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":6644426,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":5981651,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":5284125,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":5301909,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DecreaseInRestrictedCash":{"label":"Decrease in Restricted Cash","description":"Amount of cash inflow associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-1000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"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":494700,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-319475,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-319475,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1437269,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":1437269,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"},{"start":"2017-01-01","end":"2017-12-31","val":-3100,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-3100,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"}]}},"DeferredFinanceCostsCurrentNet":{"label":"Debt Issuance Costs, Current, Net","description":"Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.","units":{"USD":[{"end":"2016-12-31","val":20413,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":51269,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"DeferredFinanceCostsNet":{"label":"Debt Issuance Costs, Net","description":"Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.","units":{"USD":[{"end":"2015-12-31","val":45929,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":45858,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"}]}},"DeferredForeignIncomeTaxExpenseBenefit":{"label":"Deferred Foreign Income Tax Expense (Benefit)","description":"Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"DeferredIncomeTaxExpenseBenefit":{"label":"Deferred Income Tax Expense (Benefit)","description":"Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-48200,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":-84000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":125000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-96500,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-253035,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-253035,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-253035,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":29500,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":160300,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":290000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-259400,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-91840,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-807400,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-308990,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-575900,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-605123,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-869275,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-869275,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-84508,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2267969,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":2267969,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-12-31","val":2267969,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":2267969,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"},{"start":"2017-01-01","end":"2017-12-31","val":-3100,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-3100,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"}]}},"DeferredIncomeTaxesAndOtherAssetsCurrent":{"label":"Deferred Income Taxes and Other Assets, Current","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and other assets expected to be realized or consumed within one year or normal operating cycle, if longer.","units":{"USD":[{"end":"2012-12-31","val":199432,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"USD":[{"end":"2011-12-31","val":1069500,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-1033800,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":1033800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-984500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":984500,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-1036300,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":1036300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":677400,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":677400,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":604700,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":604700,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":468500,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":468500,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":521700,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":521700,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":404400,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredRevenue":{"label":"Deferred Revenue","description":"Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.","units":{"USD":[{"end":"2011-12-31","val":159044,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":315268,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"DeferredRevenueCurrent":{"label":"Deferred Revenue, Current","description":"Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.","units":{"USD":[{"end":"2012-12-31","val":315268,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":315268,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":315268,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":315268,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":307232,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":292485,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":269498,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":248559,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":248559,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":248559,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":248559,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":248559,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":254965,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":229337,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":187792,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":228363,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":228363,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":228363,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":228363,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":228363,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":313769,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":293153,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":298367,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":272837,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":272837,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":272837,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":272837,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":272837,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":258543,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":253681,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":246657,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":224988,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":224988,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":224988,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":224988,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":224988,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":186764,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":173722,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":122889,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":85833,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"DeferredRevenueNoncurrent":{"label":"Deferred Revenue, Noncurrent","description":"Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":17868,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-12-31","val":13401,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":136075,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":326982,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":326982,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":326982,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":326982,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":326982,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":305913,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":288787,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":240744,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":172316,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":172316,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":172316,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":172316,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":172316,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":166288,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":121255,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":91824,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":610430,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":610430,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":610430,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":610430,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":610430,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":424789,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":360811,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":353560,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":272181,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":272181,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":272181,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":272181,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":272181,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":280279,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":242671,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":255412,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":156953,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":156953,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":156953,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":156953,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":156953,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":132953,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","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":-204700,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-549800,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-549800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":830700,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":830700,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"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":1004470,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3772600,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":3772600,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":4362700,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":4362700,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4278300,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":4278300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4149700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":4149700,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4417600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":4417600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3643700,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3643700,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3899600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3899600,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4285200,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsInventory":{"label":"Deferred Tax Assets, Inventory","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.","units":{"USD":[{"end":"2011-12-31","val":13100,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":89900,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":89900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":111800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":111800,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":188300,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":188300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":93600,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":-416030,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2267900,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2267900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3100,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3100,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3100,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3100,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3100,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsLiabilitiesNetCurrent":{"label":"Deferred Tax Assets, Net, Current","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.","units":{"USD":[{"end":"2011-12-31","val":66470,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":252400,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":252400,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":279900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":279900,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":278600,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":278600,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":117300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsLiabilitiesNetNoncurrent":{"label":"Deferred Tax Assets, Net, Noncurrent","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2011-12-31","val":938000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3520200,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":3520200,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":4082800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":4082800,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3999700,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":3999700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4032400,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":653470,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3301700,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":199432,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":199432,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":199432,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":199432,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2015-12-31","val":677400,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":604700,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":604700,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":471600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":471600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":524800,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":524800,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":407500,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsNetCurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Current","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.","units":{"USD":[{"end":"2010-12-31","val":2500,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":44000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":44000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":355000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":355000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":53970,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":23700,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":23700,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":23700,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":23700,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2012-03-31","val":64100,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":64100,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":199432,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"DeferredTaxAssetsNetNoncurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Noncurrent","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2012-06-30","val":297000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1862600,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2068538,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2068538,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":2068538,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":2068538,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":2068538,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":2153046,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"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":"2011-12-31","val":208000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2290400,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2290400,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2696400,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2696400,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2982100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":2982100,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3221000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3221000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3671600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3671600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2936800,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":2936800,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3144600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3144600,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3541500,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsForeign":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Foreign","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.","units":{"USD":[{"end":"2012-12-31","val":287500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":291100,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":291100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":291100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":291100,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":447500,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":447500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":474500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":474500,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":142100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":142100,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":45500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":45500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":500,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":21400,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":21400,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":45300,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":45300,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":5400,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2011-12-31","val":283000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":298300,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":298300,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":431900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":431900,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":421700,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":421700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":608000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":608000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":493800,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":493800,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":517700,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":517700,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":525000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":525000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":476100,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2011-12-31","val":54000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":81300,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":81300,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":89800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":89800,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":89700,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":89700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":89800,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":89800,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":96000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":96000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":64300,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":64300,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":68300,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":68300,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":106400,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.","units":{"USD":[{"end":"2011-12-31","val":30270,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":68900,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":68900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":104900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":104900,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":25100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":25100,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":117300,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":104600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":104600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":81500,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":81500,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":104400,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":104400,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":150800,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.","units":{"USD":[{"end":"2012-12-31","val":93600,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":63200,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":63200,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":65200,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":65200,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":23700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":351000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":470900,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":470900,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":-470900,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-3378200,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":-3378200,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-3242000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":3242000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3472300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3472300,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3812900,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3812900,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3172100,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3172100,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3374800,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3374800,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3877700,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DeferredTaxLiabilitiesCurrent":{"label":"Deferred Tax Liabilities, Net, Current","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.","units":{"USD":[{"end":"2011-12-31","val":-12500,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-53000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"DeferredTaxLiabilitiesNoncurrent":{"label":"Deferred Tax Liabilities, Net, Noncurrent","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":288500,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-12-31","val":470000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":470000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"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":"2011-12-31","val":-12500,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-53000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":-53000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-50400,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":-50400,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-59900,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":59900,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":64600,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":64600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":60700,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":60700,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":423200,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":423200,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":478200,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":43500,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":24500,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2011-12-31","val":-1057000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-980800,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":-980800,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-934100,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":-934100,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-976400,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":976400,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":612800,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":612800,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":544000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":544000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":45300,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":45300,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":43500,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":478200,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":379900,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"DefinedContributionPlanCostRecognized":{"label":"Defined Contribution Plan, Cost","description":"Amount of cost for defined contribution plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":41082,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":43149,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":43149,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":44488,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":44488,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":46958,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":46958,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":47858,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":47858,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":41072,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":41072,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":42215,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":42215,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":39039,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":39039,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":40477,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent":{"label":"Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent (Deprecated 2013-01-31)","description":"Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.","units":{"pure":[{"start":"2012-01-01","end":"2012-12-31","val":0.9,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent":{"label":"Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent","description":"Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.","units":{"pure":[{"start":"2013-01-01","end":"2013-12-31","val":0.9,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.9,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.9,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.9,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.9,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.9,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.9,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-01-01","end":"2011-12-31","val":1369418,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":347797,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":699858,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":1069967,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":1412170,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":1412170,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-336743,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":697895,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":697895,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":361152,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1067812,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":1065283,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":369917,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1439165,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":336743,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":1439165,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":377515,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":377515,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":741779,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":741779,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":364264,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":364264,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1111297,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1111297,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":369518,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":369518,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1471832,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1471832,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":355388,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":355388,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":728025,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":728025,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":372637,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":372637,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1099632,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":1099632,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":371606,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":371606,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1461353,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":1461353,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":361001,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":361001,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":744561,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":744561,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":383560,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":361001,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1150683,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1150683,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":406122,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":406122,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1539249,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1539249,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":395120,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":395120,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":801881,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":801881,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":406761,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":406761,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1207283,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":1207283,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":405402,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":405402,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1608643,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1608643,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":394787,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":394787,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":765696,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":765696,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":370909,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":370909,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1126773,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":1126773,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":361077,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":361077,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1499398,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":1499398,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":373614,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":745759,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":372144,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1103783,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":358024,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1457797,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"DepreciationDepletionAndAmortization":{"label":"Depreciation, Depletion and Amortization","description":"The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":698440,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":1070175,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":1374889,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":382309,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":766032,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":766032,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":1166666,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":1047670,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":1601381,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":1398232,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":468312,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":349396,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":959668,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":703057,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":1074764,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":1074764,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":1419226,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":1419226,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":338543,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":337426,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":697023,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":688089,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1074339,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":1065405,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":1444005,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":1444005,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":385359,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":385359,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":750616,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":750616,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":1177364,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1114278,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":1538893,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1475806,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":356382,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":356382,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":730013,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":730013,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":1102428,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":1102428,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1464588,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":1464588,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":361440,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":361440,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":745440,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":745440,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":1152001,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1152001,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":1541006,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1541006,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":395559,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":395559,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":803217,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":803217,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1208872,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":1208872,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":1611139,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1611139,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":395763,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":395763,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":767605,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":767605,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":1130000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":1130000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":1504037,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":1504037,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":375026,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":748582,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":1108018,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":1463443,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.","units":{"USD/shares":[{"start":"2013-01-01","end":"2013-12-31","val":-0.01,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.13,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":0.13,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.13,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0.13,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.13,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":0.13,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.13,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":0.13,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.","units":{"USD/shares":[{"start":"2013-01-01","end":"2013-12-31","val":-0.01,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.13,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":0.13,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.13,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0.13,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.13,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":0.13,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.13,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":0.13,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"DiscontinuedOperationTaxEffectOfDiscontinuedOperation":{"label":"Discontinued Operation, Tax Effect of Discontinued Operation","description":"Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet":{"label":"Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net","description":"Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":41375,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":41375,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":206571,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationAccountsPayable":{"label":"Disposal Group, Including Discontinued Operation, Accounts Payable","description":"Amount classified as accounts payable attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":176019,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":176019,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":446190,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":477324,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":477324,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":477324,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":477324,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":579835,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":322262,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":319937,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities":{"label":"Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities","description":"Amount classified as accounts payable and accrued liabilities attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2012-12-31","val":600571,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":319787,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":320702,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":320056,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":320056,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"}]}},"DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities":{"label":"Disposal Group, Including Discontinued Operation, Accrued Liabilities","description":"Amount classified as accrued liabilities attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":73996,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":73997,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":156877,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":123247,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":123247,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":123247,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":123247,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent":{"label":"Disposal Group, Including Discontinued Operation, Assets, Noncurrent","description":"Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":665000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents":{"label":"Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents","description":"Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":102972,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":102972,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-09-30","val":72021,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":30882,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":30882,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":30882,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":30882,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":30882,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":21503,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2495,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4285,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2013-09-30","val":-4285,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1509,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":-1509,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationInventory":{"label":"Disposal Group, Including Discontinued Operation, Inventory (Deprecated 2014-01-31)","description":"For the disposal group, including a component of the entity (discontinued operation), carrying amount of inventories (net of all valuation allowances and write-downs).","units":{"USD":[{"end":"2011-12-31","val":2000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets":{"label":"Disposal Group, Including Discontinued Operation, Other Assets, Current","description":"Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":172593,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":172593,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":24893,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3419,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3419,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":3419,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":3419,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":3419,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":1227,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet":{"label":"Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Net (Deprecated 2014-01-31)","description":"For the disposal group, including a component of the entity (discontinued operation), carrying value (net of accumulated depreciation and any write-downs) of tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.","units":{"USD":[{"end":"2011-12-31","val":946361,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":946361,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2012-09-30","val":291403,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":284300,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":284300,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":241704,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"DisposalGroupIncludingDiscontinuedOperationRevenue":{"label":"Disposal Group, Including Discontinued Operation, Revenue","description":"Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":133203,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":372955,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":372955,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"DividendsCash":{"label":"Dividends, Cash","description":"Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-336461,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":-168236,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":-336472,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":-344659,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-344659,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2012-01-01","end":"2012-03-31","val":-84119,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-84119,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-06-30","val":-84119,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-06-30","val":-84119,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":-84119,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-09-30","val":-84119,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":-84119,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-84119,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"DividendsCommonStockCash":{"label":"Dividends, Common Stock, Cash","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":84119,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"}]}},"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":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2010-01-01","end":"2010-06-30","val":0.12,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":0.08,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.16,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":0.04,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":0.19,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0.01,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-0.08,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-0.08,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":-0.09,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-0.09,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-0.11,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-0.11,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-0.03,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-0.03,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-0.48,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-0.47,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-0.13,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-0.16,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.51,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":-0.37,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1.75,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-1.24,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2.22,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.07,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.28,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.23,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0.23,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.24,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.24,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.04,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":0.04,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.08,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0.08,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.02,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.15,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-0.15,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.14,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.25,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2018-01-01","end":"2018-06-30","val":-0.05,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0.01,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or 