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 Classification on Balance Sheet (Detail)

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Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Financial Instruments as well as their Classification on Balance Sheet (Detail)
Sep. 30, 2020
USD ($)
Derivatives Fair Value [Line Items]  
Total derivative assets $ 1,000,000
Total derivative liabilities 1,077,000
Not Designated as Hedging Instrument | Interest Rate Products  
Derivatives Fair Value [Line Items]  
Notional Amount 29,348,000
Total derivative assets 1,000,000
Total derivative liabilities $ 1,077,000