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Fair Value Measurement - Quantitative Information about (Level 3) Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Collateral dependent loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 6,362 $ 8,770
Real estate owned (Residential real estate)    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 267 $ 709