Disclosures about Fair Value of Assets and Liabilities - Reconciliation of Unobservable Inputs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivative liabilities | Interest rate lock commitments
Reconciliation of significant unobservable inputs, liabilities:
Balance, beginning of period	$ 23	$ 41
Changes in fair value	(19)	730
Balance, end of period	4	771
Servicing rights.
Reconciliation of significant unobservable inputs, assets:
Balance, beginning of period	146,248	110,348
Additions
Originated servicing	2,173	5,792
Subtractions
Paydowns	(1,698)	(2,749)
Changes in fair value due to changes in valuation inputs or assumptions used in the valuation model	(2,856)	7,645
Balance, end of period	143,867	121,036
Derivative assets | Interest rate lock commitments
Reconciliation of significant unobservable inputs, assets:
Balance, beginning of period	28	264
Subtractions
Changes in fair value	190	(152)
Balance, end of period	$ 218	$ 112