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Fair Value Measurement - Quantitative Information about Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Losses from fair value adjustments assets and liabilities | $ (4,594) | $ (4,810)
Fair Value Nonrecurring Basis |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value | 9,479 | 4,225
Individually evaluated loans |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value | 8,770 | 4,175
Individually evaluated loans | Fair Value Nonrecurring Basis |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value | 8,770 | 4,175
Losses from fair value adjustments assets and liabilities | (4,575) | (4,498)
Real estate owned |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value | 709 | 50
Real estate owned | Fair Value Nonrecurring Basis |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value | 709 | 50
Foreclosed Assets | Fair Value Nonrecurring Basis |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Losses from fair value adjustments assets and liabilities | $ (19) | $ (312)

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