v3.26.1
Fair Value Measurement - Summary of Quantitative Information about (Level 3) Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1,706,716 $ 1,743,958
Collateral dependent loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 13,263 7,545
Foreclosed assets (Land)    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 355  
Foreclosed assets | SFR-1st Deed    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 623 634
Foreclosed assets | Farmland    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 2,928