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":"2012-01-01","end":"2012-03-31","val":-0.16,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.53,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-0.37,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1.76,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-1.24,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2.22,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.07,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.28,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-09-30","val":-0.14,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.25,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-0.08,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-0.08,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-09-30","val":-0.35,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-0.35,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-0.06,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-0.06,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-0.48,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-0.48,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-0.06,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-0.06,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-0.05,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0.01,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-0.08,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-0.08,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":-0.03,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":-0.03,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-0.39,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-0.39,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-0.18,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.34,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-0.16,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.52,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":-0.18,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.74,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2010-01-01","end":"2010-06-30","val":0.12,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":0.08,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.16,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":0.04,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":0.19,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0.01,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-0.08,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-0.09,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-0.11,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-0.11,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-0.03,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-0.03,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-0.48,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-0.47,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-0.13,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-0.16,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-09-30","val":-1.75,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-1.24,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2.22,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.07,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.28,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.22,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0.22,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.23,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.23,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.04,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":0.04,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.08,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0.08,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.02,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.15,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-0.15,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.14,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.25,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2018-01-01","end":"2018-06-30","val":-0.05,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0.01,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"}]}},"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":"2012-01-01","end":"2012-12-31","val":0.34,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0.34,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.34,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.34,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.34,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.35,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":0.34,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.21,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"EffectOfExchangeRateOnCashAndCashEquivalents":{"label":"Effect of Exchange Rate on Cash and Cash Equivalents","description":"Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":18134,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-03-31","val":25219,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":23690,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":23690,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":9347,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":9347,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":{"label":"Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount","description":"Amount of cost not yet recognized for nonvested award under share-based payment arrangement.","units":{"USD":[{"end":"2012-09-30","val":156454,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":130202,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"},{"end":"2013-03-31","val":101433,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":91850,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":84761,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":133531,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"},{"end":"2014-12-31","val":86896,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":134160,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":134160,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":134354,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-03-31","val":119382,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1I"},{"end":"2017-06-30","val":111126,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":101616,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":79737,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-03-31","val":111047,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":101196,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":93463,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":127944,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-12-31","val":166820,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"EscrowDeposit":{"label":"Escrow Deposit","description":"The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.","units":{"USD":[{"end":"2016-12-31","val":25000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":25000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2016-12-31","val":25000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2016Q4I"}]}},"FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations":{"label":"Subordinated Debt Obligations, Fair Value Disclosure","description":"Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.","units":{"USD":[{"end":"2013-12-19","val":416950,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-19","val":416950,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-19","val":416950,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q4I"}]}},"FiniteLivedIntangibleAssetsAccumulatedAmortization":{"label":"Finite-Lived Intangible Assets, Accumulated Amortization","description":"Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2011-12-31","val":-371858,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2012-09-30","val":-431072,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2013-12-31","val":469091,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q4I"},{"end":"2014-09-30","val":410118,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":411111,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":411111,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":411111,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":411111,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":412105,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":413099,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7542,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":7981,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":7981,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":7981,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":7981,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":7981,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":8420,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8860,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":9299,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":9738,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":9738,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":9738,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":9738,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":9738,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10177,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10725,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11327,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10626,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":10626,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":10626,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":10626,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11602,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12535,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-12-31","val":15266,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":15266,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":20912,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"FiniteLivedIntangibleAssetsGross":{"label":"Finite-Lived Intangible Assets, Gross","description":"Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2011-12-31","val":521621,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2012-09-30","val":624283,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2013-12-31","val":653608,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q4I"},{"end":"2014-09-30","val":531181,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":545133,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":545133,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":545133,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":545133,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":546190,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":550662,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":26626,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":26626,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":26626,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":26626,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":26626,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":26626,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":26626,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":26626,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":26626,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":39831,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":39831,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":39831,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":39831,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":39831,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":45112,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":55126,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":69139,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":65759,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":65759,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":65759,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":65759,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":65759,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":65759,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-12-31","val":68421,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":68421,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":68421,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"FiniteLivedIntangibleAssetsNet":{"label":"Finite-Lived Intangible Assets, Net","description":"Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2011-12-31","val":149763,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2012-09-30","val":193211,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2013-12-31","val":184517,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q4I"},{"end":"2014-09-30","val":121063,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":134022,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":134085,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":137563,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":19084,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":18645,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":18206,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":17766,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":17327,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":30093,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":34935,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":44401,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":57812,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":55133,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":54157,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":53224,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-12-31","val":53155,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":53155,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":47509,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2012-01-01","end":"2012-03-31","val":6026,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-09-30","val":174,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2014-01-01","end":"2014-06-30","val":-24500,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":21000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":21000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":11029,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-14729,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":14729,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":17143,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":17143,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-13320,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-13320,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":12315,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":12315,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":21554,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":21554,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":21750,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":21750,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":21750,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":21750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":8360,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":8360,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-09-30","val":7602,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":7602,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2010-01-01","end":"2010-06-30","val":146288,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":146288,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":146288,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"}]}},"GeneralAndAdministrativeExpense":{"label":"General and Administrative Expense","description":"The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":1275859,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":671862,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2025255,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":749396,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2814972,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":878370,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1798843,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":1798843,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":920473,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":920473,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":2684057,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":1994282,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":885214,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":657021,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":3534366,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":2732426,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":975380,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":692659,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2009281,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":1420572,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":1033901,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":727916,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2141089,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":2141089,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":720515,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":720515,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3102643,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":3102643,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":724130,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":724130,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1309475,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":1309475,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":585345,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":585345,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2037139,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":2037139,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":727664,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":727664,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2704957,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":2704957,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":594631,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":594631,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1137866,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":1137866,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":543235,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":543235,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1735279,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1735279,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":597413,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":597413,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":2322795,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2322795,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":648227,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":648227,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1173804,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":1173804,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":525577,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":525577,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1825473,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":1825473,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":651669,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":651669,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2355484,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":2355484,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":690635,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":690635,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1182067,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":1182067,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":491432,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":491432,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1664182,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1664182,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":482115,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":482115,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2151244,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2151244,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":616829,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":616829,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1169508,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":1169508,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":552678,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":552678,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1783590,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":1783590,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":614082,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":614082,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2357909,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2357909,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":604035,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":604035,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1133127,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":1133127,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":529092,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":529092,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1642306,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":1642306,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":509179,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":509179,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2243595,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2243595,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":884875,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1582940,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":698065,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2283563,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":700622,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":2760787,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"Goodwill":{"label":"Goodwill","description":"Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2010-12-31","val":1564966,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1564966,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":1564966,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":1564966,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1564966,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1479727,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1479727,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":1479727,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":1479727,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":1479727,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2012-03-31","val":1479727,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1479727,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"GoodwillImpairmentLoss":{"label":"Goodwill, Impairment Loss","description":"Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":85239,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":85239,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2012-01-01","end":"2012-09-30","val":1479727,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-09-30","val":1479727,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":1479727,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":1479727,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":1479727,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1479727,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"GrossProfit":{"label":"Gross Profit","description":"Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":2078625,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":1094477,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":3361219,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":1282594,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":4641275,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1378286,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2402552,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":2402552,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":1024266,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":1024266,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":3735995,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":4101606,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":1333443,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":1490666,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":4607903,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1110425,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":1310061,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1385046,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":1939536,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":274621,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":629475,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2774705,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":2700631,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":727213,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":761097,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":2793979,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":952148,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":952148,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1509814,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":1509814,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":557666,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":557666,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2059625,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":2059625,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":549811,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":549811,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3032663,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":3032663,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1311286,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1311286,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2445309,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":2445309,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":1134023,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":1134023,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3606138,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":3606138,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":1160829,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":1160829,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":4638051,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":4638051,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":796396,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":796396,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1828550,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":1828550,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":1032154,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":1032154,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2546063,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":2546063,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":717513,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":717513,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3162838,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":3162838,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":685119,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":685119,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1629869,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":1629869,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":944750,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":944750,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2440629,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":2440629,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":810760,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":810760,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2898691,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2898691,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":738095,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":738095,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1035211,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":1035211,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":381837,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":381837,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1727456,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":1727456,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":692245,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":692245,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2292378,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2292378,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":731360,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":731360,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1609180,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":1609180,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":877820,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":877820,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2344204,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":2344204,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":735024,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":735024,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2323692,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2323692,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":653827,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1164273,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":510446,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1681671,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":517398,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1761895,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ImpairmentOfIntangibleAssetsExcludingGoodwill":{"label":"Impairment of Intangible Assets (Excluding Goodwill)","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":33192,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":33192,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"ImpairmentOfIntangibleAssetsFinitelived":{"label":"Impairment of Intangible Assets, Finite-lived","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":56912,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2014-01-01","end":"2014-09-30","val":63086,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":56237,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":56237,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":63087,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":63087,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":118318,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":118318,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":118318,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":118318,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":118318,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1771,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1771,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ImpairmentOfLongLivedAssetsHeldForUse":{"label":"Impairment of Long-Lived Assets Held-for-use","description":"The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1063321,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"IncomeLossFromContinuingOperations":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent","description":"Amount after tax of income (loss) from continuing operations attributable to the parent.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":766550,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":334118,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":46322,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-287796,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1406231,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-1452552,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-2377107,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-2377107,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2067,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":2067,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-2875315,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-2875315,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-2877383,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-2877383,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-3444844,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-3444844,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-569528,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-569528,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-3519136,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-3519136,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":259142,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":259142,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":498955,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":498955,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":239814,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":239814,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":628601,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":628601,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":660988,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":660988,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-254548,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-254548,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-139322,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-139322,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-404949,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-404949,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-791776,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-791776,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-384148,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-390597,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-68562,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-12-31","val":-1355096,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Domestic","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":237778,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-267168,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-504946,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-2015854,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-1748685,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":-82442,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-607346,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-524905,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1176875,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-569528,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-3253099,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-82442,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-607346,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-524905,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1176875,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-569528,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1251167,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-1251167,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":260319,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":260319,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":501162,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":501162,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":240844,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":240844,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":630808,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":630808,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":663156,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":663156,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-254548,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-254548,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-139322,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-139322,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-404949,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-404949,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-790844,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-790844,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-384148,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-384148,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-390597,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-390597,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":-68562,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-68562,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-213715,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-213715,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-990757,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-990757,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-180867,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-180867,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1356056,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-1356056,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-223137,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-223137,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":-77171,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":-77171,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-1096139,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-1096139,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-518773,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-989731,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-470958,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-1496708,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":-506977,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-2141134,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-01-01","end":"2011-09-30","val":1035234,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":540453,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-09-30","val":-1361380,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-1473069,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"}]}},"IncomeLossFromContinuingOperationsPerBasicAndDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Basic and Diluted Share","description":"The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.","units":{"USD/shares":[{"start":"2012-01-01","end":"2012-03-31","val":0.12,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.02,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-0.1,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-0.5,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-0.52,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.86,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.27,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.3,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"IncomeLossFromContinuingOperationsPerBasicShare":{"label":"Income (Loss) from Continuing Operations, Per Basic Share","description":"The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2011-01-01","end":"2011-09-30","val":0.37,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":0.19,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":0.27,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":-0.49,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-0.53,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.86,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.27,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.3,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.23,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0.23,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.24,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.24,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-0.09,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-0.05,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-0.05,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.15,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-0.15,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.28,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-0.28,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.14,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.25,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2"}]}},"IncomeLossFromContinuingOperationsPerDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Diluted Share","description":"The amount of net income (loss) derived from continuing operations during 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":"2011-01-01","end":"2011-12-31","val":0.27,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-0.86,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-1.06,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.27,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-0.21,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.3,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.18,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.09,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.22,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":0.22,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0.05,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.23,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.23,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-0.09,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-0.09,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-0.05,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-0.05,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0.04,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.15,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-0.15,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-0.1,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.28,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-0.28,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-0.11,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0.02,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.14,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.25,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-0.29,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-0.18,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTax":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":-770037,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-7738,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent","description":"Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":1336658,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-06-30","val":-1527325,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-757287,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3523378,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-3523380,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-1996055,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-3760827,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-7738,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-20546,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-20546,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-12808,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-12808,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-16569,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-16569,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":3977,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":3977,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-19194,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-19194,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-2425,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-2425,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-1779,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-1779,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":646,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":646,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-1779,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-1779,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1779,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-1779,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":362610,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":362610,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":362610,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":362610,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":362610,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":362610,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":362610,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":362610,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share","description":"Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.","units":{"USD/shares":[{"start":"2012-01-01","end":"2012-03-31","val":-0.28,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.55,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-0.27,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1.26,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-0.72,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-1.36,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.01,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-0.01,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-0.01,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2011-01-01","end":"2011-09-30","val":-0.48,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-0.22,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-0.74,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":-1.26,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-0.71,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-1.36,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.01,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-0.01,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2011-01-01","end":"2011-12-31","val":-0.74,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1.36,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.01,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-0.01,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3"}]}},"IncomeTaxExaminationPenaltiesAndInterestAccrued":{"label":"Income Tax Examination, Penalties and Interest Accrued","description":"The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.","units":{"USD":[{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"IncomeTaxExaminationPenaltiesAndInterestExpense":{"label":"Income Tax Examination, Penalties and Interest Expense","description":"The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-06-30","val":109800,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":45800,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":185000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":75200,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":21000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-135485,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-135485,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":-156485,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-156485,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-185485,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-50000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":390513,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-263900,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-96340,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-811900,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":541000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-548000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":334000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1731580,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-875992,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-875992,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-84509,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":3055,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1190580,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2267969,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":2267969,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1177,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2207,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":1030,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2207,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2168,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":932,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2017-01-01","end":"2017-12-31","val":-960,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-960,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2168,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"}]}},"IncomeTaxExpenseBenefitContinuingOperations":{"label":"Income Tax Expense (Benefit), Continuing Operations (Deprecated 2013-01-31)","description":"The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":390513,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-313490,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-217150,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-609623,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-296133,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-875992,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":2267969,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":2352478,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2267969,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"}]}},"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":"2012-01-01","end":"2012-03-31","val":130000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"}]}},"IncomeTaxesReceivable":{"label":"Income Taxes Receivable, Current","description":"Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.","units":{"USD":[{"end":"2012-12-31","val":194912,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":194912,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2013-06-30","val":127961,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":127961,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"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":"2017-01-01","end":"2017-12-31","val":1002994,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1002994,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"}]}},"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":393370,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1106054,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-1106054,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-425395,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-425395,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":224867,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":224867,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-145442,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-145442,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-250071,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-250071,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-461347,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-461347,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-216791,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-216791,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-481139,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":108016,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":26362,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":26362,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-12-31","val":-7551,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"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":-262698,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-299200,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-299200,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-58045,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-58045,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":23475,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":23475,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":615,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":615,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-27646,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-27646,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1431,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1431,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1713,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":1713,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-19580,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-12-31","val":89900,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":96133,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":96133,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":6630,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":6630,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":108194,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":108194,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":32577,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":32577,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":73618,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":73618,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":7326,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":7326,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"}]}},"IncomeTaxRefundsDiscontinuedOperations":{"label":"Income Tax Refunds, Discontinued Operations","description":"The amount of cash received during the period as refunds for the overpayment of taxes from discontinued operations.