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Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2010-12-31","val":999353000,"accn":"0001193125-12-104763","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-09","frame":"CY2010Q4I"},{"end":"2010-12-31","val":999353000,"accn":"0001193125-11-294939","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-03"},{"end":"2010-12-31","val":999353000,"accn":"0000950123-11-074593","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2011-06-30","val":0,"accn":"0000950123-11-074593","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001193125-11-294939","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-03","frame":"CY2011Q3I"}]}},"TemporaryEquityDividendsAdjustment":{"label":"Temporary Equity, Dividends, Adjustment","description":"Accretion of temporary equity during the period due to cash, stock, and in-kind dividends. This item is an adjustment to net income necessary to derive net income apportioned to common stockholders and is to be distinguished from Temporary Equity, Accretion of Dividends (Temporary Equity, Accretion of Dividends).","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":20477000,"accn":"0001193125-12-371872","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-28"},{"start":"2011-04-01","end":"2011-06-30","val":20477000,"accn":"0001193125-12-371872","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-28","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":20477000,"accn":"0001193125-12-467611","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2012-11-13"},{"start":"2011-01-01","end":"2011-12-31","val":20500000,"accn":"0001193125-13-089758","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-04"},{"start":"2011-01-01","end":"2011-12-31","val":20500000,"accn":"0001273931-14-000004","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03"},{"start":"2011-01-01","end":"2011-12-31","val":20500000,"accn":"0001273931-14-000015","fy":2013,"fp":"FY","form":"10-K/A","filed":"2014-11-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001273931-14-000004","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001273931-14-000015","fy":2013,"fp":"FY","form":"10-K/A","filed":"2014-11-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001273931-14-000004","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001273931-14-000015","fy":2013,"fp":"FY","form":"10-K/A","filed":"2014-11-13","frame":"CY2013"}]}},"TimeDepositsAtCarryingValue":{"label":"Time Deposits, at Carrying Value","description":"Any certificate of deposit or savings account held by a bank or other financial institution for a short-term specified period of time. 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