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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
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