Quarterly report pursuant to Section 13 or 15(d)

Derivatives and Hedging Activities - Effect of Derivative Financial Instruments that are Not Designated as Hedging Instruments on Income Statement (Detail)

v3.20.2
Derivatives and Hedging Activities - Effect of Derivative Financial Instruments that are Not Designated as Hedging Instruments on Income Statement (Detail) - Not Designated as Hedging Instrument - USD ($)
 3 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain or (Loss) Recognized in Income on Derivative $ (98,000) $ 0
Interest Rate Products | Other Income    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain or (Loss) Recognized in Income on Derivative $ (98,000)