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This item does not include penalties assessed on the early withdrawal of time 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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":"0001017793-11-000012","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0,"accn":"0001017793-11-000012","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"}]}},"ProceedsFromDividendsReceived":{"label":"Proceeds from Dividends Received","description":"Dividends received on equity and other investments during the current period.","units":{"USD":[{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001193125-14-401298","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-06"},{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001193125-15-091521","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001193125-15-179469","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001564590-15-006645","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001564590-15-010177","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-09-01","end":"2014-09-30","val":590000,"accn":"0001564590-16-014691","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14","frame":"CY2014Q3I"},{"start":"2014-12-01","end":"2014-12-31","val":25000,"accn":"0001193125-15-179469","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-12-01","end":"2014-12-31","val":25000,"accn":"0001564590-15-006645","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2014-12-01","end":"2014-12-31","val":25000,"accn":"0001564590-15-010177","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-12-01","end":"2014-12-31","val":25000,"accn":"0001564590-16-014691","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14","frame":"CY2014Q4I"},{"start":"2015-03-01","end":"2015-03-31","val":25000,"accn":"0001564590-15-006645","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2015-03-01","end":"2015-03-31","val":25000,"accn":"0001564590-15-010177","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-03-01","end":"2015-03-31","val":25000,"accn":"0001564590-16-014691","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14","frame":"CY2015Q1I"},{"start":"2015-03-07","end":"2015-03-31","val":25000,"accn":"0001193125-15-179469","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"}]}},"ProceedsFromFederalHomeLoanBankAdvances":{"label":"Proceeds from FHLBank Advance, Investing Activities","description":"Amount of cash inflow from collection of advance by Federal Home Loan Bank (FHLBank), classified as investing activity.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":60000000,"accn":"0001193125-13-111048","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-18"},{"start":"2012-01-01","end":"2012-12-31","val":60000000,"accn":"0001193125-14-098208","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-14"},{"start":"2012-01-01","end":"2012-12-31","val":60000000,"accn":"0001193125-15-091521","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2012"},{"start":"2014-01-01","end":"2014-06-30","val":-83000,"accn":"0001564590-15-006645","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2015-01-01","end":"2015-06-30","val":24911000,"accn":"0001564590-15-006645","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2015-01-01","end":"2015-06-30","val":24911000,"accn":"0001564590-16-023333","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"start":"2015-01-01","end":"2015-09-30","val":24866000,"accn":"0001564590-16-028289","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-08"},{"start":"2015-01-01","end":"2015-12-31","val":24820000,"accn":"0001564590-16-014691","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":-94000,"accn":"0001564590-16-023333","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"start":"2016-01-01","end":"2016-09-30","val":-142000,"accn":"0001564590-16-028289","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-08"}]}},"ProceedsFromIncomeTaxRefunds":{"label":"Proceeds 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from Issuance of Preferred Stock and Preference Stock","description":"Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":88009000,"accn":"0001193125-13-111048","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-18","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":88009000,"accn":"0001193125-12-114956","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14"}]}},"ProceedsFromIssuanceOfPrivatePlacement":{"label":"Proceeds from Issuance of Private Placement","description":"The cash inflow associated with the amount received from entity's raising of capital via private rather than public 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for proceeds from settlement of corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance 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