Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Real Estate Owned Rollforward
Balance at beginning of the period	$ 83,146	$ 122,072
Write-downs in value	(1,277)	(1,409)
Additions	5,723	17,527
Sales	(15,532)	(14,373)
Other adjustments		105
Ending balance	72,060	123,922
Mortgages
Other Real Estate Owned Rollforward
Balance at beginning of the period	69,932	105,113
Write-downs in value	(970)	(900)
Additions	1,873	15,407
Sales	(13,860)	(13,340)
Other adjustments		105
Ending balance	56,975	106,385
Commercial / Construction
Other Real Estate Owned Rollforward
Balance at beginning of the period	13,214	16,959
Write-downs in value	(307)	(509)
Additions	3,850	2,120
Sales	(1,672)	(1,033)
Other adjustments		0
Ending balance	$ 15,085	$ 17,537