Derivative Financial Instruments - Additional Information (Detail) - Interest Rate Swaps [Member] |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Not Designated as Hedging Instrument [Member] | ||
| Derivative [Line Items] | ||
| Weighted average maturity period | 6 years 2 months 1 day | 5 years 7 months 6 days |
| Weighted average pay rate | 6.79% | 6.72% |
| Weighted average receive rate | 6.82% | 6.85% |
| Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | ||
| Derivative [Line Items] | ||
| Weighted average maturity period | 6 years 3 months 7 days | 5 years 10 months 24 days |
| Weighted average pay rate | 4.45% | 4.60% |
| Weighted average receive rate | 7.10% | 7.70% |