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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Past Due Aging of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 12,486,027 | $ 12,003,894
Loans > 90 Days or More Past Due And Accruing | 172 | 1,737
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,406,783 | 11,952,887
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 34,075 | 29,051
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,189 | 5,935
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 33,980 | 16,021
Commercial and industrial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,670,948 | 3,437,126
Loans > 90 Days or More Past Due And Accruing | 86 | 1,147
Commercial and industrial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,657,447 | 3,429,314
Commercial and industrial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,021 | 4,904
Commercial and industrial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,622 | 434
Commercial and industrial loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,858 | 2,474
Agricultural land, production and other loans to farmers |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 263,414 | 241,793
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 | 263,414 | 241,739
Agricultural land, production and other loans to farmers | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 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 | 54
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 957,545 | 835,582
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 955,588 | 832,716
Construction | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 2,436
Construction | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,957 | 418
Construction | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 12
Commercial real estate, non-owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,400,839 | 2,407,475
Loans > 90 Days or More Past Due And Accruing | 0 | 264
Commercial real estate, non-owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,376,184 | 2,395,495
Commercial real estate, non-owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,995 | 5,946
Commercial real estate, non-owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 195 | 881
Commercial real estate, non-owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,465 | 5,153
Commercial real estate, owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,162,083 | 1,246,528
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Commercial real estate, owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,161,869 | 1,241,714
Commercial real estate, owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 4,495
Commercial real estate, owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 104 | 0
Commercial real estate, owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 110 | 319
Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,288,921 | 2,096,655
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Residential | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,259,496 | 2,079,959
Residential | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,810 | 8,607
Residential | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,472 | 2,278
Residential | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,143 | 5,811
Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 617,571 | 630,632
Loans > 90 Days or More Past Due And Accruing | 52 | 326
Home equity | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 608,948 | 624,543
Home equity | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,614 | 2,206
Home equity | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,647 | 1,782
Home equity | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,362 | 2,101
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 168,388 | 175,211
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Consumer | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 167,553 | 174,629
Consumer | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 635 | 343
Consumer | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 192 | 142
Consumer | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 8 | 97
Public finance and other commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 956,318 | 932,892
Loans > 90 Days or More Past Due And Accruing | 34 | 0
Public finance and other commercial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 956,284 | 932,778
Public finance and other commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 114
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 | $ 34 | $ 0

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