Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale and Other Securities (Details Textuals)

v2.4.1.9
Available-for-Sale and Other Securities (Details Textuals) (USD $)
Mar. 31, 2015
Investment Securities (Textuals)  
Stock issued by Federal Reserve Banks included in other securities $ 174,700,000us-gaap_FederalReserveBankStock
Pledged investment securities to secure public and trust deposits, trading account liabilities, US Treasury demand notes and security repurchase agreements 3,700,000,000us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForOtherDebtFacilities
Federal Home Loan Bank of Cincinnati [Member]  
Investment Securities (Textuals)  
Stock issued by the Federal Home Loan Bank included in other securities 157,000,000us-gaap_FederalHomeLoanBankStock
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalHomeLoanBankOfCincinnatiMember
Federal Home Loan Bank of Indianapolis [Member]  
Investment Securities (Textuals)  
Stock issued by the Federal Home Loan Bank included in other securities $ 0us-gaap_FederalHomeLoanBankStock
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalHomeLoanBankOfIndianapolisMember