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Excludes loans and leases covered under loss sharing agreements and loans held for 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al":387000,"accn":"0001171843-15-002798","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":453000,"accn":"0001171843-15-004659","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-13"}]}},"PaymentsToAcquireRestrictedCertificatesOfDeposit":{"label":"Payments 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interest-bearing domestic certificates of deposit liabilities to total deposit 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Withdrawal","description":"Percentage of interest-bearing domestic notice of withdrawal demand deposit liabilities to total deposit liabilities.","units":{"pure":[{"end":"2011-12-31","val":0.1544,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0.1648,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27"},{"end":"2012-12-31","val":0.1648,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.1954,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27"},{"end":"2013-12-31","val":0.1954,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.2317,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"PercentageOfInterestBearingDomesticDepositsToDepositsSavings":{"label":"Percentage of Interest-bearing Domestic Deposits to Deposits, Savings","description":"Percentage of interest-bearing domestic savings deposit liabilities to total deposit liabilities.","units":{"pure":[{"end":"2011-12-31","val":0.1171,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0.1349,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27"},{"end":"2012-12-31","val":0.1349,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.1338,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27"},{"end":"2013-12-31","val":0.1338,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.2509,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"ProceedsFromInsuranceSettlementInvestingActivities":{"label":"Proceeds from Insurance Settlement, Investing Activities","description":"Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":42000,"accn":"0001171843-12-001058","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-28","frame":"CY2009"}]}},"ProceedsFromIssuanceOfDebt":{"label":"Proceeds from Issuance of Debt","description":"The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":788000,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1135000,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27"},{"start":"2013-01-01","end":"2013-12-31","val":1135000,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":326000,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014"}]}},"ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities":{"label":"Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale","description":"Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in 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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":5934000,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":6699000,"accn":"0001171843-13-001136","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-27"},{"end":"2012-12-31","val":6699000,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":6625000,"accn":"0001171843-14-001439","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-27"},{"end":"2013-12-31","val":6625000,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6546000,"accn":"0001171843-15-001712","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"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 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