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Derivative Financial Instruments - Notional Amount and Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Forward contracts    
Asset Derivatives    
Notional Amount $ 0 $ 42,743
Fair Value 0 30
Liability Derivatives    
Notional Amount 115,695 0
IRLCs    
Asset Derivatives    
Notional Amount 79,376 28,444
Fair Value 2,032 582
Forward contracts | Forward contracts    
Liability Derivatives    
Derivative financial instrument $ (465) $ 0