Quarterly report pursuant to Section 13 or 15(d)

Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Financial Instruments as well as their Location on Balance Sheet (Detail)

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Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Financial Instruments as well as their Location on Balance Sheet (Detail) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Derivatives Fair Value [Line Items]    
Total derivative assets $ 8,602,000 $ 7,507,000
Total derivative liabilities 8,493,000 7,375,000
Not Designated as Hedging Instrument | Interest Rate Products    
Derivatives Fair Value [Line Items]    
Notional Amount 105,209,000 61,460,000
Total derivative assets 8,602,000 7,507,000
Total derivative liabilities $ 8,493,000 $ 7,375,000