Revenue from Contracts with Customers - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue From Contract With Customer [Abstract]
Other real estate sales, net gains	$ 123	$ 588	$ 246	$ 1,002