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LOANS AND ALLOWANCE - Past Due Aging of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 12,639,650 | $ 12,486,027
Loans > 90 Days or More Past Due And Accruing | 1,686 | 172
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,541,459 | 12,406,783
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 29,083 | 34,075
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 30,178 | 11,189
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 38,930 | 33,980
Commercial and industrial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,949,817 | 3,670,948
Loans > 90 Days or More Past Due And Accruing | 385 | 86
Commercial and industrial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,932,986 | 3,657,447
Commercial and industrial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,014 | 5,021
Commercial and industrial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 463 | 1,622
Commercial and industrial loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 10,354 | 6,858
Agricultural land, production and other loans to farmers |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 239,926 | 263,414
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Agricultural land, production and other loans to farmers | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 239,676 | 263,414
Agricultural land, production and other loans to farmers | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 250 | 0
Agricultural land, production and other loans to farmers | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Agricultural land, production and other loans to farmers | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 823,267 | 957,545
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 802,064 | 955,588
Construction | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Construction | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 21,203 | 1,957
Construction | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate, non-owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,323,533 | 2,400,839
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Commercial real estate, non-owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,306,861 | 2,376,184
Commercial real estate, non-owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,789 | 12,995
Commercial real estate, non-owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,799 | 195
Commercial real estate, non-owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 13,084 | 11,465
Commercial real estate, owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,174,195 | 1,162,083
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Commercial real estate, owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,170,516 | 1,161,869
Commercial real estate, owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,237 | 0
Commercial real estate, owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 104
Commercial real estate, owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 442 | 110
Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,370,905 | 2,288,921
Loans > 90 Days or More Past Due And Accruing | 1,187 | 0
Residential | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,342,411 | 2,259,496
Residential | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,483 | 11,810
Residential | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,213 | 5,472
Residential | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,798 | 12,143
Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 631,104 | 617,571
Loans > 90 Days or More Past Due And Accruing | 114 | 52
Home equity | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 621,441 | 608,948
Home equity | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,293 | 3,614
Home equity | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,152 | 1,647
Home equity | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,218 | 3,362
Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 162,089 | 168,388
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Individuals' loans for household and other personal expenditures | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 160,690 | 167,553
Individuals' loans for household and other personal expenditures | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,017 | 635
Individuals' loans for household and other personal expenditures | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 348 | 192
Individuals' loans for household and other personal expenditures | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 34 | 8
Public finance and other commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 964,814 | 956,318
Loans > 90 Days or More Past Due And Accruing | 0 | 34
Public finance and other commercial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 964,814 | 956,284
Public finance and other commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Public finance and other commercial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Public finance and other commercial loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 0 | $ 34

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