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Fair Value - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Other real estate owned property write-downs $ 0.6 $ 0.5  
Past due period of mortgage loans held for sale, days 90 days    
Interest income for residential loans held for sale $ 3.6 2.3 $ 1.2
Fair Value on Non-recurring Basis      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Other real estate owned, including repossessed property 1.1 1.2  
Impaired Commercial and Commercial Real Estate Loans      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Principal amount of impaired commercial and commercial real estate loans 256.3 213.8  
Valuation allowance 90.9 58.7  
Provision for credit losses $ 22.2 $ 49.0