Repurchase Agreements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Disclosure of Repurchase Agreements [Abstract]
Repurchase agreements, maturity period	1 day
Financial Instruments Owned and Pledged as Collateral [Line Items]
Repurchase agreement obligations	$ 21,255	$ 22,104
Residential
Financial Instruments Owned and Pledged as Collateral [Line Items]
Repurchase agreement obligations	12,399	5,191
Commercial
Financial Instruments Owned and Pledged as Collateral [Line Items]
Repurchase agreement obligations	8,102	13,969
U.S. Treasury and U.S. Government-sponsored agencies
Financial Instruments Owned and Pledged as Collateral [Line Items]
Repurchase agreement obligations	$ 754	$ 2,944