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Derivative Financial Instruments - Effect of Derivative Instruments on Consolidated Statement of Earnings (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivatives, Fair Value [Line Items]      
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] Noninterest Income Noninterest Income Noninterest Income
Derivatives Not Designated as Hedging Instruments [Member]      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 0 $ 382 $ 5,025
Derivatives Not Designated as Hedging Instruments [Member] | Interest rate swaps      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 0 $ 382 $ 5,025