Annual report pursuant to Section 13 and 15(d)

FHLB Advances and Other Borrowings - FHLB Advances and Other Borrowings (Detail)

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FHLB Advances and Other Borrowings - FHLB Advances and Other Borrowings (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Federal Home Loan Banks [Abstract]    
FHLB advances $ 150,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate $ 127,546us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
Total FHLB advances $ 150,000us-gaap_AdvancesFromFederalHomeLoanBanks $ 127,546us-gaap_AdvancesFromFederalHomeLoanBanks