Other Real Estate Owned - Changes in Purchased and Non-Purchased OREO (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Purchased OREO
Balance at January 1, 2019	$ 6,187
Transfers of loans	509
Impairments	(523)
Dispositions	(241)
Balance at March 31, 2019	5,932
Non Purchased OREO
Balance at January 1, 2019	4,853
Transfers of loans	376
Impairments	(204)
Dispositions	(802)
Balance at March 31, 2019	4,223
Total OREO
Balance at January 1, 2019	11,040
Transfers of loans	885
Impairments	(727)
Dispositions	(1,043)
Balance at March 31, 2019	$ 10,155