Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Activity for other real estate owned [Roll Forward]
Beginning balance of other real estate owned	$ 31,996	$ 35,856
New assets acquired	5,459	5,382
Fair value adjustments	(2,530)	(3,034)	$ (1,214)
Sale of assets	(7,652)	(6,208)
Ending balance of other real estate owned	27,273	31,996	35,856
Carrying cost and fair value adjustments for foreclosed properties	$ 4,300	$ 4,500	$ 2,900