Annual report pursuant to Section 13 and 15(d)

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

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Derivative Financial Instruments - Effect of Derivative Financial Instruments that are Not Designated as Hedging Instruments on Income Statement (Detail) - Not Designated as Hedging Instrument - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain or (Loss) Recognized in Income on Derivative $ 80 $ (61)
Interest Rate Products | Other Income    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain or (Loss) Recognized in Income on Derivative $ 80 $ (61)