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LOANS AND ALLOWANCE FOR LOAN LOSSES - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | $ 4,524,510 | $ 4,147,691 |  |
Less: Allowance for loan losses | 42,674 | 36,515 | $ 35,273 | $ 49,006
Net loans | 4,481,836 | 4,111,176 |  |
Construction real estate loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 789,744 | 559,681 |  |
Less: Allowance for loan losses | 5,287 | 3,164 | 3,787 | 6,490
1-4 family residential real estate loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 696,738 | 663,519 |  |
Less: Allowance for loan losses | 2,840 | 2,173 | 1,866 | 2,270
Commercial real estate loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 2,168,451 | 1,987,707 |  |
Less: Allowance for loan losses | 32,266 | 28,701 | 26,980 | 35,709
Commercial loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 366,893 | 412,064 |  |
Less: Allowance for loan losses | 2,086 | 2,235 | 2,397 | 4,107
Municipal loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 441,168 | 450,067 |  |
Less: Allowance for loan losses | 19 | 45 | 47 | 46
Loans to individuals |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 61,516 | 74,653 |  |
Less: Allowance for loan losses | $ 176 | $ 197 | $ 196 | $ 384

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