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Derivative Financial Instruments - Additional Information (Detail)
$ in Thousands
 3 Months Ended
Jun. 30, 2023
USD ($)
Mar. 31, 2025
USD ($)
Agreement
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
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   109    
Total notional amount of the Company's swaps   $ 359,300    
Fair Value Hedges [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Total notional amount of the Company's swaps $ 1,000,000   $ 300,000  
Weighted average fixed rate 3.80%      
Derivative Notional Amount   1,100    
Derivative, Average Remaining Maturity 4 years      
Derivative, Remaining Maturity 5 years      
Derivative Fixed Interest Rate     3.95%  
Fair Value Hedges [Member] | Interest Rate Swaps [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Total notional amount of the Company's swaps   $ 700,000    
Cash Flow Hedges [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Weighted average fixed rate       4.20%
Cash flow hedging transactions       $ 300,000
Cash Flow Hedges [Member] | Interest Rate Swaps [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Total notional amount of the Company's swaps       $ 300,000