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LOANS - Total Loans Outstanding (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 5,055,226 | $ 4,919,997 |  |  |  |
Percentage of loans receivable | 100.00% | 100.00% |  |  |  |
Less: Allowance for credit losses | $ (80,711) | $ (71,972) | $ (73,180) | $ (72,058) | $ (71,215) | $ (72,606)
Net deferred loan fees | (2,885) | (3,463) |  |  |  |
Loans, net | 4,971,630 | 4,844,562 |  |  |  |
Total commercial loans | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 4,487,424 | $ 4,367,788 |  |  |  |
Percentage of loans receivable | 88.80% | 88.80% |  |  |  |
Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 567,802 | $ 552,209 |  |  |  |
Percentage of loans receivable | 11.20% | 11.20% |  |  |  |
Other consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 97,895 | $ 96,022 |  |  |  |
Percentage of loans receivable | 1.90% | 1.90% |  |  |  |
Commercial and industrial loans: |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 1,526,277 | $ 1,420,764 |  |  |  |
Percentage of loans receivable | 30.20% | 28.90% |  |  |  |
Commercial and industrial loans: | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Less: Allowance for credit losses | $ (39,161) | $ (30,338) | (30,720) | (30,978) | (31,190) | (35,290)
Commercial and industrial loans: | Working capital lines of credit loans | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 697,754 | $ 604,893 |  |  |  |
Percentage of loans receivable | 13.80% | 12.30% |  |  |  |
Commercial and industrial loans: | Non-working capital loans | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 828,523 | $ 815,871 |  |  |  |
Percentage of loans receivable | 16.40% | 16.60% |  |  |  |
Commercial real estate and multi-family residential loans: |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 2,503,380 | $ 2,437,534 |  |  |  |
Percentage of loans receivable | 49.50% | 49.50% |  |  |  |
Commercial real estate and multi-family residential loans: | Construction and land development loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 658,345 | $ 634,435 |  |  |  |
Percentage of loans receivable | 13.00% | 12.90% |  |  |  |
Commercial real estate and multi-family residential loans: | Owner occupied loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 830,018 | $ 825,464 |  |  |  |
Percentage of loans receivable | 16.40% | 16.80% |  |  |  |
Commercial real estate and multi-family residential loans: | Nonowner occupied loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 762,365 | $ 724,101 |  |  |  |
Percentage of loans receivable | 15.10% | 14.70% |  |  |  |
Commercial real estate and multi-family residential loans: | Multifamily loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 252,652 | $ 253,534 |  |  |  |
Percentage of loans receivable | 5.00% | 5.10% |  |  |  |
Agri-business and agricultural loans: |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 361,064 | $ 388,764 |  |  |  |
Percentage of loans receivable | 7.20% | 7.90% |  |  |  |
Agri-business and agricultural loans: | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Less: Allowance for credit losses | $ (3,668) | $ (4,150) | $ (4,112) | $ (4,402) | $ (4,621) | $ (4,429)
Agri-business and agricultural loans: | Loans secured by farmland | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 161,410 | $ 162,890 |  |  |  |
Percentage of loans receivable | 3.20% | 3.30% |  |  |  |
Agri-business and agricultural loans: | Loans for agricultural production | Commercial Portfolio Segment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 199,654 | $ 225,874 |  |  |  |
Percentage of loans receivable | 4.00% | 4.60% |  |  |  |
Other commercial loans: |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 96,703 | $ 120,726 |  |  |  |
Percentage of loans receivable | 1.90% | 2.50% |  |  |  |
Consumer 1-4 family mortgage loans: |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 469,907 | $ 456,187 |  |  |  |
Percentage of loans receivable | 9.30% | 9.30% |  |  |  |
Consumer 1-4 family mortgage loans: | Closed end first mortgage loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 259,094 | $ 258,103 |  |  |  |
Percentage of loans receivable | 5.10% | 5.20% |  |  |  |
Consumer 1-4 family mortgage loans: | Open end and junior lien loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 197,861 | $ 189,663 |  |  |  |
Percentage of loans receivable | 3.90% | 3.90% |  |  |  |
Consumer 1-4 family mortgage loans: | Residential construction and land development loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 12,952 | $ 8,421 |  |  |  |
Percentage of loans receivable | 0.30% | 0.20% |  |  |  |

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