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Derivatives and Hedging Activities - Summary of Fair Values of Derivative Instruments on Balance Sheets (Detail) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
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Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | $ 75,893,000 | $ 24,876,000
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Other Assets | Other Assets
Liability Derivatives | $ 74,726,000 | $ 26,409,000
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Other Liabilities | Other Liabilities
Interest Rate Swaps and Caps [Member] | Loan Swaps [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional or Contractual Amount | $ 936,834,000 | $ 730,552,000
Asset Derivatives | 75,840,000 | 24,867,000
Liability Derivatives | 74,683,000 | 26,388,000
Interest Rate Lock Commitments [Member] | Other Contract [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional or Contractual Amount | 10,071,000 | 28,994,000
Asset Derivatives |  | 9,000
Liability Derivatives | 43,000 |
Forward TBA Contracts [Member] | Other Contract [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Notional or Contractual Amount | 14,500,000 | 48,500,000
Asset Derivatives | $ 53,000 |
Liability Derivatives |  | $ 21,000

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