Mortgage Servicing Rights - Narrative (Details) - Mortgage loans - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Mortgage servicing rights, fair value	$ 32.3	$ 35.4
Servicing asset at fair value, assumptions used to estimate fair value, weighted average life	7 years 8 months 12 days	7 years 7 months 6 days
Impairment reversals	$ 0.0
Permanent impairment charged against carrying value	$ 0.0
Minimum
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Servicing assets at fair value, assumptions used to estimate fair value, discount rate	10.40%	11.10%
Servicing assets at fair value, assumptions used to estimate fair value, prepayment speed	0.40%	0.20%
Maximum [Member]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Servicing assets at fair value, assumptions used to estimate fair value, discount rate	11.60%	12.40%
Servicing assets at fair value, assumptions used to estimate fair value, prepayment speed	2.30%	2.20%