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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, 2022
Dec. 31, 2021
IRLCs [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Outstanding Notional Balance $ 41,664 $ 85,973
Asset Derivative Fair Value 400 1,279
Liability Derivative Fair Value 0 0
Forward Mortgage-Backed Securities Trades [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Outstanding Notional Balance 45,000 116,000
Asset Derivative Fair Value 85 0
Liability Derivative Fair Value $ 0 $ 147