Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Real Estate Owned Rollforward
Balance at beginning of the period	$ 122,072	$ 136,705
Write-downs in value	(1,409)	(2,181)
Additions	17,527	8,934
Sales	(14,373)	(17,847)
Other adjustments	105	(133)
Ending balance	123,922	125,478
Mortgages
Other Real Estate Owned Rollforward
Balance at beginning of the period	105,113	114,911
Write-downs in value	(900)	(1,610)
Additions	15,407	7,764
Sales	(13,340)	(16,333)
Other adjustments	105	(133)
Ending balance	106,385	104,599
Commercial / Construction
Other Real Estate Owned Rollforward
Balance at beginning of the period	16,959	21,794
Write-downs in value	(509)	(571)
Additions	2,120	1,170
Sales	(1,033)	(1,514)
Other adjustments	0	0
Ending balance	$ 17,537	$ 20,879