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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Analysis of Past-Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total Loans | $ 21,258,374 | $ 20,739,906
Loans 90 Days or More Past Due and Still Accruing | 9,325 | 17,733
Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 205,571 | 244,978
Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 67,636 | 106,949
Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 40,618 | 31,540
Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 97,317 | 106,489
Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 21,052,803 | 20,494,928
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 3,299,269 | 2,953,135
Loans 90 Days or More Past Due and Still Accruing | 0 | 5,159
Commercial and industrial | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 22,664 | 31,057
Commercial and industrial | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 7,687 | 12,300
Commercial and industrial | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 5,410 | 5,908
Commercial and industrial | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 9,567 | 12,849
Commercial and industrial | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 3,276,605 | 2,922,078
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 202,688 | 221,735
Loans 90 Days or More Past Due and Still Accruing | 0 | 0
Consumer | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,332 | 3,548
Consumer | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 619 | 2,672
Consumer | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 546 | 557
Consumer | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 167 | 319
Consumer | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 201,356 | 218,187
Mortgage warehouse |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,083,941 | 965,053
Loans 90 Days or More Past Due and Still Accruing | 0 | 0
Mortgage warehouse | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Mortgage warehouse | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Mortgage warehouse | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Mortgage warehouse | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Mortgage warehouse | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,083,941 | 965,053
Municipal |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 437,823 | 441,408
Loans 90 Days or More Past Due and Still Accruing | 0 | 0
Municipal | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Municipal | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Municipal | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Municipal | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 0 | 0
Municipal | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 437,823 | 441,408
Premium finance |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,358,259 | 1,155,614
Loans 90 Days or More Past Due and Still Accruing | 9,325 | 12,485
Premium finance | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 32,088 | 33,868
Premium finance | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 15,247 | 15,068
Premium finance | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 7,516 | 6,315
Premium finance | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 9,325 | 12,485
Premium finance | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,326,171 | 1,121,746
Real estate – construction and development |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,411,178 | 1,998,506
Loans 90 Days or More Past Due and Still Accruing | 0 | 89
Real estate – construction and development | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,222 | 27,349
Real estate – construction and development | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 275 | 23,102
Real estate – construction and development | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 41 | 461
Real estate – construction and development | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 906 | 3,786
Real estate – construction and development | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 1,409,956 | 1,971,157
Real estate – commercial and farmland |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 9,054,927 | 8,445,958
Loans 90 Days or More Past Due and Still Accruing | 0 | 0
Real estate – commercial and farmland | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 14,193 | 15,202
Real estate – commercial and farmland | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 4,307 | 6,787
Real estate – commercial and farmland | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 4,462 | 2,435
Real estate – commercial and farmland | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 5,424 | 5,980
Real estate – commercial and farmland | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 9,040,734 | 8,430,756
Real estate – residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 4,410,289 | 4,558,497
Loans 90 Days or More Past Due and Still Accruing | 0 | 0
Real estate – residential | Total Loans Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 134,072 | 133,954
Real estate – residential | Loans 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 39,501 | 47,020
Real estate – residential | Loans 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 22,643 | 15,864
Real estate – residential | Loans 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 71,928 | 71,070
Real estate – residential | Current Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | $ 4,276,217 | $ 4,424,543

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