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Short-Term Borrowings - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Short-term Debt [Line Items]      
Unused lines of credit $ 280,000,000    
Short-Term Borrowings [Member]      
Short-term Debt [Line Items]      
Interest paid 5,786,000 $ 8,063,000 $ 6,390,000
Unrelated Financial Institution [Member]      
Short-term Debt [Line Items]      
Unused lines of credit $ 20,000,000    
Renewal period of line of credit 360 days    
Amount of outstanding balance under line of credit $ 0