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":132,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"IncreaseDecreaseInAccountsAndOtherReceivables":{"label":"Increase (Decrease) in Accounts and Other Receivables","description":"The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":499409,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":328538,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":34823,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":493071,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":44906,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":44906,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":951601,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":895274,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-343097,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-306597,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":849750,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-644479,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":-194148,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":-220046,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":220046,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":24840,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-39618,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":716930,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-545034,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-545034,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-242185,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-242185,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-83113,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-83113,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":84071,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-84071,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":262106,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-262106,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-476322,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":476322,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-824149,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-128961,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":-723394,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":541196,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":258842,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":258842,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"}]}},"IncreaseDecreaseInAccountsPayable":{"label":"Increase (Decrease) in Accounts Payable","description":"The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":658726,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":387609,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":405665,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":309329,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-24940,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-24940,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-211992,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-211992,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":102581,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":102581,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-281747,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-281747,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-34492,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-34492,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-397948,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-397948,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":78704,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":78704,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-298875,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-298875,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":411677,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":411677,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":325282,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":325282,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":19387,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":19387,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-303768,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-303768,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":118143,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":118143,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":185567,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":185567,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":411278,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":411278,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":190873,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":190873,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":332626,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":332626,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":866811,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":866811,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-32599,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-32599,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-209912,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-209912,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-155701,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-155701,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-208279,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-208279,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":-86616,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-86616,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-343038,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-343038,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-200811,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-330537,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":-588531,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-371833,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"IncreaseDecreaseInAccountsPayableAndAccruedLiabilities":{"label":"Increase (Decrease) in Accounts Payable and Accrued Liabilities","description":"The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-27286,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":314084,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":653330,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-868447,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-924525,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":-926759,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":-54502,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":176096,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":335406,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":72948,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":779017,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-06-30","val":-242402,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-06-30","val":156368,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":176506,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-09-30","val":286168,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2013-01-01","end":"2013-03-31","val":140521,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":242612,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":-8435,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"IncreaseDecreaseInAccountsReceivable":{"label":"Increase (Decrease) in Accounts Receivable","description":"The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":-851895,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":642334,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":194148,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-03-31","val":24840,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-39618,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":716930,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2015-01-01","end":"2015-06-30","val":824149,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-128961,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-723394,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":541196,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-106330,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-106330,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-460983,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-460983,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":-551745,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-551745,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":959163,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":959163,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1176664,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":1176664,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":638069,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":638069,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":328640,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":328640,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":496324,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":496324,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":457443,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":457443,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":334469,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":334469,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-269444,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-269444,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":442265,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-41903,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":54523,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-172719,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"IncreaseDecreaseInAccruedLiabilities":{"label":"Increase (Decrease) in Accrued Liabilities","description":"The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1158789,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":56013,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":242612,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":77803,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":195840,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":195840,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":23724,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":23724,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":879531,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":879531,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":399826,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":399826,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-294351,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-294351,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":357803,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":357803,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":283897,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":283897,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":98516,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":98516,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-90426,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-90426,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":350954,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":98993,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":363393,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":83922,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":332993,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":83922,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":38618,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":57584,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":101485,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":101485,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":117361,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":117361,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":123222,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":123222,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-13296,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-13296,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":54812,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":54812,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":125061,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":125061,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":297228,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":297228,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":157376,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":157376,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":339071,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":174687,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":320092,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-83367,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"IncreaseDecreaseInCustomerDeposits":{"label":"Increase (Decrease) in Customer Deposits","description":"The increase (decrease) during the period in the amount of customer money held in customer accounts, including security deposits, collateral for a current or future transactions, initial payment of the cost of acquisition or for the right to enter into a contract or agreement.","units":{"USD":[{"start":"2016-01-01","end":"2016-03-31","val":266255,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":298627,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":298627,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":28883,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-28648,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":88175,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":138143,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":218334,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","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":"2011-01-01","end":"2011-12-31","val":-166063,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2684000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":2684000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":2267969,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":2267969,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-2267969,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-2267969,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"IncreaseDecreaseInDeferredRevenue":{"label":"Increase (Decrease) in Deferred Revenue","description":"Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.","units":{"USD":[{"start":"2016-01-01","end":"2016-03-31","val":-14294,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-19156,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-19156,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":-47849,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-38224,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-51266,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":-102099,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-139155,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"IncreaseDecreaseInInventories":{"label":"Increase (Decrease) in Inventories","description":"The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":50142,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":190970,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":112495,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":57503,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-565658,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-565658,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-338359,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-340553,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":200305,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":202305,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":183648,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-183648,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":298520,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-298520,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-47002,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":47002,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-852378,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":852378,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-344549,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-344549,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-36105,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-36105,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-238907,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-238907,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":79813,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":79813,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-419018,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-419018,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-752266,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-752266,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-808814,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":808814,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-178950,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":178950,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-11947,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":11947,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":23518,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-23518,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-56996,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-56996,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-395529,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-395529,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-3641,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-3641,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":554983,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":554983,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":1025759,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1025759,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":941373,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":941373,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":293198,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":293198,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":194180,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":194180,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":154072,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":154072,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":353114,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":353114,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-11256,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-11256,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":308214,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":308214,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":483847,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":483847,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":348121,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":348121,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":190058,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-683218,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":-1087278,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-1258015,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"IncreaseDecreaseInOtherNoncurrentAssets":{"label":"Increase (Decrease) in Other Noncurrent Assets","description":"Amount of increase (decrease) in noncurrent assets classified as other.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":-124198,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-193511,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-03-31","val":-41921,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-94558,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-94558,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-44171,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-03-31","val":13097,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":66128,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":66128,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":80753,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-80753,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":384762,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":168405,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-168405,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":226802,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-226802,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-230325,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-230325,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-301522,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-301522,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-29355,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-29355,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-52602,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-52602,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-31530,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-31530,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":-112604,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-112604,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-20886,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-20886,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-145603,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-145603,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-147085,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-147085,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-145942,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-145942,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":-2000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":-1000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-1000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-995,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"}]}},"IncreaseDecreaseInOtherNoncurrentLiabilities":{"label":"Increase (Decrease) in Other Noncurrent Liabilities","description":"Amount of increase (decrease) in noncurrent operating liabilities classified as other.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":168199,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":262229,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-03-31","val":-21069,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-38195,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-38195,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-86238,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-154666,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-6028,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-51060,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-51060,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-80492,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-80492,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":438114,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":438114,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-185641,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-185641,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-249619,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-249619,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-256870,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-256870,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-338249,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-338249,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":8097,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":8097,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-29510,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-29510,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-16769,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-16769,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":-115228,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-115228,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-24000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-24000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-156953,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-156953,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-156953,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-156953,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-156953,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-156953,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"}]}},"IncreaseDecreaseInOtherOperatingAssets":{"label":"Increase (Decrease) in Other Operating Assets","description":"Amount of increase (decrease) in operating assets classified as other.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":59697,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-126618,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-126618,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-41921,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-12-31","val":29001,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":29001,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":13097,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-12-31","val":-384762,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"IncreaseDecreaseInOtherOperatingLiabilities":{"label":"Increase (Decrease) in Other Operating Liabilities","description":"Amount of increase (decrease) in operating liabilities classified as other.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-63486,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":190907,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":190907,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-03-31","val":-21069,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-12-31","val":-154666,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-6028,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"}]}},"IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets":{"label":"Increase (Decrease) in Prepaid Expense and Other Assets","description":"Amount of increase (decrease) in prepaid expenses, and assets classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":184891,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":325575,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":344522,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-95607,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-637890,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-637890,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-37884,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":2927,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":293418,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":446126,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-555541,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":685290,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-656957,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":254598,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-476528,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":45027,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":122391,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":122391,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":132438,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":132438,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-91817,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-47646,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":256714,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":256714,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":25441,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":25441,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-107017,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-107017,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-134760,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":134760,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-6385,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":6385,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-96785,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":96785,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-76378,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":76378,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":276904,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":276904,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":94547,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":94547,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":23400,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":23400,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-36855,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-36855,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":130953,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":130953,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":25228,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":25228,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-37216,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-37216,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-4159,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-4159,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-57860,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-57860,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-153408,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-153408,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-106774,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-106774,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-186311,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-188311,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":98922,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":98922,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-43394,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-44389,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-21521,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-187140,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":-110170,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-131026,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2012-12-31","val":156091,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":184517,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":184517,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":184517,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":184517,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":184517,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":176977,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":178293,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":121063,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":134022,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":134022,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":134085,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":137563,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":19084,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":18645,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":18645,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":18206,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":17766,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":17327,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":30093,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":30093,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":34935,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":44401,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":57812,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":55133,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":55133,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":54157,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":53224,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":54567,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":53155,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":53155,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":53155,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":53155,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":53155,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":51744,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":50332,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":48920,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":47509,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":226,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":6886,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":7110,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":14855,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":7969,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":23881,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":23881,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":10548,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":207545,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":207545,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":196999,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":196999,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":258940,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":258940,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":51393,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":51393,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":319395,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":319395,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":70149,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-70149,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":140678,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-140678,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":70529,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-70529,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":206914,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":206914,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":66236,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":66236,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":274138,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":274138,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-65693,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":65693,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-135533,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":135533,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":-69840,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":69840,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":202135,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":202135,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":66602,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":66602,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":260300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":260300,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":60220,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":60220,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":123496,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":123496,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":63276,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":63276,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":193092,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":193092,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":69596,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":69596,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":259762,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":259762,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":63901,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":63901,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":151330,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":151330,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":87429,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":87429,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":235165,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":235165,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":83835,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":83835,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":395085,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":395085,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":97012,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":97012,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":193028,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":193028,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":96016,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":96016,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":294467,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":294467,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":101439,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":101439,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":391437,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":391437,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":110977,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":222777,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":111800,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":332553,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":109776,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":431544,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":6886,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-12-31","val":8984,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":10536,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":10536,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":40593,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":40593,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":91751,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":301621,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":301621,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":59632,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":59632,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":119229,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":119229,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":173445,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":173445,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":228255,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":228255,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":53705,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":53705,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":111639,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":111639,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":171040,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":171040,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":222237,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":222237,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":55579,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":55579,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":113112,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":113112,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":173035,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":233330,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":59086,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":138279,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"}]}},"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":"2016-01-01","end":"2016-09-30","val":173035,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":233330,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":59086,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":138279,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":202327,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":202327,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":324641,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":324641,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":82342,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":162775,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":162775,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":244819,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":244819,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":313425,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":313425,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-06-30","val":188911,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":272526,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":353343,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"InventoryFinishedGoods":{"label":"Inventory, Finished Goods, Gross","description":"Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":2226400,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2224400,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":2226400,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2012-06-30","val":1988651,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2193239,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1645037,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1645037,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":1645037,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":1645037,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":1388308,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":859901,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1289078,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"InventoryFinishedGoodsNetOfReserves":{"label":"Inventory, Finished