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FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK - Summary of Contractual or Notional Amounts, Commitments to Fund (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Home equity lines of credit |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Commitments to fund | $ 544,259 | $ 538,204
1-4 family residential construction loans |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Commitments to fund | 98,259 | 107,475
Commercial real estate, construction and land development loans |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Commitments to fund | 216,785 | 236,445
Commercial, industrial and other loans |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Commitments to fund | 628,284 | 706,783
Letters of credit |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Commitments to fund | $ 37,447 | $ 42,691

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