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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":352401000,"accn":"0001193125-11-214269","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-08"},{"end":"2010-12-31","val":352401000,"accn":"0001193125-11-302160","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-08"},{"end":"2010-12-31","val":352401000,"accn":"0001193125-12-111997","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-13","frame":"CY2010Q4I"},{"end":"2011-06-30","val":356722000,"accn":"0001193125-11-214269","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-08","frame":"CY2011Q2I"},{"end":"2011-09-30","val":358112000,"accn":"0001193125-11-302160","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-08","frame":"CY2011Q3I"},{"end":"2011-12-31","val":446357000,"accn":"0001193125-12-111997","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-13"},{"end":"2011-12-31","val":446357000,"accn":"0001193125-12-223538","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":446357000,"accn":"0001193125-12-345613","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"end":"2011-12-31","val":446357000,"accn":"0001193125-12-461121","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":446357000,"accn":"0001193125-13-107746","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-14","frame":"CY2011Q4I"},{"end":"2012-03-31","val":448004000,"accn":"0001193125-12-223538","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":450362000,"accn":"0001193125-12-345613","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":453624000,"accn":"0001193125-12-461121","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":512174000,"accn":"0001193125-13-107746","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-14"},{"end":"2012-12-31","val":512174000,"accn":"0001193125-13-210565","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-09"},{"end":"2012-12-31","val":512174000,"accn":"0001193125-13-322359","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":512174000,"accn":"0001193125-13-437886","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"end":"2012-12-31","val":512174000,"accn":"0001193125-14-097515","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-13","frame":"CY2012Q4I"},{"end":"2013-03-31","val":514678000,"accn":"0001193125-13-210565","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":518024000,"accn":"0001193125-13-322359","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":521614000,"accn":"0001193125-13-437886","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":556235000,"accn":"0001193125-14-097515","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-13"},{"end":"2013-12-31","val":556235000,"accn":"0001193125-14-192448","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":556235000,"accn":"0001193125-14-303327","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":556235000,"accn":"0001193125-14-405498","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10"},{"end":"2013-12-31","val":556235000,"accn":"0001193125-15-069192","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":560105000,"accn":"0001193125-14-192448","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":564292000,"accn":"0001193125-14-303327","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":569357000,"accn":"0001193125-14-405498","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":574247000,"accn":"0001193125-15-069192","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":574247000,"accn":"0001193125-15-178937","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":574247000,"accn":"0001193125-15-283253","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07","frame":"CY2014Q4I"},{"end":"2015-03-31","val":581341000,"accn":"0001193125-15-178937","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":587377000,"accn":"0001193125-15-283253","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07","frame":"CY2015Q2I"}]}},"AdditionalPaidInCapitalCommonStock":{"label":"Additional Paid in Capital, Common Stock","description":"Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in 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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 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OfIntangibleAssetsFinitelived":{"label":"Impairment 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