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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Composition of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | $ 12,854,359 | $ 12,486,027
Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 4,114,292 | 3,670,948
Agricultural land, production and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 256,312 | 263,414
Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 792,144 | 957,545
Commercial real estate, non-owner occupied |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 2,274,016 | 2,400,839
Commercial real estate, owner occupied |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 1,157,944 | 1,162,083
Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 2,374,729 | 2,288,921
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 659,811 | 617,571
Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 166,028 | 168,388
Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | $ 1,059,083 | $ 956,318

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