Derivatives and Hedging Activities - Summary of Effect of Derivative Instruments on Income Statement (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Derivatives, Fair Value [Line Items] | ||||
| Total gain (loss) on derivative financial instruments | $ 2,887 | $ (1,346) | $ 3,609 | $ (2,500) |
| Interest Rate Swaps and Caps [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Total gain (loss) on derivative financial instruments | $ 2,051 | $ 22 | $ 2,251 | $ (1,665) |
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Net Swap Fee and Valuation Income | Net Swap Fee and Valuation Income | Net Swap Fee and Valuation Income | Net Swap Fee and Valuation Income |
| Interest Rate Lock Commitments [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Total gain (loss) on derivative financial instruments | $ (622) | $ (532) | $ (455) | $ 1,037 |
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities |
| Forward TBA Contracts [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Total gain (loss) on derivative financial instruments | $ 1,458 | $ (836) | $ 1,813 | $ (1,872) |
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities | Non Interest Income Derived From Mortgage Banking Activities |