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Derivative Financial Instruments - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
Agreement
Jun. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative assets and liabilities offset in balance sheet $ 0    
Total notional amount of the Company's swaps $ 394,400   $ 425,600
Description of Conditions Relating to Clearing of Interest rate Swaps These instruments contain language outlining collateral pledging requirements for each counterparty, in which collateral must be posted if market value exceeds certain agreed upon threshold limits. Cash or securities are pledged as collateral.    
Fair Value Hedging [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Total notional amount of the Company's swaps   $ 1,000,000  
Weighted average fixed rate   3.80%  
Total fair value of instruments $ 6,900    
Interest-rate Swap Agreements with Customers [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Number of interest-rate swap agreements | Agreement 114    
Total notional amount of the Company's swaps $ 394,400