Fair Value Measurements - Reconciliation of Assets with Unobservable Inputs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 21,158,000	$ 17,478,000	$ 21,204,000	$ 16,195,000
Change included in earnings	(1,008,000)	(791,000)	(2,026,000)	(615,000)
Purchases and issuances	3,279,000	4,991,000	5,329,000	10,360,000
Sales and settlements	(2,191,000)	(1,741,000)	(3,269,000)	(6,004,000)
Ending balance	21,238,000	19,937,000	21,238,000	19,937,000
Net change in unrealized gains (losses) relating to items held at end of period	851,000	2,567,000	851,000	2,567,000
Net change in unrealized gains (losses) included in other comprehensive income	0	0	0	0
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	18,303,000	15,422,000	18,635,000	13,724,000
Change included in earnings	(574,000)	(249,000)	(1,369,000)	462,000
Purchases and issuances	519,000	1,128,000	982,000	2,115,000
Sales and settlements	0	0	0	0
Ending balance	18,248,000	16,301,000	18,248,000	16,301,000
Net change in unrealized gains (losses) relating to items held at end of period	0	0	0	0
Commercial servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	2,170,000	1,091,000	2,129,000	1,084,000
Change included in earnings	(56,000)	(22,000)	(105,000)	(48,000)
Purchases and issuances	25,000	0	115,000	33,000
Sales and settlements	0	0	0	0
Ending balance	2,139,000	1,069,000	2,139,000	1,069,000
Net change in unrealized gains (losses) relating to items held at end of period	0	0	0	0
Interest rate lock commitments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	685,000	965,000	440,000	1,387,000
Change included in earnings	(378,000)	(520,000)	(552,000)	(1,029,000)
Purchases and issuances	2,735,000	3,863,000	4,232,000	8,212,000
Sales and settlements	(2,191,000)	(1,741,000)	(3,269,000)	(6,004,000)
Ending balance	851,000	2,567,000	851,000	2,567,000
Net change in unrealized gains (losses) relating to items held at end of period	$ 851,000	$ 2,567,000	$ 851,000	$ 2,567,000