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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans Accounted for on a Nonaccrual Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | $ 164,686 | $ 151,117
Financing receivable, nonaccrual, no allowance | 89,612 | 86,577
Commercial, financial and agricultural |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 16,760 | 8,059
Financing receivable, nonaccrual, no allowance | 4,874 | 2,049
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 1,306 | 1,153
Indirect automobile |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 309 | 299
Real estate – construction and development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 282 | 282
Real estate – commercial and farmland |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 10,777 | 11,295
Financing receivable, nonaccrual, no allowance | 5,412 | 9,109
Real estate – residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 135,252 | 130,029
Financing receivable, nonaccrual, no allowance | 79,326 | 75,419
Real estate – residential | GNMA |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | $ 84,200 | $ 90,200

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