Goods, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.","units":{"USD":[{"end":"2013-12-31","val":1121095,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1270715,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":1270715,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":1270715,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":1270715,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":1270715,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1064514,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1275646,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1244782,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1078172,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":1078172,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1078172,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1078172,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1078172,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":972901,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1016670,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1458054,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1494753,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":1494753,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":1494753,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":1494753,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":1494753,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1571952,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1829583,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1480524,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1490768,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":1490768,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":1490768,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":1490768,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":1490768,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1432784,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1428060,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1605104,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1499900,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1499900,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1499900,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1499900,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1499900,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1785860,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1527226,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1302880,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1151713,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"InventoryGross":{"label":"Inventory, Gross","description":"Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.","units":{"USD":[{"end":"2011-12-31","val":3267482,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2754309,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3087557,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3144105,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2514241,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"}]}},"InventoryNet":{"label":"Inventory, Net","description":"Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":3069177,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":3069177,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":3069177,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2503519,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2730818,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3269482,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":3269482,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":3269482,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":3267482,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3267482,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3453130,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3568002,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3220480,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":2415104,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2759653,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2451209,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2654011,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2335291,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2754309,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3087557,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3144105,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2514241,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":2514241,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":2457245,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2118712,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":2118712,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2118712,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":2118712,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":2118712,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2115071,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2673695,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3144471,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3060085,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3060085,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":3060085,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":3060085,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":3060085,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3353283,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3254264,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3214157,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3413199,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3413199,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":3413199,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":3413199,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":3413199,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3325682,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3645152,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3820785,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3685059,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3685059,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":3685059,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":3685059,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":3685059,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3916721,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3043445,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2639385,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2468648,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"InventoryRawMaterials":{"label":"Inventory, Raw Materials, Gross","description":"Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":645906,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":647906,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":647906,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2012-06-30","val":851996,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":806774,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":521908,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":521908,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":521908,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":521908,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":1037061,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1384641,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1062042,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"InventoryRawMaterialsNetOfReserves":{"label":"Inventory, Raw Materials, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.","units":{"USD":[{"end":"2013-12-31","val":947765,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":873306,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":873306,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":873306,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":873306,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":873306,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1127527,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":831795,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":862160,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":775427,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":775427,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":775427,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":775427,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":775427,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":744320,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":934684,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":977277,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1027474,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":1027474,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":1027474,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":1027474,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":1027474,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1055210,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":799698,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1060790,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1100187,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":1100187,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":1100187,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":1100187,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":1100187,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1048842,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1120619,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1140208,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1079887,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1079887,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1079887,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1079887,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1079887,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1181520,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1105084,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":928730,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":923502,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"InventoryValuationReserves":{"label":"Inventory Valuation Reserves","description":"Amount of valuation reserve for inventory.","units":{"USD":[{"end":"2012-12-31","val":-317484,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":-317484,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":317484,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2013-03-31","val":339984,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-365000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":373000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"InventoryWorkInProcess":{"label":"Inventory, Work in Process, Gross","description":"Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":395176,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":395176,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":395176,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2012-06-30","val":727355,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":220467,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":248159,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":248159,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":248159,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":248159,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":334284,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":206667,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":302891,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"InventoryWorkInProcessNetOfReserves":{"label":"Inventory, Work in Process, Net of Reserves","description":"Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.","units":{"USD":[{"end":"2013-12-31","val":266431,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-12-31","val":370220,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":370220,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":370220,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":370220,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":370220,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":334147,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":383282,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":350303,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":265113,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":265113,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":265113,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":265113,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":265113,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":397850,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":722341,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":709140,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":537858,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":537858,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":537858,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":537858,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":537858,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":726121,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":624983,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":672843,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":822244,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":822244,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":822244,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":822244,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":822244,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":844056,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1096473,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1075473,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1105272,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1105272,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1105272,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1105272,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1105272,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":949342,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":411136,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":407775,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":393433,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"Land":{"label":"Land","description":"Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.","units":{"USD":[{"end":"2011-12-31","val":202492,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":202492,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":202492,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":202492,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":202492,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":202492,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":202492,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":202492,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":202492,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":202492,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":202492,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":202492,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":202492,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":202492,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":202492,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":202492,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":202492,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":202492,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":202492,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":202492,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":202492,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":202492,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":202492,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":202492,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":202492,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"}]}},"LeaseAndRentalExpense":{"label":"Operating Leases, Rent Expense","description":"Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":1822,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":1822,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3644,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":5435,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":1822,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":1822,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":5466,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":7966,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":1822,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":3322,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":1822,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":3322,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3644,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":14444,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":3613,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":5113,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":14444,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":14444,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":6009,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":4615,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":20453,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":7230,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":7000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":13114,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":13114,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":5884,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":5884,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":13114,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":13114,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4615,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4615,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":24954,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":24954,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":6000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":5913,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":11921,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":11921,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":6008,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":6008,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":19164,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":17977,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":6056,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":6056,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":24033,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":24033,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":6056,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":11187,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":5131,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":15900,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":4713,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":20613,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":[{"start":"2013-01-01","end":"2013-06-30","val":700000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":700000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"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":"2011-03-16","val":1000000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q1I"},{"end":"2011-03-16","val":1000000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"}]}},"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":2904057,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":2904057,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":2862557,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2035263,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3134766,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3374994,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":3374994,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":3374994,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":3374995,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3670113,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4457163,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4947096,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6664284,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7263481,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":7263481,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":7263481,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":7263481,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":7263481,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7380334,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":8786444,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9185102,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10006760,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":10006760,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":10006760,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":10006760,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":10006760,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":9914114,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":8891446,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":8498358,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":7858133,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":7858133,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":7858133,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":7858133,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":7858133,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":8258286,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":8405184,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7642281,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6499357,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":6499357,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6499357,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":6499357,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":6453428,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7308649,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7856396,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":7349572,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":7360490,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":7360490,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":7360490,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":7360490,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":7360490,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":8725418,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":9263464,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":8646974,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":8856112,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":8856112,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":8856112,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":8856112,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":8856112,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":8118225,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":7955263,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":8344544,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":8192678,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":8192678,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":8192678,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":8192678,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":8192678,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9004431,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":7512151,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":6706064,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":6532285,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":20329496,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":20329496,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":20287996,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":19150609,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":20017041,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":19227430,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":19227431,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":19476088,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":19887615,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19364280,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":17632493,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":16960214,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":17085642,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":15615062,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":15461068,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":16353284,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":16528605,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15794431,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":15626012,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":15103248,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":15579975,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":15879533,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":14854530,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":13382034,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":13336105,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":13873461,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":14498779,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":13927885,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":13647421,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":14824854,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":14784171,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":14039147,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":13924600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":13027320,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12926731,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":13266445,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":12280786,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":12631628,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":10758626,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9501394,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":8734334,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LiabilitiesCurrent":{"label":"Liabilities, Current","description":"Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":2556189,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":2556189,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":2556189,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1631664,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2732283,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2891593,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":2891593,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":2891593,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":2891594,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3050637,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3775994,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3809909,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5595292,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5936352,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":5936352,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":5936352,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":5936352,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":5936352,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":6857215,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":7123213,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5277424,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4923764,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":4923764,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4923764,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":4923764,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":4923764,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4967236,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6760686,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6512937,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":5471496,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":5471496,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":5471496,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":5471496,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":5471496,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":6176346,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3775488,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3290664,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3293897,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3293897,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3293897,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":3293897,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3293897,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3792115,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6075819,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5751717,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4800663,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":4800663,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":4800663,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":4800663,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":4800663,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6298028,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":8826993,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":8208235,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":4877697,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":4877697,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":4877697,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":4877697,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":4877697,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":4253602,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4188096,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":4663547,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4635220,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":4635220,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":4635220,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":4635220,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":4635220,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":5544328,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3731639,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2973504,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":6062133,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LiabilitiesNoncurrent":{"label":"Liabilities, Noncurrent","description":"Amount of obligation due after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":347868,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":347868,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":306368,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":403599,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":402483,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":483401,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":483401,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":483401,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":483401,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":619476,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":681169,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1137187,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1068992,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1327129,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":1327129,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":1327129,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":1327129,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":1327129,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":523119,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1663231,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3907678,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5082996,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":5082996,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":5082996,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":5082996,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":5082996,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4946878,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2130760,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1985421,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2386637,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":2386637,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":2386637,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":2386637,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":2386637,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2081940,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4629696,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4351617,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3205460,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3205460,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3205460,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":3205460,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3159531,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3516534,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1780577,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1597855,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2559827,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":2559827,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":2559827,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":2559827,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":2559827,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2427390,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":436471,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":438739,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3864623,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3767167,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3680997,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3460103,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3780512,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":3732560,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":470152,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation":{"label":"Disposal Group, Including Discontinued Operation, Liabilities","description":"Amount classified as liabilities attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2011-12-31","val":250016,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":250015,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-09-30","val":603067,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":600571,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":579835,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":322262,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":319937,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":319787,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":320702,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":320056,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":320056,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":320056,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"}]}},"LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent":{"label":"Disposal Group, Including Discontinued Operation, Liabilities, Current","description":"Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":250016,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":250015,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-09-30","val":603067,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":600571,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":600571,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":579835,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":322262,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":319937,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":319787,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":319787,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":320702,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":320056,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":320056,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":320056,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":320056,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":320056,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":320056,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":320056,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"LineOfCredit":{"label":"Long-term Line of Credit","description":"The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2014-12-31","val":2071495,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q4I"},{"end":"2015-09-30","val":2261495,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1981495,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2081495,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1546495,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1785795,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":1785795,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":1785795,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":1785795,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":1785795,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2610795,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2670000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3070000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1879047,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":1879047,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":1879047,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":1879047,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":1879047,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1596072,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1307954,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1544217,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2025592,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":2025592,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":2025592,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":2025592,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":2025592,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2794903,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1811719,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1162145,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1274299,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LineOfCreditFacilityAmountOutstanding":{"label":"Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)","description":"Amount borrowed under the credit facility as of the balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":800000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":800000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":800000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":800000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":800000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2174493,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"LineOfCreditFacilityCurrentBorrowingCapacity":{"label":"Line of Credit Facility, Current Borrowing Capacity","description":"Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.","units":{"USD":[{"end":"2018-12-31","val":285000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-03-31","val":343000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1000000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1000000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":810000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LineOfCreditFacilityInterestRateAtPeriodEnd":{"label":"Line of Credit Facility, Interest Rate at Period End","description":"The effective interest rate at the end of the reporting period.","units":{"pure":[{"end":"2019-06-30","val":0.0569,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0.0536,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"}]}},"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":"2017-12-29","val":450000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-29","val":450000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q4I"}]}},"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":"2013-06-30","val":521882,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2019-06-30","val":1009876,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1013270,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"}]}},"LinesOfCreditCurrent":{"label":"Line of Credit, Current","description":"The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2012-06-30","val":500000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":800000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2014-12-31","val":2071495,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":2071495,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"}]}},"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":"2015-12-31","val":4058632,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4842483,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":6729047,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":4346194,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":4346194,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":4346194,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q4I"},{"end":"2018-03-31","val":4258104,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4157876,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":4057485,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3946878,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3849523,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3780512,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":3732560,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":3636819,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"LongTermDebtAndCapitalLeaseObligations":{"label":"Long-term Debt and Lease Obligation","description":"Amount of long-term debt and lease obligation, classified as noncurrent.","units":{"USD":[{"end":"2011-12-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q4I"},{"end":"2012-03-31","val":417885,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"}]}},"LongTermDebtCurrent":{"label":"Long-term Debt, Current Maturities","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2017-12-31","val":367779,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":367779,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":367779,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q4I"},{"end":"2018-03-31","val":393481,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":390709,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":376488,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":389420,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q4I"},{"end":"2019-03-31","val":389420,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":{"label":"Long-Term Debt, Maturity, after Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after 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":"2015-12-31","val":30880,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":20376,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and 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":"2015-12-31","val":1125353,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2299397,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2648095,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":{"label":"Long-Term Debt, Maturity, Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in 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":"2015-12-31","val":118175,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":520782,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":{"label":"Long-Term Debt, Maturity, Year Four","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth 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":"2015-12-31","val":198707,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":541616,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":{"label":"Long-Term Debt, Maturity, Year Three","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third 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":"2015-12-31","val":394214,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":516975,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3623809,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second 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":"2015-12-31","val":2191303,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":943337,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":457143,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"LongTermDebtNoncurrent":{"label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2013-06-30","val":1177905,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1083903,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":3978415,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3864623,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3767167,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3680997,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3557458,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3460103,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"}]}},"LongTermLineOfCredit":{"label":"Long-term Line of Credit, Noncurrent","description":"The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2014-12-31","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":2261495,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1511495,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1981495,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"}]}},"LongTermNotesPayable":{"label":"Notes Payable, Noncurrent","description":"Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.","units":{"USD":[{"end":"2018-12-31","val":3557458,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"}]}},"MachineryAndEquipmentGross":{"label":"Machinery and Equipment, Gross","description":"Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.","units":{"USD":[{"end":"2011-12-31","val":11696124,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":12298011,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":12298011,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":12298011,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":12298011,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":12298011,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":12578110,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":13188699,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":13492740,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":13734528,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":13734528,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":13734528,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":13734528,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":13734528,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":13873214,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":13932828,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":14402503,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":14608949,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":14608949,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":14608949,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":14608949,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":14608949,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":14679442,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":14848484,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":15002714,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":15168377,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":15168377,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":15168377,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":15168377,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":15285910,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":16330084,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":16724913,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"NetCashProvidedByUsedInContinuingOperations":{"label":"Net Cash Provided by (Used in) Continuing Operations","description":"The increase (decrease) in cash associated with the entity's continuing operating, investing, and financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":2073969,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":1255251,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":278377,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":477708,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"NetCashProvidedByUsedInDiscontinuedOperations":{"label":"Net Cash Provided by (Used in) Discontinued Operations","description":"Increase (decrease) in cash associated with the entity's discontinued