Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Activity for other real estate owned [Roll Forward]
Beginning balance of other real estate owned	$ 40,674	$ 36,776
New assets acquired	5,900	18,850
Capitalized costs	0	85
Fair value adjustments	(1,214)	(1,656)	$ (1,730)
Sale of assets	(9,504)	(13,381)
Ending balance of other real estate owned	35,856	40,674	36,776
Carrying cost and fair value adjustments for foreclosed properties	$ 2,900	$ 3,500	$ 3,900