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Derivative Financial Instruments - Additional Information (Detail)
$ in Thousands
 6 Months Ended
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
Agreement
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative assets and liabilities offset in balance sheet   $ 0
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.
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   $ 386,500
Cash Flow Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Total notional amount of the Company's swaps   $ 300,000
Average Interest Rate   4.20%
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value   $ 300,000
Fair Value Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Total notional amount of the Company's swaps $ 1,000,000  
Average Interest Rate 3.80%  
Derivative instruments totaled $ 13,700  
Remaining Maturity Year 4 years  
Remaining Maturity 5 years