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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Amortized Cost and Unpaid Principal for Loans Held for Investment (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | $ 4,986,922 | $ 4,546,960
Unpaid Principal | 5,000,927 | 4,552,777
Difference | (14,005) | (5,817)
Allowance for credit losses | (33,549) | (40,714)
Loans, net | 4,953,373 | 4,506,246
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 769,314 | 777,689
Unpaid Principal | 769,589 | 777,980
Difference | (275) | (291)
Construction, land development, land |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 204,247 | 203,804
Unpaid Principal | 204,483 | 204,268
Difference | (236) | (464)
1-4 family residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 180,970 | 154,020
Unpaid Principal | 180,211 | 153,711
Difference | 759 | 309
Farmland |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 43,208 | 56,366
Unpaid Principal | 43,278 | 56,450
Difference | (70) | (84)
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 1,144,872 | 1,119,245
Unpaid Principal | 1,155,281 | 1,120,551
Difference | (10,409) | (1,306)
Factored receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 1,424,631 | 1,204,510
Unpaid Principal | 1,428,388 | 1,208,486
Difference | (3,757) | (3,976)
Loans, net |  | 19,361
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 17,235 | 8,000
Unpaid Principal | 17,252 | 8,005
Difference | (17) | (5)
Mortgage warehouse |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost | 1,202,445 | 1,023,326
Unpaid Principal | 1,202,445 | 1,023,326
Difference | $ 0 | $ 0

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