Transfers of Financial Assets Servicing Assets at Amortized Cost Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Beginning balance	$ 9,237	$ 13,422	$ 17,484
Additions	289	2,053	4,373
Amortization	(870)	(5,593)	(6,562)
Adjustment to valuation allowance	0	(645)	(1,873)
Ending balance	9,515	9,237	13,422
Sterling
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Additions	$ 859	$ 0	$ 0