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Allowance for Credit Losses - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]        
Allowance for credit loss $ 121,522 $ 105,680 $ 85,376 $ 91,847
Provision for credit losses 22,455 17,945 (7,165)  
Threshold for loan analysis 1,000      
Interest lost on nonaccrual loans 2,500 1,400 2,200  
Interest income on nonaccrual loans 1,000 $ 600 $ 500  
Qualitative Reserves        
Loans and Leases Receivable Disclosure [Line Items]        
Provision for credit losses 13,500      
Quantiative Reserves        
Loans and Leases Receivable Disclosure [Line Items]        
Provision for credit losses 2,400      
Net Charge-offs        
Loans and Leases Receivable Disclosure [Line Items]        
Provision for credit losses $ 6,600      
Minimum        
Loans and Leases Receivable Disclosure [Line Items]        
Valuation frequency period 3 months      
Maximum        
Loans and Leases Receivable Disclosure [Line Items]        
Valuation frequency period 12 months