v3.26.1
Fair Value Disclosures (Additional) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Allowance for credit losses $ 45,252 $ 43,950 $ 40,906 [1] $ 39,776 $ 38,175 $ 37,423
Collateral Pledged            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Allowance for credit losses $ 3,500   $ 4,900      
[1] Derived from audited financial statements.