operations.","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":185573,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":102972,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":72021,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":30882,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"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":"2010-01-01","end":"2010-06-30","val":-161328,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":-336461,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":-336461,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-168236,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-168236,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-168236,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-336472,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-336472,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-344659,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-344659,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":439150,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":178841,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1327164,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":1327164,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":1562619,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":1562619,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":1497450,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":1497450,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-227840,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-227840,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":545749,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":545749,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":844543,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":844543,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":2083302,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":2083302,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-83688,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-83688,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-534374,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-534374,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-795349,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-795349,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-815475,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-815475,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":133329,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":133329,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":522316,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":522316,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":251020,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":251020,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-253856,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-253856,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":376327,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":874897,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":153101,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":814139,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":814139,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":1013324,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1033341,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":1304804,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":1732758,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":1732758,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-735735,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-735735,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-1140458,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-1140458,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":-1023981,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-1023981,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-664891,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-664891,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":655025,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":7556,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":-706304,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":-708436,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-09-30","val":-336472,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-344659,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":178841,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":654892,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":930722,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":930722,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":1497450,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":1497450,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-186657,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-186657,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":600751,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":600751,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":844543,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":844543,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":2083302,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":2083302,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-83688,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-83688,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-534374,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-534374,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-795349,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-795349,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-815475,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-815475,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":133329,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":522316,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":251020,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":-253856,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":376327,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":874897,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":153101,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-03-31","val":1013324,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1033341,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":1304804,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"}]}},"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":"2010-01-01","end":"2010-06-30","val":-824512,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":-1064061,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":-1600881,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-402647,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-780982,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-780982,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":-1444714,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-1444714,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-3186060,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-3186060,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-506515,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-252232,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-998909,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-998909,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-1072083,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-1072083,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-1238782,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-1238782,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-17582,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-17582,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-414604,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-414604,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-948420,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-948420,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-1351089,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-1351089,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-392041,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-392041,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-813084,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-813084,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-1082378,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-1082378,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1506744,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-1506744,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-226447,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-226447,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-768985,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-768985,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":-1042823,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-1042823,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-1153017,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-1153017,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-373259,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-960144,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-1069325,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":-1367296,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-1367296,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-475657,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-751642,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-863423,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-919328,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-919328,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-95536,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-95536,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-181702,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-181702,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":-459149,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-459149,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":-796185,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-796185,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-105727,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-139064,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":534008,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":526805,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-09-30","val":-1271807,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":-2905696,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":173666,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-482307,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-587602,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-587602,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-772552,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-772552,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-96396,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-96396,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-735122,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-735122,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-1232720,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-1232720,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-1599081,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-1599081,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-392041,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-392041,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-813084,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-813084,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":-1082378,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":-1082378,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1506744,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":-1506744,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-226447,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-768985,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":-1042823,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":-1153017,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-373259,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-960144,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":-1069325,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-03-31","val":-475657,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-751642,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":-863423,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"}]}},"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":"2010-01-01","end":"2010-06-30","val":150533,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":847755,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":2183115,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-969354,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":524655,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":524655,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":254500,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":234744,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":926488,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-805077,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-799051,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1333062,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-1333063,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":-1498361,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-1498361,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":-1108301,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":78326,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":78326,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-324328,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-324328,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":55389,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":55389,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-489528,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-489528,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":21702,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":21702,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":828207,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":828207,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":1455692,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1455692,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":1780342,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1780342,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":275102,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":275102,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":322045,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":322045,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":846243,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":846243,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1469766,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":1469766,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-55060,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":339250,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":850552,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":661247,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":661247,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-652906,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-324011,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":-297156,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":-236823,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-236823,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-111752,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-111752,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":365172,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":365172,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":528982,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":528982,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":505803,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":505803,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-549329,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":130296,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":171084,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":180419,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2011-09-30","val":1541809,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":2632996,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-166306,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":433439,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":1016231,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":1016230,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":687842,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":687842,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":124504,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":124504,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-14027,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-14027,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":332604,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":332604,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":-212163,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-212163,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":23211,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":23211,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":829716,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":829716,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":1457201,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1457201,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":1781851,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1781851,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":275102,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":322045,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-09-30","val":846243,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":1469766,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-55060,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":339250,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":880952,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-03-31","val":-652906,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-324011,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":-297156,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"}]}},"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":"2010-01-01","end":"2010-06-30","val":321298,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":218687,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":440826,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":119528,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":515282,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":27133,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-227411,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-227411,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":-254544,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-254544,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-301424,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":-301424,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-74013,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-74013,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-1337472,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":-1308674,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-375385,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-435919,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1415635,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-1481003,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-1040249,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":-1045083,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-4884758,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-4929611,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-3469124,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-3448607,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-6137934,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-6137934,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-5671,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-5671,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-2895861,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-2895861,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-2890191,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-2890191,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-3461413,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-3461413,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-565551,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-565551,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-3538330,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-3538330,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":256717,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":256717,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":497176,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":497176,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":240460,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":240460,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":626822,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":626822,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":129645,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":659209,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":659209,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":108062,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":108062,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":223288,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":223288,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":115226,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-42339,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-42339,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-265627,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-429166,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-429166,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-384148,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-384148,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-322035,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":62113,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-390597,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-390597,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":-68562,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-68562,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-712462,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-213715,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":298436,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-03-31","val":-213715,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-809890,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-511453,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-990757,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-990757,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-180867,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-180867,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1355096,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-1355096,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-03-31","val":-179647,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":-145966,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":33681,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-223137,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-223137,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":-77171,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":-77171,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-1098307,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-1098307,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-518773,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2019-01-01","end":"2019-03-31","val":-518773,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-03-31","val":-518773,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-989731,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-470958,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-470958,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-1496708,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":-506977,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-2141134,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"NetIncomeLossAvailableToCommonStockholdersDiluted":{"label":"Net Income (Loss) Available to Common Stockholders, Diluted","description":"Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":-1481003,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-1045083,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2013-01-01","end":"2013-06-30","val":-2895861,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-2890191,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"}]}},"NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1":{"label":"Noncash or Part Noncash Acquisition, Fixed Assets Acquired","description":"\"The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but 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":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":260309,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":476687,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-12-31","val":476687,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":272500,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":272500,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"}]}},"NonoperatingIncomeExpense":{"label":"Nonoperating Income (Expense)","description":"The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":-7920,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-68,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-8276,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-359,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-06-30","val":7769,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":7905,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":8063,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":293,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"}]}},"NotesPayable":{"label":"Notes Payable","description":"Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2018-12-31","val":3946878,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3557458,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"NotesPayableCurrent":{"label":"Notes Payable, Current","description":"Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.","units":{"USD":[{"end":"2018-12-31","val":389420,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3557458,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"OperatingExpenses":{"label":"Operating Expenses","description":"Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":1064658,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2191898,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":1127243,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4693354,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":2501454,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":6013878,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":1023907,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":1023907,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1917384,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":1917384,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":893477,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":893477,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2985623,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":2985623,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":1068239,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":1068239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3990081,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":3990081,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":983130,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":983130,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1852467,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":1852467,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":869337,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":869337,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2813316,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":2813316,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":960849,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":960849,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":3746941,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":3746941,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":998760,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":998760,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1849170,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":1849170,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":850410,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":850410,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2768741,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":2768741,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":919571,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":919571,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3683170,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":3683170,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1009824,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":1009824,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1829235,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":1829235,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":819411,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":819411,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2639163,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":2639163,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":809928,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":809928,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":3401522,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":3401522,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":911998,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":911998,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1727841,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":1727841,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":815842,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":815842,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":2540014,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":2540014,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":812173,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":812173,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":3310768,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":3310768,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":822496,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":822496,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1582425,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":1582425,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":759929,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":759929,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2306007,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":2306007,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":723582,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":723582,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":3081272,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":3081272,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1061194,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1953103,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":891909,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2850369,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":897265,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":3477311,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":286329,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":119840,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":483507,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":197178,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":575619,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":58695,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-357685,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-357685,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":-416380,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-416380,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-485939,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":1126014,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-128254,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":537704,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-1218783,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":1143408,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-631660,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":245403,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-2212732,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":-252362,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-1581071,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":-497768,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1918649,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-1992723,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-1774241,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-1740357,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-3219899,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-3219899,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-71759,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-71759,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-407570,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":-407570,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-335811,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":-335811,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-925998,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-925998,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-518428,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":-518428,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-957418,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-957418,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":328156,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":328156,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":592842,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":592842,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":264686,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":264686,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":792822,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":792822,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":199980,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":199980,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":891110,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":891110,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-202364,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":-202364,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-20620,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-20620,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":181744,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":181744,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-222678,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-222678,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-202058,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-202058,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-520332,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-520332,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-324705,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":-324705,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-199366,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":-199366,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":125339,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":125339,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-198534,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-198534,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":832,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":832,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-502831,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-502831,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-173903,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":-173903,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-692630,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":-692630,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":-434005,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":-434005,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-812558,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":-812558,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-119928,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-119928,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1018390,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":-1018390,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-91136,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-91136,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":26755,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":26755,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":117891,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":117891,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":38197,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":38197,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":11442,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":11442,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-757580,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-757580,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-407367,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-788830,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-381463,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-1168698,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":-379867,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-1715416,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2012-12-31","val":460773,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"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":"2012-12-31","val":207591,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"},{"end":"2014-12-31","val":7287,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":7287,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":24036,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":19191,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-12-31","val":20222,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-12-31","val":18851,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2017-12-31","val":10028,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","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":"2012-12-31","val":45591,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"},{"end":"2014-12-31","val":1602,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"},{"end":"2017-12-31","val":17191,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-12-31","val":10630,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"}]}},"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":"2012-12-31","val":207591,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"},{"end":"2014-12-31","val":7287,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1602,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":24036,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":17191,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-12-31","val":18222,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-12-31","val":10996,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q4I"}]}},"OperatingLossCarryforwards":{"label":"Operating Loss Carryforwards","description":"Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.","units":{"USD":[{"end":"2017-12-31","val":12195000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":11300000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":12885000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":12988000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2011-12-31","val":87978,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":214596,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":214596,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":214596,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":214596,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":214596,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":256517,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":309154,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":258767,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":185595,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":185595,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":185595,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":185595,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":185595,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":172498,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":119467,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":104841,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":570357,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":570357,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":570357,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":570357,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":570357,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":401952,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":343555,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":340032,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":268835,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":268835,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":268835,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":268835,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":243319,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":239480,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":216233,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":237305,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":156231,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":156231,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":156231,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":156231,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":156231,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":135345,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10629,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":9146,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10289,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":10289,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":10289,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":10289,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":10289,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":6135,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4135,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5135,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":5140,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":5140,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":5140,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":5140,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":5140,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":5140,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":5145,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":5145,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":5645,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":42502,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":23690,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":23690,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-1829,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":23690,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":9347,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":-1829,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax","description":"Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":-42502,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-42502,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)","description":"This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. 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":"2011-06-30","val":23690,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":-1829,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":23690,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":-1829,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"}]}},"OtherExpenses":{"label":"Other Expenses","description":"Amount of expense classified as other.