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Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Loss Contingencies [Line Items]    
Unused commitments to extend credit $ 4,678.0 $ 4,575.0
Standby Letters of Credit [Member]    
Loss Contingencies [Line Items]    
Potential exposure to credit loss in the event of nonperformance $ 148.7 $ 110.4
Letters of credit, maturity term - maximum 3 years