Regulatory Matters - Additional Information (Detail) |
3 Months Ended |
|---|---|
Mar. 31, 2026 | |
| Regulated Operations [Abstract] | |
| CET1 capital ratio to be well capitalized under rules and prompt corrective provisions | 6.50% |
| Total Tier 1 capital ratio to be well capitalized under rules and prompt corrective provisions | 0.08 |
| Total capital ratio to be well capitalized under rules and prompt corrective provisions | 0.10 |
| Leverage ratio to be well capitalized under rules and prompt corrective provisions | 0.05 |
| Capital conservation buffer desired rate | 2.50% |