Transfers of Financial Assets Servicing Assets at Amortized Cost Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Beginning Balance	$ 14,926	$ 18,712	$ 17,484	$ 21,215
Additions	1,301	966	3,269	2,219
Amortization	(1,616)	(1,801)	(4,992)	(5,557)
Mortgage Servicing Rights (MSR) Impairment (Recovery)	(203)	0	(1,353)	0
Ending Balance	$ 14,408	$ 17,877	$ 14,408	$ 17,877