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Intangible Assets (Detail Textuals) - Mortgage servicing rights (MSRs) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]      
Mortgage loans serviced for others $ 308,100,000 $ 312,300,000 $ 312,100,000
Mortgage loan servicing fees reported as other non-interest income $ 210,000 $ 214,000