Fair Value Measurements - Reconciliation of Assets with Unobservable Inputs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 31,202,000	$ 24,252,000	$ 29,098,000	$ 22,106,000
Change included in earnings	(1,906,000)	(1,625,000)	(4,551,000)	(2,604,000)
Purchases and issuances	6,458,000	6,664,000	16,293,000	14,273,000
Sales and settlements	(4,053,000)	(4,258,000)	(9,139,000)	(8,742,000)
Ending balance	31,701,000	25,033,000	31,701,000	25,033,000
Net change in unrealized gains (losses) relating to items held at end of period	1,531,000	1,327,000	1,531,000	1,327,000
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	27,506,000	21,077,000	26,439,000	19,564,000
Change included in earnings	(1,250,000)	(968,000)	(2,923,000)	(1,074,000)
Purchases and issuances	1,540,000	1,461,000	4,280,000	3,080,000
Sales and settlements	0	0	0	0
Ending balance	27,796,000	21,570,000	27,796,000	21,570,000
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	2,400,000	2,116,000	2,194,000	2,200,000
Change included in earnings	(64,000)	(10,000)	(257,000)	(155,000)
Purchases and issuances	38,000	30,000	437,000	91,000
Sales and settlements	0	0	0	0
Ending balance	2,374,000	2,136,000	2,374,000	2,136,000
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	1,296,000	1,059,000	465,000	342,000
Change included in earnings	(592,000)	(647,000)	(1,371,000)	(1,375,000)
Purchases and issuances	4,880,000	5,173,000	11,576,000	11,102,000
Sales and settlements	(4,053,000)	(4,258,000)	(9,139,000)	(8,742,000)
Ending balance	1,531,000	1,327,000	1,531,000	1,327,000
Net change in unrealized gains (losses) relating to items held at end of period	$ 1,531,000	$ 1,327,000	$ 1,531,000	$ 1,327,000