Loans and the Allowance for Credit Losses - Summary of Nonperforming Loans (Parenthetical) (Details) $ in Millions |
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2026
USD ($)
Borrower
|
Dec. 31, 2025
USD ($)
Borrower
|
|
| Receivables [Abstract] | ||
| Number of borrowers with loan balance greater than one million | Borrower | 19 | 11 |
| Borrowers with large amount of loans outstanding, minimum amount of loans per borrower | $ 1.0 | $ 1.0 |
| Borrowers with large amount of loans outstanding, net | 88.6 | $ 35.5 |
| Amortized cost of loan on nonaccrual | $ 19.2 |