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Derivative Financial Instruments - Summary of Outstanding Notional Balances and Fair Values of Outstanding Derivative Positions (Detail) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
IRLCs [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Outstanding Notional Balance $ 28,584 $ 28,956
Asset Derivative Fair Value 238 427
Liability Derivative Fair Value 0 0
Forward Mortgage-Backed Securities Trades [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Outstanding Notional Balance 38,500 35,000
Asset Derivative Fair Value 84 0
Liability Derivative Fair Value $ 0 $ 288