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LOANS - Schedule of Total Loans Outstanding (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 5,251,043 | $ 5,120,635 |  |  |  |
Percentage of loans receivable | 100.00% | 100.00% |  |  |  |
Less: Allowance for credit losses | $ (68,168) | $ (85,960) | $ (66,552) | $ (83,627) | $ (80,711) | $ (71,972)
Net deferred loan fees | (2,424) | (2,687) |  |  |  |
Loans, net | 5,180,451 | 5,031,988 |  |  |  |
Total commercial loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 4,605,071 | $ 4,526,365 |  |  |  |
Percentage of loans receivable | 87.70% | 88.40% |  |  |  |
Total consumer loans | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 645,972 | $ 594,270 |  |  |  |
Percentage of loans receivable | 12.30% | 11.60% |  |  |  |
Other consumer loans | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 112,430 | $ 104,041 |  |  |  |
Percentage of loans receivable | 2.10% | 2.00% |  |  |  |
Commercial and industrial loans: | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 1,518,016 | $ 1,450,865 |  |  |  |
Percentage of loans receivable | 28.90% | 28.30% |  |  |  |
Less: Allowance for credit losses | $ (27,149) | $ (45,539) | (25,882) | (42,605) | (39,161) | (30,338)
Commercial and industrial loans: | Working capital lines of credit loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 709,645 | $ 649,609 |  |  |  |
Percentage of loans receivable | 13.50% | 12.70% |  |  |  |
Commercial and industrial loans: | Non-working capital loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 808,371 | $ 801,256 |  |  |  |
Percentage of loans receivable | 15.40% | 15.60% |  |  |  |
Commercial real estate and multi-family residential loans: | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 2,655,250 | $ 2,592,520 |  |  |  |
Percentage of loans receivable | 50.60% | 50.60% |  |  |  |
Commercial real estate and multi-family residential loans: | Construction and land development loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 574,896 | $ 567,781 |  |  |  |
Percentage of loans receivable | 10.90% | 11.10% |  |  |  |
Commercial real estate and multi-family residential loans: | Owner occupied loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 804,253 | $ 807,090 |  |  |  |
Percentage of loans receivable | 15.30% | 15.80% |  |  |  |
Commercial real estate and multi-family residential loans: | Nonowner occupied loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 863,085 | $ 872,671 |  |  |  |
Percentage of loans receivable | 16.50% | 17.00% |  |  |  |
Commercial real estate and multi-family residential loans: | Multifamily loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 413,016 | $ 344,978 |  |  |  |
Percentage of loans receivable | 7.90% | 6.70% |  |  |  |
Agri-business and agricultural loans: | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 339,972 | $ 387,396 |  |  |  |
Percentage of loans receivable | 6.50% | 7.60% |  |  |  |
Less: Allowance for credit losses | $ (3,219) | $ (3,541) | $ (3,299) | $ (3,414) | $ (3,668) | $ (4,150)
Agri-business and agricultural loans: | Loans secured by farmland | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 153,904 | $ 156,609 |  |  |  |
Percentage of loans receivable | 2.90% | 3.10% |  |  |  |
Agri-business and agricultural loans: | Loans for agricultural production | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 186,068 | $ 230,787 |  |  |  |
Percentage of loans receivable | 3.60% | 4.50% |  |  |  |
Other commercial loans | Total commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 91,833 | $ 95,584 |  |  |  |
Percentage of loans receivable | 1.70% | 1.90% |  |  |  |
Consumer 1-4 family mortgage loans: | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 533,542 | $ 490,229 |  |  |  |
Percentage of loans receivable | 10.20% | 9.60% |  |  |  |
Consumer 1-4 family mortgage loans: | Closed end first mortgage loans | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 273,580 | $ 259,286 |  |  |  |
Percentage of loans receivable | 5.20% | 5.10% |  |  |  |
Consumer 1-4 family mortgage loans: | Open end and junior lien loans | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 241,256 | $ 214,125 |  |  |  |
Percentage of loans receivable | 4.60% | 4.20% |  |  |  |
Consumer 1-4 family mortgage loans: | Residential construction and land development loans | Total consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable before allowance for credit loss | $ 18,706 | $ 16,818 |  |  |  |
Percentage of loans receivable | 0.40% | 0.30% |  |  |  |

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