Commitments and Credit Risk - Additional Information (Detail) |
3 Months Ended |
|---|---|
Mar. 31, 2026 | |
| Minimum [Member] | |
| Commitments And Contingencies [Line Items] | |
| Fixed interest rate loan commitments | 3.45% |
| Fixed interest rate loan commitments maturity period | 1 month |
| Maximum [Member] | |
| Commitments And Contingencies [Line Items] | |
| Fixed interest rate loan commitments | 9.19% |
| Fixed interest rate loan commitments maturity period | 59 months |