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Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Risk Management [Member]    
Summary of Derivative Instruments [Abstract]    
Notional Amount $ 3,500 $ 3,500
Derivative, Fair Value, Net 0 0
Non-designated hedging instruments | Client-Related | Interest rate swap contracts    
Summary of Derivative Instruments [Abstract]    
Notional Amount 171,792 153,630
Non-designated hedging instruments | Client-Related | Other Assets | Interest rate swap contracts    
Summary of Derivative Instruments [Abstract]    
Asset derivatives (other assets), fair value 2,099 1,155
Non-designated hedging instruments | Client-Related | Other Liabilities | Interest rate swap contracts    
Summary of Derivative Instruments [Abstract]    
Liability derivatives (other liabilities), fair value $ 2,099 $ 1,155