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LOANS - Summary of Loans and Credit Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023
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Summary of loans |  |  |  |  |  |  |  |
Loans | $ 5,167,574 | $ 5,728,237 | $ 5,829,057 | $ 5,933,158 | $ 6,103,592 | $ 6,253,435 | $ 6,339,422 | $ 6,326,924
Net deferred loan fees | 1,400 |  |  |  | 3,800 |  |  |
Unearned income | 56,700 |  |  |  | 66,400 |  |  |
Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 4,251,326 |  |  |  | 4,364,892 |  |  |
Lease financing |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 391,390 |  |  |  | 473,350 |  |  |
Commercial | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 818,496 |  |  |  | 825,938 |  |  |
Commercial other | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 541,324 |  |  |  | 679,516 |  |  |
Commercial real estate non-owner occupied | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 1,628,961 |  |  |  | 1,622,668 |  |  |
Commercial real estate owner occupied | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 440,806 |  |  |  | 436,857 |  |  |
Multi-family | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 454,249 |  |  |  | 279,904 |  |  |
Farmland | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 67,648 |  |  |  | 67,416 |  |  |
Construction and land development | Commercial Loan Portfolio |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 299,842 |  |  |  | 452,593 |  |  |
Residential first lien | Residential real estate: |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 315,775 |  |  |  | 317,388 |  |  |
Other residential | Residential real estate: |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 64,782 |  |  |  | 63,195 |  |  |
Consumer | Consumer: |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | 96,202 |  |  |  | 107,743 |  |  |
Consumer other | Consumer: |  |  |  |  |  |  |  |
Summary of loans |  |  |  |  |  |  |  |
Loans | $ 48,099 |  |  |  | $ 777,024 |  |  |

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