v3.26.3
Fair Value Measurement - Estimates Fair Value of Financial Instruments (Parenthetical) (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans held for sale, fair value $ 37,545 $ 87,454
Recurring Fair Value Measurements [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans held for sale, fair value 37,545 $ 87,454
Commercial Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans held for sale amortized cost basis $ 19,200