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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, 2023
Dec. 31, 2022
Dec. 31, 2021
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 4,868 $ 0 $ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] Noninterest Income Noninterest Income Noninterest Income
Interest rate swaps      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 4,868 $ 0 $ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Derivatives Not Designated as Hedging Instruments [Member]      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 12 $ 0 $ 382
Derivatives Not Designated as Hedging Instruments [Member] | Interest rate swaps      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments 12 0 382
Derivatives designated as hedging instruments      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments 8,210 0 0
Derivatives designated as hedging instruments | Interest rate swaps      
Derivatives, Fair Value [Line Items]      
Amount of Gain Recognized in Income on Derivative Instruments $ 8,210 $ 0 $ 0