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
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