Derivative Instruments - (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Designated as hedging instruments:
Derivative financial instruments
Derivative liabilities	$ 7,032	$ 4,266
Not designated as hedging instruments:
Derivative financial instruments
Derivative assets	10,973	7,498
Derivative liabilities	10,086	3,053
Other Assets | Not designated as hedging instruments: | Interest rate contracts
Derivative financial instruments
Derivative assets	5,403	2,544
Other Assets | Not designated as hedging instruments: | Interest rate lock commitments
Derivative financial instruments
Derivative assets	5,570	4,508
Other Assets | Not designated as hedging instruments: | Forward commitments
Derivative financial instruments
Derivative assets	0	446
Other Liabilities | Designated as hedging instruments: | Interest rate swaps
Derivative financial instruments
Derivative liabilities	7,032	4,266
Other Liabilities | Not designated as hedging instruments: | Interest rate contracts
Derivative financial instruments
Derivative liabilities	5,403	2,544
Other Liabilities | Not designated as hedging instruments: | Interest rate lock commitments
Derivative financial instruments
Derivative liabilities	1	0
Other Liabilities | Not designated as hedging instruments: | Forward commitments
Derivative financial instruments
Derivative liabilities	$ 4,682	$ 509