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":-67837,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-91680,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":-23842,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2015-01-01","end":"2015-03-31","val":-52184,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-118702,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":-66518,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2"}]}},"OtherIncome":{"label":"Other Income","description":"Amount of revenue and income classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":148728,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":18190,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":13881,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-9319,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-33200,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-10683,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-199776,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-189094,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-250877,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-51100,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-293749,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-293749,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-67837,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-91680,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-23842,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-162014,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":-70335,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-227954,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"OtherIntangibleAssetsNet":{"label":"Other Intangible Assets, Net","description":"Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":96446,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":96446,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":96446,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":120612,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":136726,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":149763,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":149763,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":149763,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":149763,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":149763,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2012-03-31","val":180672,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":238545,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":193211,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":156091,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":156091,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":156091,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":156091,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":187119,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":188347,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":183467,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"OtherLiabilitiesCurrent":{"label":"Other Liabilities, Current","description":"Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2013-12-31","val":436775,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":436775,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":436775,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q4I"},{"end":"2014-03-31","val":477715,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":773870,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":713225,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":405975,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":405975,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":405975,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":405975,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":687109,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":610014,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":473863,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":275777,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":275777,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":275777,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":275777,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":275777,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":374769,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":359699,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":310390,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":333361,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":333361,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":333361,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":333361,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":333361,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":434847,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":439474,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":445338,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":320065,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":320065,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":320065,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":320065,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":320065,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":374877,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":426793,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":598962,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":459108,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":459108,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":459108,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":459108,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":459108,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":798180,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":633795,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":785449,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":383836,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"OtherNonoperatingIncome":{"label":"Other Nonoperating Income","description":"Amount of income related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2015-01-01","end":"2015-06-30","val":16831,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":3322,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":19864,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3033,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-06-30","val":827,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":50,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1029,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":202,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":144769,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":144647,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":142319,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":-2450,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":124663,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-10562,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-5211,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":5351,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-970,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":12220,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":4241,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":2749,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-134889,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":13655,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-7625,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":-7625,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-14806,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":-7178,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-23131,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":-23131,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":-8328,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":-8328,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-33200,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":-9319,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-10683,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":-135,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-199776,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":7769,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-189094,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":7905,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-250877,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":8063,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":-51100,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":293,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":25646,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":25646,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2312,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-2312,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":48998,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":-48998,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":46687,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-46687,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":44900,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":44900,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":-4099,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":-4099,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":46184,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":46184,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-13509,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":13509,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-16831,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":-118702,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":-3322,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":-66518,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":19864,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":-182271,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3033,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":-63569,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-10212,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-10212,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":777,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":777,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-122669,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":827,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":-63226,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":50,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-192063,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1029,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":-69394,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":202,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":50131,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":50131,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":24089,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":24089,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":34070,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":34070,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":9981,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":9981,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":56966,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":56966,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":22896,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":22896,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":57419,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":57419,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":8501,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":8501,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":20307,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":20307,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":11806,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":11806,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":33133,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":33133,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":12826,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":12826,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":52878,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":52878,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-429,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":21876,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":22305,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":4543,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":-17334,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":5826,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"OtherNonrecurringExpense":{"label":"Other Nonrecurring Expense","description":"Amount of other expense that is infrequent in occurrence or unusual in nature.","units":{"USD":[{"start":"2017-07-01","end":"2017-09-30","val":77606,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"}]}},"PaymentsForLoans":{"label":"Payments for Loans","description":"Cash payments for and related to principal collection on loans related to operating activities.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":153663,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"PaymentsForProceedsFromPreviousAcquisition":{"label":"Payments for (Proceeds from) Previous Acquisition","description":"The net cash inflow or outflow associated with the aggregate amount of adjustment to the purchase price of a previous acquisition.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-16357,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":-16357,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"}]}},"PaymentsForProceedsFromProductiveAssets":{"label":"Payments for (Proceeds from) Productive Assets","description":"The net cash outflow or inflow from purchases, sales and disposals of property, plant and equipment and other productive assets, including intangibles.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":840869,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":1080418,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-03-31","val":402647,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":780982,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":780982,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":1271807,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":1962285,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2012-01-01","end":"2012-03-31","val":810400,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1302794,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":893887,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"PaymentsOfDebtIssuanceCosts":{"label":"Payments of Debt Issuance Costs","description":"The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":20863,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":20863,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":153806,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":153806,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":26570,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":26570,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":28889,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":28889,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":34389,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":34389,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":42389,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":42389,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"PaymentsOfDividends":{"label":"Payments of Dividends","description":"Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":161328,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":336461,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-03-31","val":168236,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":168236,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":168236,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":336472,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":336472,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2012-01-01","end":"2012-03-31","val":84119,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":84119,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":84119,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"PaymentsToAcquireProductiveAssets":{"label":"Payments to Acquire Productive Assets","description":"The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":888649,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":888649,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"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":"2012-01-01","end":"2012-03-31","val":97710,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":523269,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":786192,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":523269,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":893887,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":1294802,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":63568,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":63568,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":703737,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":703737,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1200346,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":1200346,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":1610152,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":1610152,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":391738,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":391738,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":834971,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":834971,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":1104265,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":1104265,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":1514678,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1514678,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":242390,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":242390,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":784157,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":784157,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":1072347,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":1072347,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1182541,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":1182541,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":373259,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":373259,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":960144,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":960144,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":1069325,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1069325,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":1354091,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1354091,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":493576,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":493576,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":759546,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":759546,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":868716,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":868716,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":924621,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":924621,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":95536,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":95536,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":181702,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":181702,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":456488,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":456488,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":801884,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":801884,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":105727,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":139064,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":161928,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":169131,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"PreferredStockParOrStatedValuePerShare":{"label":"Preferred Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.","units":{"USD/shares":[{"end":"2010-12-31","val":1,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":1,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":1,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":1,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":1,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":1,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":1,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":1,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":1,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":1,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":1,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":1,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":0.001,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.001,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.001,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0.001,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":0.001,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":0.001,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":0.001,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0.001,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.001,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.001,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.001,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0.001,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":0.001,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":0.001,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":0.001,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0.001,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.001,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.001,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0.001,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":0.001,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":0.001,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":0.001,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":0.001,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0.001,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0.001,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0.001,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0.001,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":0.001,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":0.001,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":0.001,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":0.001,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":0.001,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":0.001,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0.001,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0.001,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":2000000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":2000000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2000000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2000000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2000000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":2000000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":2000000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":2000000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2000000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2000000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2000000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2000000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":2000000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":2000000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":2000000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":2000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2000000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2000000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2000000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":2000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":2000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":2000000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":2000000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":2000000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":2000000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2000000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2000000,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2000000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2000000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":2000000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2000000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":2000000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":2000000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2000000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2000000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2000000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2000000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":2000000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":2000000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":2000000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":2000000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2000000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2000000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2000000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2000000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":2000000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":2000000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":2000000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":2000000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2000000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2000000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2000000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2000000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":2000000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":2000000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":2000000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":2000000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2000000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2000000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2000000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2000000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"PreferredStockSharesIssued":{"label":"Preferred Stock, Shares Issued","description":"Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.","units":{"shares":[{"end":"2010-12-31","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":0,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":0,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2010-12-31","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2012-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"}]}},"PreferredStockValue":{"label":"Preferred Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"PrepaidExpenseAndOtherAssetsCurrent":{"label":"Prepaid Expense and Other Assets, Current","description":"Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":397010,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":397010,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":397010,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":356258,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":430915,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":668482,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":668482,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":668482,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":495889,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":626298,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1109653,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1348816,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":745531,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":574999,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":574999,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":574999,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":574999,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":574999,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":452608,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":509512,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":689596,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":513197,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":513197,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":513197,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":513197,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":513197,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":487756,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":627375,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":647957,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":519582,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":519582,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":519582,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":519582,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":519582,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":616367,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":595960,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":796486,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":614129,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":614129,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":614129,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":614129,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":593716,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":637529,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":577274,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":745082,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":614362,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":614362,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":614362,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":614362,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":614362,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":577146,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":610204,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":556503,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":460954,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":460954,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":460954,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":460954,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":460954,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":326010,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":246474,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":531706,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":389390,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":389390,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":389390,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":389390,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":389390,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":367869,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":202245,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":279215,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":257859,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"PrepaidTaxes":{"label":"Prepaid Taxes","description":"Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":166694,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":166694,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":166694,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":49194,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":94905,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":188640,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2011-12-31","val":188640,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":188640,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":188640,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":188640,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2012-03-31","val":193595,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":193595,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":193596,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":194912,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2012-12-31","val":194912,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":194912,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":194912,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"ProceedsFromIncomeTaxRefunds":{"label":"Proceeds from Income Tax Refunds","description":"The amount of cash received during the period as refunds for the overpayment of taxes.","units":{"USD":[{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":66951,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":66951,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":198791,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":132,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"ProceedsFromIssuanceOfSubordinatedLongTermDebt":{"label":"Proceeds from Issuance of Subordinated Long-term Debt","description":"The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":500000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":500000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"},{"start":"2019-01-01","end":"2019-06-30","val":450000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":500000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":500000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ProceedsFromIssuanceOfWarrants":{"label":"Proceeds from Issuance of Warrants","description":"The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":83050,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":83050,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"}]}},"ProceedsFromLinesOfCredit":{"label":"Proceeds from Lines of Credit","description":"Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":500000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":500000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":800000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":800000,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":1374493,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":2399493,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1879047,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"ProceedsFromLongTermCapitalLeaseObligations":{"label":"Proceeds from Long-term Capital Lease Obligations","description":"The cash inflow from proceeds received from lessor related to a long-term capital lease obligation.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-06-30","val":935232,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":262960,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"ProceedsFromLongTermLinesOfCredit":{"label":"Proceeds from Long-term Lines of Credit","description":"The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-06-30","val":1500000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":1500000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"ProceedsFromRepaymentsOfLinesOfCredit":{"label":"Proceeds from (Repayments of) Lines of Credit","description":"The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).","units":{"USD":[{"start":"2012-01-01","end":"2012-09-30","val":800000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":-800000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"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":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":523269,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":303885,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":303885,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":303885,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":306285,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":306285,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":306285,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":306285,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1528,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":1528,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":44337,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":44337,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-303,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":24500,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":24500,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":24500,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":24500,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":24500,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":24500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":17000,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":17000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":20700,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":20700,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":35700,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":35700,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":35700,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":35700,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":23200,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":23200,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":23200,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":23200,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":34600,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":34600,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":34600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":34600,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":8360,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":8360,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-09-30","val":32602,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":32602,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ProceedsFromStockOptionsExercised":{"label":"Proceeds from Stock Options Exercised","description":"Amount of cash inflow from exercise of option under share-based payment arrangement.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":25575,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":25575,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":97022,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":97022,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":100692,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":100692,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3880,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":3880,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":28611,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":28611,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":28611,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":28611,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":80103,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":80103,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":51150,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":51150,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":51150,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":51150,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":51150,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":51150,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":51150,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":51150,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"ProceedsFromWarrantExercises":{"label":"Proceeds from Warrant Exercises","description":"The cash inflow associated with the amount received from holders exercising their stock warrants.","units":{"USD":[{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":35100,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":35100,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":105300,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":105300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"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":"2011-12-31","val":17809991,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":18238531,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":18238531,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":18238531,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":18238531,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":18238531,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":18544071,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":19184240,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":19616644,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":19829065,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":19829065,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":19829065,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":19829065,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":19829065,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":20220803,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":20505227,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":20770020,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":21180433,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":21180433,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":21180433,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":21180433,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":21180433,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":21240957,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":21765585,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":21979855,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":21357238,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":21357238,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":21357238,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":21357238,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":21357238,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":21730497,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":22237659,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":22346839,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":22631605,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":22631605,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":22631605,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":22631605,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":22631605,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":22786202,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":23061064,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":23080056,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":23135453,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":23135453,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":23135453,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":23135453,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":23135453,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":23307250,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":23393415,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":23441158,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":23677016,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":23677016,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":23677016,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":23677016,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":23677016,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":23751340,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":23774476,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":23709617,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":23716816,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":6691817,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":6691817,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":6691817,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":6720534,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":7447154,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8587669,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":8587669,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":8587669,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":7641309,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":7641309,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":8594963,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9014814,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":7322589,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7158512,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":7158512,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":7158512,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":7158512,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":7158512,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7136018,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":7415035,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":7545275,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":7579556,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":7579556,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":7579556,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":7579556,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":7579556,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":7593779,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7672749,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7569024,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":7618901,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":7618901,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":7618901,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":7618901,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":7618901,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7499932,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7669062,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7573059,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6626069,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":6626069,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6626069,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":6626069,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":6626069,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":6638327,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6841652,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6544711,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6440911,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":6440911,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":6440911,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":6440911,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":6440911,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6528482,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6396582,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6089496,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5744039,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":5744039,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":5744039,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":5744039,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":5744039,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":5521049,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":5236305,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5232945,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":5131773,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":5131773,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":5131773,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":5131773,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":5131773,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":4832482,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":4483474,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":4148730,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":3801916,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ProvisionForDoubtfulAccounts":{"label":"Accounts Receivable, Credit Loss Expense (Reversal)","description":"Amount of expense (reversal of expense) for expected credit loss on accounts receivable.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":30000,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":19000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":34000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":5000,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-54678,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-06-30","val":-54678,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-09-30","val":-40480,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-09-30","val":-40480,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-12-31","val":-25480,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-25480,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2012-01-01","end":"2012-03-31","val":15000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":25500,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-06-30","val":30000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-06-30","val":51000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":45000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-09-30","val":45000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-12-31","val":58602,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-77098,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":-77098,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"ProvisionForOtherLosses":{"label":"Provision for Other Losses","description":"Amount of expense related to other loss.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":185000,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-16200,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"}]}},"PublicUtilitiesPropertyPlantAndEquipmentVehicles":{"label":"Public Utilities, Property, Plant and Equipment, Vehicles","description":"Period end book value of vehicles owned by the public utility.","units":{"USD":[{"end":"2011-12-31","val":160140,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-12-31","val":94227,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2012-12-31","val":94227,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":94227,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":94227,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2013-03-31","val":94227,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":94227,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":94227,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"}]}},"RepaymentsOfLongTermCapitalLeaseObligations":{"label":"Repayments of Long-term Capital Lease Obligations","description":"The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-06-30","val":23949,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":48119,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"}]}},"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":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-06-30","val":45043,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":136091,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"}]}},"RepaymentsOfLongTermLinesOfCredit":{"label":"Repayments of Long-term Lines of Credit","description":"The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.","units":{"USD":[{"start":"2019-04-01","end":"2019-06-30","val":700000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2019Q2"}]}},"RepaymentsOfMediumTermNotes":{"label":"Repayments of Medium-term Notes","description":"The cash outflow to pay off borrowing used to receive debt funding on a regular basis with maturities ranging from 5-10 years.