Servicing Rights - Key Assumptions and the Sensitivity of the Fair Value (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Servicing Assets at Fair Value [Line Items]
Balance of mortgage loans serviced for others	$ 1,629,528,000	$ 1,460,720,000
Weighted average rate of note	4.77%	4.46%
MSR as a percentage of serviced loans	1.69%	1.81%
Mortgage servicing rights
Servicing Assets at Fair Value [Line Items]
Mortgage servicing rights, at fair value	$ 27,474,000	$ 26,439,000	$ 19,564,000	$ 18,635,000
Expected weighted-average life (in years)	8 years 9 months 25 days	9 years 6 months 3 days
Key assumptions:
Constant prepayment rate (percent)	10.01%	9.09%
Constant prepayment rate, impact on fair value from 10% adverse change	$ (1,022,000)	$ (935,000)
Constant prepayment rate, impact on fair value from 25% adverse change	$ (2,427,000)	$ (2,222,000)
Discount rate (percent)	10.97%	10.99%
Discount rate, impact on fair value from 100 basis point increase	$ (871,000)	$ (1,592,000)
Discount rate, impact on fair value from 200 basis point increase	(1,864,000)	(2,544,000)
Cost to service assumptions ($ per loan)	81	81
Cost to service assumptions, impact on fair value from 10% adverse change	(239,000)	(235,000)
Cost to service assumptions, impact on fair value from 25% adverse change	$ (597,000)	$ (588,000)