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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 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Also include purchases of participations in pools of securities, regardless of maturity (Securities Purchased Under Agreements to Re-sell).","units":{"USD":[{"end":"2010-12-31","val":18133000,"accn":"0000914317-11-001262","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9358000,"accn":"0000914317-11-001262","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-12","frame":"CY2011Q2I"}]}},"FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1":{"label":"Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged","description":"Amount of the collateral pledged in support of federal home loan bank advances outstanding.","units":{"USD":[{"end":"2011-12-31","val":63641363,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2011Q4I"},{"end":"2012-12-31","val":78848981,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"end":"2012-12-31","val":78848981,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2012Q4I"},{"end":"2013-12-31","val":89847582,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"end":"2013-12-31","val":89847582,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2013Q4I"},{"end":"2014-12-31","val":93836621,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2014Q4I"}]}},"FederalHomeLoanBankAdvancesLongTerm":{"label":"Long-term Federal Home Loan Bank Advances","description":"Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.","units":{"USD":[{"end":"2011-12-31","val":6000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"end":"2012-12-31","val":1000000,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"end":"2013-12-31","val":0,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2014Q4I"}]}},"FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate":{"label":"Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Two","description":"Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due 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":{"pure":[{"end":"2012-12-31","val":0.05,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2012Q4I"}]}},"FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate":{"label":"Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Three","description":"Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due 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":{"pure":[{"end":"2012-12-31","val":0.0533,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.0533,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2013Q4I"}]}},"FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate":{"label":"Federal Home Loan Bank, Advance, Maturity, Year Two","description":"Amount of advance from Federal Home Loan Bank (FHLBank) 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":"2012-12-31","val":5000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2012Q4I"}]}},"FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate":{"label":"Federal Home Loan Bank, Advance, Maturity, Year Three","description":"Amount of advance from Federal Home Loan Bank (FHLBank) 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":"2012-12-31","val":1000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2013Q4I"}]}},"FederalHomeLoanBankAdvancesShortTerm":{"label":"Federal Home Loan Bank, Advances, Short-term (Deprecated 2014-01-31)","description":"Federal Home Loan Bank borrowings due within one year of the latest balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":5000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2011Q4I"},{"end":"2012-12-31","val":5000000,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"end":"2012-12-31","val":5000000,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"end":"2013-12-31","val":1000000,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2014Q4I"}]}},"FederalHomeLoanBankBorrowingsFairValueDisclosure":{"label":"Federal Home Loan Bank Borrowings, Fair Value Disclosure","description":"Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).","units":{"USD":[{"end":"2012-09-30","val":6102000,"accn":"0001104659-12-077802","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-14","frame":"CY2012Q3I"}]}},"FederalHomeLoanBankStock":{"label":"Federal Home Loan Bank Stock","description":"Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).","units":{"USD":[{"end":"2010-12-31","val":2109000,"accn":"0000914317-11-001262","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-12"},{"end":"2010-12-31","val":2109000,"accn":"0000914317-11-001433","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":2108900,"accn":"0000914317-12-000361","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-22","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2168000,"accn":"0000914317-11-001262","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-09-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2155000,"accn":"0000914317-11-001433","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2101700,"accn":"0000914317-12-000361","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-22"},{"end":"2011-12-31","val":2102000,"accn":"0000914317-12-000674","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14"},{"end":"2011-12-31","val":2102000,"accn":"0001104659-12-057641","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"end":"2011-12-31","val":2102000,"accn":"0001104659-12-077802","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-14"},{"end":"2011-12-31","val":2101700,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2234000,"accn":"0000914317-12-000674","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2364000,"accn":"0001104659-12-057641","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2012000,"accn":"0001104659-12-077802","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-14","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1935800,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"end":"2012-12-31","val":1936000,"accn":"0001485001-13-000003","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"end":"2012-12-31","val":1936000,"accn":"0001485001-13-000007","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-14"},{"end":"2012-12-31","val":1936000,"accn":"0001485001-13-000009","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"end":"2012-12-31","val":1935800,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1660000,"accn":"0001485001-13-000003","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1656000,"accn":"0001485001-13-000007","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-14","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1616000,"accn":"0001485001-13-000009","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1588400,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"end":"2013-12-31","val":1588000,"accn":"0001485001-14-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14"},{"end":"2013-12-31","val":1588000,"accn":"0001485001-14-000068","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":1588000,"accn":"0001485001-14-000079","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"},{"end":"2013-12-31","val":1588400,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1593000,"accn":"0001485001-14-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1602000,"accn":"0001485001-14-000068","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1419000,"accn":"0001485001-14-000079","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1390700,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25"},{"end":"2014-12-31","val":1391000,"accn":"0001485001-15-000013","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":1391000,"accn":"0001485001-15-000022","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":1391000,"accn":"0001485001-15-000039","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-13","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1424000,"accn":"0001485001-15-000013","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1440000,"accn":"0001485001-15-000022","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1404000,"accn":"0001485001-15-000039","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-13","frame":"CY2015Q3I"}]}},"FeesAndCommissionsDepositorAccounts":{"label":"Fees and Commissions, Depositor Accounts (Deprecated 2018-01-31)","description":"Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":2635334,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":2586518,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"start":"2011-01-01","end":"2011-12-31","val":2586518,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2589333,"accn":"0001104659-13-022562","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-20"},{"start":"2012-01-01","end":"2012-12-31","val":2589333,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"start":"2012-01-01","end":"2012-12-31","val":2589333,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":2800394,"accn":"0001485001-14-000020","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-18"},{"start":"2013-01-01","end":"2013-12-31","val":2800394,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2831514,"accn":"0001485001-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-25","frame":"CY2014"}]}},"FeesAndCommissionsOther":{"label":"Fees 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