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":435372,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":526594,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":526594,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":144823,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":291104,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":477900,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":587799,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":587799,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":126125,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":253145,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":253145,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":381682,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":381682,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":2606688,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2606688,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":76190,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":190476,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":190476,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":304762,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":304762,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":419047,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":419047,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":114286,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":228571,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":342857,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":457143,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"RepaymentsOfSubordinatedDebt":{"label":"Repayments of Subordinated Debt","description":"The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":50000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":50000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2016-01-01","end":"2016-12-31","val":50000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2016"},{"end":"2017-12-29","val":100000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-29","val":100000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-29","val":100000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-12-31","val":100000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":100000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"end":"2018-01-02","val":350000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2018-01-02","val":350000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2018-01-02","val":350000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q4I"},{"start":"2018-01-01","end":"2018-03-31","val":350000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":350000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":350000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":350000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":350000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":350000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":350000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":350000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"}]}},"ResearchAndDevelopmentExpense":{"label":"Research and Development Expense","description":"The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":102811,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":47138,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":179000,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":76189,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":254501,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":81208,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":187864,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":187864,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":106656,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":106656,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":313437,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":287037,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":125573,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":99173,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":461225,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":407960,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":136740,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":133409,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":268564,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":265232,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":131823,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":131823,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":380266,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":380266,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":115034,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":115034,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":510463,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":510463,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":59402,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":59402,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":120695,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":120695,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":61293,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":61293,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":251772,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":251772,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":131077,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":131077,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":335309,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":335309,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":96827,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":96827,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":182521,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":182521,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":85694,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":85694,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":292962,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":292962,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":110441,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":110441,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":408867,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":408867,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":92561,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":92561,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":154785,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":154785,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":62224,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":62224,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":202792,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":202792,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":48007,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":48007,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":241100,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":241100,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":25843,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":25843,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":50258,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":50258,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":24415,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":24415,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":74792,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":74792,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":24534,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":24534,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":97234,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":97234,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":29296,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":29296,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":57640,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":57640,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":28344,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":28344,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":84427,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":84427,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":26787,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":26787,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":111014,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":111014,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":27921,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":27921,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":54722,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":54722,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":26801,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":26801,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":80094,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":80094,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":25372,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":25372,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":106814,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":106814,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":27177,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":53778,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":26601,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":80357,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":26578,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":80357,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"RestrictedCashAndCashEquivalents":{"label":"Restricted Cash and Cash Equivalents","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage. 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. Cash equivalents include, but are not limited to, 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.","units":{"USD":[{"end":"2010-12-31","val":517571,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":517571,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":517571,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":0,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011Q4I"}]}},"RestrictedCashAndCashEquivalentsAtCarryingValue":{"label":"Restricted Cash and Cash Equivalents, Current","description":"Amount of cash and cash equivalents 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. Cash equivalents include, but are not limited to, 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.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":0,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-06-30","val":1000000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1000000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1000000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1000000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1000000,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1000000,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1000000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014Q4I"}]}},"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":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":350000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"}]}},"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":9790304,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":9790304,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":9790304,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9394657,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":9152408,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8108173,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":8108173,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":8108173,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":8108173,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":8061712,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":7648669,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6608419,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3139296,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1839659,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":1839659,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":1839659,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":1839659,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":1839659,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1833988,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-1056202,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-1621754,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-1698671,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":-1698671,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":-1698671,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":-1698671,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":-1698671,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":-1441954,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":-1201493,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":-1071849,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":-1039462,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":-1039462,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":-1039462,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":-1039462,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":-1039462,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":-931401,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":-816174,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":-1081801,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":-1468628,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":-1468628,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":-1468628,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":-1468628,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":-1468628,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":-1852776,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":-1790663,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":-1859225,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-2181090,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":-2181090,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":-2181090,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":-2181090,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":-2181090,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":-2394805,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":-2990980,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":-3171847,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":-3536186,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":-3536186,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":-3536186,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":-3536186,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":-3536186,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":-3729824,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":-3696143,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":-3773314,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":-4648484,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":-4648484,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":-4648484,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":-4648484,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":-4648484,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":-5167257,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":-5638215,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":-6145192,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":-6789618,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"RevenueFromContractWithCustomerExcludingAssessedTax":{"label":"Revenue from Contract with Customer, Excluding Assessed Tax","description":"Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.","units":{"USD":[{"start":"2019-01-01","end":"2019-03-31","val":122610,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":535509,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":546889,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"}]}},"Revenues":{"label":"Revenues","description":"Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":11367639,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":5782279,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":17255916,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":5888277,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":6183065,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":12201394,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":12201394,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":6018329,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":6018329,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":18990368,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":18929495,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":6788974,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":6756850,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":6305182,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":5831622,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":11282167,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":10626123,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":4976985,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":4794501,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":15881161,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":15585157,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":4839812,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":4959034,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":5643189,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":10523634,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":4880445,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":15251851,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":4728217,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-12-31","val":24070292,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":21495184,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":21495184,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":19638217,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":19638217,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":5264977,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":10655703,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":5390726,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":15563791,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4908088,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":20102662,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":20102662,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":5119048,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":5119048,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10439474,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":10439474,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":5320426,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":5320426,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":15441134,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":15441134,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":5001660,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":5001660,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":19564981,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":19564981,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":4685630,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":9577820,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":4892190,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":13909101,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":4331280,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":17499364,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"SaleLeasebackTransactionDeferredGainGross":{"label":"Sale Leaseback Transaction, Deferred Gain, Gross","description":"The amount of the gain recorded in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller to be recognized in future periods.","units":{"USD":[{"end":"2010-12-31","val":17868,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q4I"},{"end":"2010-12-31","val":17868,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-06-30","val":15634,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":14518,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":13401,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q4I"},{"end":"2011-12-31","val":13401,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":13401,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2012-03-31","val":12284,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":11167,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10051,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"}]}},"SaleLeasebackTransactionGrossProceeds":{"label":"Sale Leaseback Transaction, Gross Proceeds (Deprecated 2014-01-31)","description":"The gross proceeds received from the asset(s) sold in connection with the transaction involving the sale of property to another party and the lease back to the seller.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":523269,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":523269,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-04-01","end":"2012-06-30","val":888649,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012Q2"}]}},"SalesRevenueNet":{"label":"Revenue, Net (Deprecated 2018-01-31)","description":"Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":23359283,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":28749,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":15172,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":24256373,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":240818,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":151777,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":20642570,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5643189,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":10523634,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":4880445,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":15251851,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":4728217,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":21341052,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":21341052,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":6029843,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":6029843,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":12283600,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":12283600,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":6253757,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":6253757,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":18329472,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":18329472,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":6045872,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":6045872,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":24070292,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":24070292,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":5858342,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":5858342,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":11517436,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":11517436,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":5659094,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":5659094,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":16743571,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":16743571,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":5226135,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":5226135,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":21495184,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":21495184,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":4983281,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":4983281,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10112294,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":10112294,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":5129013,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":5129013,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":14825417,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":14825417,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":4713123,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":4713123,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":19638217,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":19638217,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":5264977,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":10655703,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":5390726,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":15563791,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":4908088,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":20102662,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"}]}},"SellingAndMarketingExpense":{"label":"Selling and Marketing Expense","description":"The aggregate total amount of expenses directly related to the marketing or selling of products or services.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":413626,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":255637,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":673457,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":259831,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":996183,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":360013,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":773530,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":773530,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":413517,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":413517,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":1224440,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":694273,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":450910,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":196768,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1745856,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":950934,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":629965,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":238590,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1319933,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":506094,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-04-01","end":"2012-06-30","val":689968,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":267504,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":692272,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":692272,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-07-01","end":"2012-09-30","val":186178,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":186178,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":921045,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":921045,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":240375,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"start":"2013-01-01","end":"2013-03-31","val":240375,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":487214,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-06-30","val":487214,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":246839,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-04-01","end":"2013-06-30","val":246839,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":696712,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-09-30","val":696712,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":209498,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-07-01","end":"2013-09-30","val":209498,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":949815,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":949815,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":291672,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":291672,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":532080,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":532080,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":240408,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":240408,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":785075,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":785075,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":252995,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":252995,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1015279,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":1015279,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":257972,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":257972,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":520581,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":520581,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":262609,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":262609,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":740476,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":740476,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":219895,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":219895,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1086586,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":1086586,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":293346,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":293346,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":596910,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":596910,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":303564,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":303564,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":900189,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":900189,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":303279,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":303279,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1153044,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":1153044,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":265873,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":265873,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":500693,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":500693,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":234820,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":234820,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":671997,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":671997,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":171304,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":171304,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":841845,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":841845,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":190540,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":190540,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":394576,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":394576,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":204036,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":204036,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":583607,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":583607,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":189031,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":189031,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":730863,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":730863,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":149142,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":316385,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":167243,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":486449,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":170065,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":636167,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":57011,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-01-01","end":"2010-09-30","val":79041,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-01-01","end":"2010-12-31","val":99156,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":37235,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":61864,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":61864,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-01-01","end":"2011-09-30","val":85385,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":85385,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-01-01","end":"2011-12-31","val":109128,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"start":"2011-01-01","end":"2011-12-31","val":109128,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":37520,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"start":"2012-01-01","end":"2012-03-31","val":37520,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":64502,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":64502,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2012-01-01","end":"2012-09-30","val":84650,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-01-01","end":"2012-09-30","val":84650,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2012-01-01","end":"2012-12-31","val":112811,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2012-01-01","end":"2012-12-31","val":112811,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":14246,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":27746,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"start":"2013-01-01","end":"2013-09-30","val":40646,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"start":"2013-01-01","end":"2013-12-31","val":42611,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":33390,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":33390,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7186,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":19888,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":23416,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":29178,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":15133,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":15133,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":30591,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":30591,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":35083,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":35083,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-01-01","end":"2016-12-31","val":47256,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":47256,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":26221,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":26221,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":32417,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":32417,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":84750,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":84750,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":136653,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":136653,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":34245,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":34245,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":62937,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":62937,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":90541,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":90541,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":131918,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":131918,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":57862,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":115862,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":168112,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":219257,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate","description":"The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.0098,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0.021,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":0.021,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2014"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate","description":"The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.3124,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0.3124,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":0.3124,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2014-01-01","end":"2014-12-31","val":0.27,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.27,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate","description":"The risk-free interest rate assumption that is used in valuing an option on its own shares.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.021,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0.0098,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-09-30","val":0.0098,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2014-01-01","end":"2014-12-31","val":0.0096,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":0.0096,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number","description":"Number of equity instruments other than options outstanding, including both vested and non-vested instruments.","units":{"shares":[{"end":"2012-12-31","val":285000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":256500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant","description":"The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.","units":{"shares":[{"end":"2016-12-31","val":273000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":273000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":282000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number","description":"The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.","units":{"shares":[{"end":"2012-08-04","val":10000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2013-03-05","val":10000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q1I"},{"end":"2013-03-05","val":10000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2014-01-02","val":76800,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q4I"},{"end":"2014-01-02","val":74800,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2015-06-17","val":20000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2015Q2I"},{"end":"2016-01-04","val":34700,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2015Q4I"},{"end":"2016-01-04","val":30200,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-05-19","val":14000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2021-05-19","val":14000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-06-03","val":18000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2021Q2I"},{"end":"2021-06-03","val":18000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price","description":"The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.","units":{"USD/shares":[{"end":"2014-12-31","val":6.07,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":6.07,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":6.2,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6.6,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":6.6,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6.6,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":6.6,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":6.6,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7.33,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7.25,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":7.25,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6.9,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":6.9,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":6.9,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":6.9,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":6.9,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6.92,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6.86,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6.88,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":6.42,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":6.42,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":6.42,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":6.42,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":6.42,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":6.46,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":6.38,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":6.38,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":6.09,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":6.09,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":6.09,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":6.09,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":6.09,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":5.93,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":6.01,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":6.02,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":5.62,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value","description":"Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":80800,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":60197,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":60197,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":30600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":30600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.","units":{"USD":[{"end":"2012-08-04","val":12.42,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2013-03-05","val":23.1,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q1I"},{"end":"2013-03-05","val":23.1,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2014-01-02","val":7.15,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q4I"},{"end":"2014-01-02","val":7.15,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2015-06-17","val":4.76,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2015Q2I"},{"end":"2016-01-04","val":3.41,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2015Q4I"},{"end":"2016-01-04","val":3.41,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-05-19","val":9.86,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2021-05-19","val":9.86,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-06-03","val":5.73,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2021Q2I"},{"end":"2021-06-03","val":5.73,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period","description":"Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.","units":{"shares":[{"start":"2014-01-01","end":"2014-09-30","val":56500,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-09-30","val":2000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":2000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":2000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":2000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3"},{"start":"2019-01-01","end":"2019-06-30","val":54665,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":55664,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":55664,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price of options that were either forfeited or expired.","units":{"USD/shares":[{"start":"2015-01-01","end":"2015-09-30","val":5.02,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":4.74,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period","description":"The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.","units":{"shares":[{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":4000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":7000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":3000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":7000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":2000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":7000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":44335,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":48337,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":48337,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":51671,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures","description":"Net number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2010-01-01","end":"2010-12-31","val":91973,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010"}]}},"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":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-01-01","end":"2014-12-31","val":7500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":25000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":25000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":25000,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":25000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":62500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":62500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":5000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":5000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":45000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":45000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":195000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":90000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":90000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":90000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":195000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":195000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":7500,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":7500,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":45000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":45000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value","description":"The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.","units":{"USD/shares":[{"start":"2016-01-01","end":"2016-12-31","val":1.05,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2018-01-01","end":"2018-03-31","val":0.5,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.5,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":0.5,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number","description":"Number of options outstanding, including both vested and non-vested options.","units":{"shares":[{"end":"2012-08-04","val":10000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2013-03-05","val":10000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2013-03-05","val":10000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q1I"},{"end":"2014-01-02","val":93500,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2014-01-02","val":93500,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2013Q4I"},{"end":"2014-12-31","val":165800,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-06-17","val":60000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2015Q2I"},{"end":"2015-12-31","val":184500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":184500,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":184500,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":184500,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":184500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-01-04","val":75500,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2016-01-04","val":75500,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2016-03-31","val":169500,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":169500,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":174500,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":214500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":214500,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":214500,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":214500,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":214500,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":214500,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":210500,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":205500,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":205500,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":205500,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":205500,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":205500,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":205500,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":295500,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":293500,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":293500,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":393500,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":393500,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":393500,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":393500,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":393500,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":356665,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":297998,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":334499,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":331165,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"},{"end":"2021-05-19","val":70000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-05-19","val":62000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2021-06-03","val":90000,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2021-06-03","val":82000,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2021Q2I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price","description":"Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.","units":{"USD/shares":[{"end":"2014-12-31","val":5.58,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":5.58,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":6.05,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6.21,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":6.21,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6.21,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":6.21,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":6.21,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":6.46,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6.46,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6.4,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5.96,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":5.96,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":5.96,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":5.96,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":5.96,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":5.96,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6.04,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":6.04,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":6.04,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":6.04,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":6.04,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":6.04,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":5.36,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":5.37,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":5.37,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4.89,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":4.89,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":4.89,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":4.89,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":4.89,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":4.95,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":4.82,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":4.56,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":4.57,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value","description":"Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"USD":[{"end":"2014-12-31","val":119342,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":119342,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":144943,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":106565,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":106565,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":106565,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":106565,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":106565,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":58115,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":77575,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":13560,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":8880,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":8880,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":8880,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":8880,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":8880,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":14280,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":17980,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":17980,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":20551,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":20551,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":20551,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":20551,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":20551,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":12960,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10188,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11040,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":960,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2760,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-12-31","val":1050,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value","description":"Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"USD":[{"end":"2014-12-31","val":305124,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":305124,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":254103,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":235293,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":235293,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":235293,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":235293,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":235293,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":186843,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":186843,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":30240,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":17340,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":17340,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":17340,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":17340,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":17340,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":30470,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":28750,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":28750,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":28750,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":28750,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":28750,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":28750,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":28750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":17140,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10188,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11040,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":960,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":960,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3435,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-12-31","val":1050,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price","description":"Weighted