Annual report pursuant to Section 13 and 15(d)

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

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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 ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Derivative Instruments Gain Loss [Line Items]      
Amount of Gain or (Loss) Recognized in Income on Derivative $ (114) $ 113 $ 80
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other operating income Other operating income Other operating income
Interest Rate Products      
Derivative Instruments Gain Loss [Line Items]      
Amount of Gain or (Loss) Recognized in Income on Derivative $ (114) $ 113 $ 80