Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Change in fair value of mortgage servicing rights
Balance, beginning of year	$ 17,491
Balance, end of year	20,045		$ 17,491
MSR asset
Change in fair value of mortgage servicing rights
Balance, beginning of year	17,491	$ 5,723	5,723
Additions	2,546	1,766
Changes in fair value: Due to changes in model inputs or assumptions	429	(517)
Changes in fair value: Due to customer payoffs	(421)	(69)
Balance, end of year	20,045	$ 6,903	17,491
Mortgage loans serviced for others	$ 1,245,169		$ 1,145,063
MSR asset as a percentage of serviced mortgage loans	1.61%		1.53%
Key Assumptions
Weighted average constant prepayment rate (as a percent)	13.59%		14.68%
Weighted average discount rate (as a percent)	11.49%		11.45%
Weighted average life (in years)	6 years 2 months 12 days		5 years 9 months 18 days