v3.26.1
Loans and Allowance for Credit Losses - General Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Past Due [Line Items]              
Accrued interest receivable, loans $ 7.1       $ 7.1   $ 7.0
Additional interest income 0.9     $ 0.9 0.9 $ 0.9  
Reversal of interest receivable on financing receivable on nonaccrual status $ 0.2   $ 0.1   0.2 $ 0.3  
Amortized cost of collateral-dependent loans, increase (decrease) during the period         $ 3.3    
Charge off collateral-dependent loans   $ 4.2          
Weighted average loan-to-value ratio of collateral dependent loans (as a percent) 40.00%       40.00%    
Collateral dependent loans in process of foreclosure   $ 0.0         $ 0.0
Purchased credit deteriorated loans $ 0.0       $ 0.0    
Maximum              
Financing Receivable, Past Due [Line Items]              
Asset size 10,000.0       10,000.0    
Minimum              
Financing Receivable, Past Due [Line Items]              
Asset size $ 1,500.0       $ 1,500.0