average price at which option holders acquired shares when converting their stock options into shares.","units":{"USD/shares":[{"start":"2015-01-01","end":"2015-09-30","val":3.49,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":3.44,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":3.41,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3.41,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":3.41,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":3.41,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.","units":{"USD/shares":[{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":3.67,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":3.67,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":3.67,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2019-01-01","end":"2019-06-30","val":5.71,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":5.68,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":5.68,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.","units":{"USD/shares":[{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":3.67,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-09-30","val":4.26,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":4.26,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":3.81,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":3.81,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-12-31","val":3.81,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":4.08,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":4.06,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":4.06,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":4.04,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price","description":"Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.","units":{"USD/shares":[{"start":"2015-01-01","end":"2015-09-30","val":7.74,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-12-31","val":6.36,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":4.5,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":4.07,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2018-01-01","end":"2018-03-31","val":3.81,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":3.81,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":3.81,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-12-31","val":3.64,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2.72,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":2.72,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":2.5,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":2.5,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable","description":"The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.","units":{"shares":[{"end":"2014-12-31","val":74400,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":74400,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-09-30","val":95100,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":83500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":83500,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":83500,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":83500,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":83500,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":73500,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":92500,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":92500,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":109495,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":109495,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":109495,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":109495,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":109495,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":115495,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":116495,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":115495,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":114583,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":114583,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":114583,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":114583,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":114583,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":149826,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":152826,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":152826,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":182164,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":182164,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":182164,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":182164,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":182164,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":205487,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":150822,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":149823,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":179824,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding","description":"The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.","units":{"shares":[{"end":"2012-12-31","val":285000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":285000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":285000,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":263000,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":268000,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":226500,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2014-12-31","val":165800,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q4I"},{"end":"2015-09-30","val":167100,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares","description":"Number of non-vested options forfeited.","units":{"shares":[{"start":"2015-01-01","end":"2015-03-31","val":7500,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":7500,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":7500,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":7500,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":15500,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":15500,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":19500,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":4000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":7000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":3000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price","description":"Weighted average grant-date fair value of non-vested options outstanding.","units":{"USD/shares":[{"end":"2015-12-31","val":1.66,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1.05,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2018-12-31","val":0.55,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0.44,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2009-12-31","val":16554409,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2009Q4I"},{"end":"2010-12-31","val":17425439,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":17425439,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":17425439,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2010-12-31","val":17350180,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2010Q4I"},{"end":"2011-06-30","val":17115346,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":16882275,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":15852436,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":15852436,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":15852436,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":15852436,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":15805975,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2011-12-31","val":15805975,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2011Q4I"},{"end":"2012-03-31","val":15430452,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":14417184,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10968209,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2012-12-31","val":9696733,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2012Q4I"},{"end":"2013-03-31","val":9705308,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":6828618,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":6275966,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2013-12-31","val":6346524,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2013Q4I"},{"end":"2014-03-31","val":6614491,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6902985,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7127654,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2014-12-31","val":7245115,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7321689,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7474349,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7212249,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2015-12-31","val":6882677,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2015Q4I"},{"end":"2016-03-31","val":6564812,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6642383,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6578313,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2016-12-31","val":6286931,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6099436,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":5520707,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5392173,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2017-12-31","val":5068488,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2017Q4I"},{"end":"2018-03-31","val":4909095,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2018-03-31","val":4909095,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-03-31","val":4909095,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-03-31","val":4909095,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4971468,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2018-06-30","val":4971468,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-06-30","val":4971468,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":4921901,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2018-09-30","val":4921901,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4088108,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":4088108,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":4088108,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":4088108,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":4088108,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3627197,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2019-03-31","val":3627197,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2019-03-31","val":3627197,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3246475,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2019-06-30","val":3246475,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2795330,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2202049,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"StockIssued1":{"label":"Stock Issued","description":"The fair value of stock issued in noncash financing activities.","units":{"USD":[{"start":"2017-01-01","end":"2017-03-31","val":11250,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":11250,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":11250,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":11250,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":58500,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":58500,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-01-01","end":"2017-12-31","val":88524,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":88524,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":39750,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":39750,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-09-30","val":45426,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":45426,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-01-01","end":"2018-12-31","val":75750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":75750,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-06-30","val":56000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":84000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":110541,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"StockIssuedDuringPeriodSharesNewIssues":{"label":"Stock Issued During Period, Shares, New Issues","description":"Number of new stock issued during the period.","units":{"shares":[{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":4360,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":4360,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4360,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":4360,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":16514,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":22635,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":12154,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":12154,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-03-31","val":5661,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":5661,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10903,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":10903,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":5242,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":5242,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":16647,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":16647,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":5744,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":5744,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2019-01-01","end":"2019-03-31","val":11200,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":22181,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":10891,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":34354,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":12173,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"}]}},"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":"2014-01-01","end":"2014-06-30","val":9600,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":25100,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-03-31","val":1100,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":1100,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":8200,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":8200,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-01-01","end":"2015-09-30","val":8200,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":8200,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":23300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":15000,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-03-31","val":15000,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":15000,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":15000,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-09-30","val":15000,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":15000,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":15000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3"}]}},"StockIssuedDuringPeriodSharesTreasuryStockReissued":{"label":"Stock Issued During Period, Shares, Treasury Stock Reissued","description":"Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.","units":{"shares":[{"start":"2014-01-01","end":"2014-12-31","val":30000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":23300,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":15000,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-01-01","end":"2016-12-31","val":15000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2019-01-01","end":"2019-09-30","val":59625,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"}]}},"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":"2017-01-01","end":"2017-03-31","val":11250,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":18750,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":11250,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":11250,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-01-01","end":"2017-09-30","val":58500,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":58500,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":47250,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":47250,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":39750,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-01-01","end":"2018-06-30","val":39750,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":19875,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":19875,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":59625,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":19875,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":19875,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2019-01-01","end":"2019-03-31","val":28000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":56000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":28000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":84000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":28000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"}]}},"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":"2013-01-01","end":"2013-12-31","val":62460,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":62460,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":100692,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":80103,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":80103,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":51150,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":51150,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":88524,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":88524,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-01-01","end":"2018-03-31","val":19875,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q1"},{"start":"2018-04-01","end":"2018-06-30","val":19875,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":19875,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q2"},{"start":"2018-07-01","end":"2018-09-30","val":19875,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":75750,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":75750,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":28000,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2019-01-01","end":"2019-03-31","val":28000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-03-31","val":28000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q1"},{"start":"2019-04-01","end":"2019-06-30","val":28000,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":28000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q2"},{"start":"2019-07-01","end":"2019-09-30","val":28000,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":110541,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"SubordinatedDebt":{"label":"Subordinated Debt","description":"Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.","units":{"USD":[{"end":"2013-12-19","val":500000,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-19","val":500000,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-19","val":500000,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q4I"},{"end":"2014-12-31","val":445452,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":473135,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":480056,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":486977,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":493898,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":432011,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":434229,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":436471,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":438739,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":350000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"}]}},"SubordinatedDebtCurrent":{"label":"Subordinated Debt, Current","description":"The portion of the carrying value of subordinated debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle, if longer. Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.","units":{"USD":[{"end":"2014-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":473135,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":473135,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":480056,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":486977,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":493898,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":350000,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":350000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2018Q4I"}]}},"SubordinatedLongTermDebt":{"label":"Subordinated Long-term Debt, Noncurrent","description":"Carrying value as of the balance sheet date of collateralized/uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Subordinated debt places a lender in a lien position behind the primary lender of the company.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-12-31","val":417769,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":417769,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":417769,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":417769,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":417769,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":424690,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":431610,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":438531,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":445452,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":445452,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":445452,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":445452,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":445452,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":452373,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":459294,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":466214,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":0,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":432011,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":432011,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":434229,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":436471,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":438739,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-06-30","val":417764,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":467167,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":470152,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":"2017-12-31","val":277000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-12-31","val":306000,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":219000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":306000,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"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":1135977,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":1135977,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":1135977,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1135977,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1135977,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1135977,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":1135977,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":1135977,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":1135977,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":1135977,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1135977,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1135977,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1135977,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1222252,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":1222252,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":1222252,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":1222252,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":1222252,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1222252,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1222252,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1222252,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1204252,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":1204252,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1204252,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1204252,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1204252,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1204252,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1194652,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1169152,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1148152,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":1148152,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":1148152,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":1148152,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":1148152,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1147052,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1139952,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1139952,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1124852,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":1124852,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1124852,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":1124852,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1124852,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1109852,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1109852,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1109852,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1105492,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":1109852,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":1109852,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":1109852,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":1109852,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1105492,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1105492,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1093338,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1087217,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":1087217,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":1087217,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":1087217,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":1087217,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1081556,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1076314,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1070570,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1065483,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":1065483,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":1065483,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":1065483,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":1065483,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1054283,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1043302,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1031129,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1019882,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"TreasuryStockSharesAcquired":{"label":"Treasury Stock, Shares, Acquired","description":"Number of shares that have been repurchased during the period and are being held in treasury.","units":{"shares":[{"start":"2012-01-01","end":"2012-12-31","val":86275,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2012"}]}},"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":3099842,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":3099842,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":3099842,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3099842,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3099842,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3099842,"accn":"0000819689-12-000034","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-26"},{"end":"2011-12-31","val":3099842,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17"},{"end":"2011-12-31","val":3099842,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":3099842,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"end":"2011-12-31","val":3099842,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3099842,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3099842,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3099842,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3335268,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"end":"2012-12-31","val":3335268,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01"},{"end":"2012-12-31","val":3335268,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08"},{"end":"2012-12-31","val":3335268,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19"},{"end":"2012-12-31","val":3335268,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3335268,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3335268,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3335268,"accn":"0000819689-13-000088","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-19","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3272808,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"end":"2013-12-31","val":3272808,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":3272808,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":3272808,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":3272808,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3272808,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3259954,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3190369,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3133883,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"end":"2014-12-31","val":3133883,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":3133883,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"end":"2014-12-31","val":3133883,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"end":"2014-12-31","val":3133883,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3130882,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3110701,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3110701,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3069496,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"end":"2015-12-31","val":3069496,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3069496,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"end":"2015-12-31","val":3069496,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3069496,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3028564,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3028564,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3028564,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3028564,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"end":"2016-12-31","val":3028564,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":3028564,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"end":"2016-12-31","val":3028564,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"end":"2016-12-31","val":3028564,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3016667,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3016667,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2983501,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2966798,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"end":"2017-12-31","val":2966798,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":2966798,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":2966798,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":2966798,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2951350,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2937046,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2921372,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2907490,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"end":"2018-12-31","val":2907490,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"end":"2018-12-31","val":2907490,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"end":"2018-12-31","val":2907490,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"end":"2018-12-31","val":2907490,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2876928,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2846963,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2813745,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2783055,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions","description":"Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":180225,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":59500,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":59500,"accn":"0000819689-13-000022","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-31"},{"start":"2013-01-01","end":"2013-12-31","val":-64867,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"}]}},"ValuationAllowanceAmount":{"label":"Valuation Allowance, Amount (Deprecated 2013-01-31)","description":"The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.","units":{"USD":[{"end":"2012-12-31","val":470900,"accn":"0000819689-13-000070","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-10-08","frame":"CY2012Q4I"}]}},"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":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-2907300,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21"},{"start":"2013-01-01","end":"2013-12-31","val":-2907300,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":136268,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":136268,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-230300,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":-230300,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-340600,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":-340600,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":640800,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":640800,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-202700,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-202700,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-502900,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"WeightedAverageNumberDilutedSharesOutstandingAdjustment":{"label":"Weighted Average Number Diluted Shares Outstanding Adjustment","description":"The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.","units":{"shares":[{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"}]}},"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":"2010-01-01","end":"2010-06-30","val":2731687,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":2739858,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2769049,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":2820834,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":2829518,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":2704239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2704239,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":2704239,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2704239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":2704239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2705373,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2777739,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":2777739,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2798163,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":2798163,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":2815578,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2815578,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2815776,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":2815776,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":2855223,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":2855223,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":2863098,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2863098,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2877599,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":2877599,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2881438,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":2881438,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":2848302,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":2848302,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2782452,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":2782452,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":2786539,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":2786539,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2784757,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":2784757,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":2816144,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2816392,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":2816392,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":2900493,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":2900493,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2816475,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":2816639,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2816516,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":2819915,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":2819915,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":2820999,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":2820999,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2018-01-01","end":"2018-06-30","val":2844889,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":2855101,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"}]}},"WeightedAverageNumberOfShareOutstandingBasicAndDiluted":{"label":"Weighted Average Number of Shares Outstanding, Basic and Diluted","description":"Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).","units":{"shares":[{"start":"2012-01-01","end":"2012-03-31","val":2790514,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":2775428,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2704239,"accn":"0000819689-13-000041","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-07-01","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-12-31","val":2705373,"accn":"0000819689-14-000019","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-21","frame":"CY2013"},{"start":"2016-01-01","end":"2016-03-31","val":2816144,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-09-30","val":2816475,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2016-07-01","end":"2016-09-30","val":2816639,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2816516,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":2818819,"accn":"0000819689-17-000026","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"start":"2017-01-01","end":"2017-03-31","val":2818819,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-09-30","val":2820369,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-01-01","end":"2017-09-30","val":2820369,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":2821263,"accn":"0000819689-17-000053","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":2821263,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2824061,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26"},{"start":"2017-01-01","end":"2017-12-31","val":2824061,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2842105,"accn":"0000819689-18-000034","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":2842105,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2844889,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":2855101,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2847660,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":2847660,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2018-07-01","end":"2018-09-30","val":2853111,"accn":"0000819689-18-000065","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":2853111,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2850397,"accn":"0000819689-19-000025","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":2850397,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2866608,"accn":"0000819689-19-000046","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":2872275,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":2877880,"accn":"0000819689-19-000070","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2878049,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-07-01","end":"2019-09-30","val":2889408,"accn":"0000819689-19-000099","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":2883861,"accn":"0000819689-20-000024","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"}]}},"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":"2010-01-01","end":"2010-06-30","val":2683743,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":2691914,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2719724,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2790514,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":2790514,"accn":"0000819689-11-000038","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2011-07-01","end":"2011-09-30","val":2790514,"accn":"0000819689-11-000045","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":2790514,"accn":"0000819689-12-000050","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-17","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":2790514,"accn":"0000819689-12-000063","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23"},{"start":"2012-07-01","end":"2012-09-30","val":2790514,"accn":"0000819689-12-000073","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-23","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":2704239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2704239,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":2704239,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2704239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":2704239,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2705373,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2722239,"accn":"0000819689-14-000030","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":2722239,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2722914,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":2722914,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2014-04-01","end":"2014-06-30","val":2723582,"accn":"0000819689-14-000055","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2723582,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2731530,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-01-01","end":"2014-09-30","val":2731530,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":2748479,"accn":"0000819689-14-000065","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"start":"2014-07-01","end":"2014-09-30","val":2748479,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":2742080,"accn":"0000819689-15-000024","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-20"},{"start":"2014-01-01","end":"2014-12-31","val":2742080,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2778935,"accn":"0000819689-15-000041","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"start":"2015-01-01","end":"2015-03-31","val":2778935,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2780420,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-01-01","end":"2015-06-30","val":2780420,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2015-04-01","end":"2015-06-30","val":2781826,"accn":"0000819689-15-000069","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"},{"start":"2015-04-01","end":"2015-06-30","val":2781826,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2782452,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-01-01","end":"2015-09-30","val":2782452,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":2786539,"accn":"0000819689-15-000074","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-12"},{"start":"2015-07-01","end":"2015-09-30","val":2786539,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2784757,"accn":"0000819689-16-000096","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-10"},{"start":"2015-01-01","end":"2015-12-31","val":2784757,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":2816144,"accn":"0000819689-16-000112","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2816392,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-01-01","end":"2016-06-30","val":2816392,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":2816639,"accn":"0000819689-16-000126","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-11"},{"start":"2016-04-01","end":"2016-06-30","val":2816639,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2816475,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":2816639,"accn":"0000819689-16-000134","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2816516,"accn":"0000819689-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-22"},{"start":"2016-01-01","end":"2016-12-31","val":2816516,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":2819915,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-01-01","end":"2017-06-30","val":2819915,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2017-04-01","end":"2017-06-30","val":2820999,"accn":"0000819689-17-000040","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-11"},{"start":"2017-04-01","end":"2017-06-30","val":2820999,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-12-31","val":2824061,"accn":"0000819689-18-000019","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-26","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":2844889,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":2847642,"accn":"0000819689-18-000045","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2"}]}}}}}