v3.25.2
Loans, Leases and Allowance for Credit Losses - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]          
Unamortized loan fees $ 117.0   $ 117.0   $ 106.0
Financing receivable, unamortized premium 178.0   178.0   175.0
Loans Past Due 90 Days or More and Still Accruing 377.0   377.0   326.0
Interest income associated with loans on nonaccrual status 8.0 $ 6.9 16.0 $ 11.8  
Modified loans current with contractual payments 103.0   103.0   169.0
Modified loans on nonaccrual status 135.0   135.0   128.0
Amortized cost basis 1.0 70.0 238.0 177.0  
Interest receivable 274.0   274.0   272.0
Loan purchases 755.0 126.0 1,100.0 515.0  
Loan sales 161.0 151.0 379.0 388.0  
Charge-offs 35.3 22.9 62.8 33.1  
Charge-off   1.6   3.0  
Gain (loss) on sale of loan (0.2) (0.7) (2.8) (5.8)  
Loans sold during period          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Charge-offs 1.7   1.7    
Residential EBO          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Loans Past Due 90 Days or More and Still Accruing 326.0   326.0   326.0
Amortized cost basis 142.0 103.0 287.0 190.0  
Interest receivable, allowance 1.4   1.4   1.5
Loan purchases 175.0 104.0 302.0 182.0  
Charge-offs 0.0 0.0 0.0 0.0  
Residential EBO | Financial Asset, Current to 89 Days Past Due          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Modified loans 35.0   35.0   29.0
Residential EBO | Over 90 days Past Due          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Modified loans 19.0   19.0   11.0
Residential          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Loans Past Due 90 Days or More and Still Accruing 51.0   51.0   0.0
Recorded investment for which formal foreclosure proceedings are in process 104.0   104.0   $ 99.0
Charge-offs $ 0.0 $ 0.0 $ 0.0 $ 0.0