v3.25.2
Allowance for Credit Losses - Narrative (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2025
USD ($)
sub-segment
Dec. 31, 2024
USD ($)
Provision (credit) for loan and lease losses:    
Unfunded credit commitments liability included in other liabilities $ 4.6 $ 6.0
Allowance for credit loss, completion of revision, period from forecast start date 5 years  
Number of sub-segments qualitative adjustments were applied | sub-segment 5  
Impact of qualitative adjustments to the CRE lifetime loss rate, C&I lifetime loss rate, and retail lifetime loss rate models $ 27.0  
General allowance for loan and lease losses 105.0 107.5
Specific allowance for loan and lease losses 21.7 $ 17.5
Specific allowance for loan and lease losses period increase (decrease) 4.2  
Equipment financing    
Provision (credit) for loan and lease losses:    
Increase (decrease) in specific reserves for loan and lease losses 3.7  
Consumer and Industrial Loans    
Provision (credit) for loan and lease losses:    
Increase (decrease) in specific reserves for loan and lease losses 0.3  
Commercial Real Estate    
Provision (credit) for loan and lease losses:    
Increase (decrease) in specific reserves for loan and lease losses $ 0.2  
Minimum    
Provision (credit) for loan and lease losses:    
Allowance for credit loss, start of revision, period from forecast start date 2 years  
Maximum    
Provision (credit) for loan and lease losses:    
Allowance for credit loss, start of revision, period from forecast start date 3 years