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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) loan loan_segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans held for sale | $ 18,663 | $ 18,934 |
Loans | 12,854,359 | 12,486,027 |
Fiscal year before current fiscal year | 1,733,843 | 2,546,512 |
Two years before current fiscal year | $ 1,937,367 | 2,063,941 |
Number of loan segments | loan_segment | 10 |  |
Allowance for credit losses increase (decrease) | $ 12,200 |  |
Net charge-offs | 49,400 |  |
Loans charge-offs | 54,243 | 28,039 | $ 6,601
Provision (reversal) for credit losses | 37,200 | 7,300 | $ 0
Release in reserve | 1,500 |  |
Net provision expense | 35,700 |  |
Provision for credit losses - unfunded commitments | $ 1,500 | 3,800 |
Standby Letters of Credit |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Term | 2 years |  |
Construction Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | $ 792,144 | 957,545 |
Decrease in past due loans | 4,000 |  |
Fiscal year before current fiscal year | 225,682 | 271,917 |
Two years before current fiscal year | 152,105 | 203,672 |
Commercial and industrial loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 4,114,292 | 3,670,948 |
Decrease in past due loans | 2,900 |  |
Fiscal year before current fiscal year | 539,311 | 498,757 |
Two years before current fiscal year | 244,687 | 272,427 |
Commercial real estate, non-owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 2,274,016 | 2,400,839 |
Fiscal year before current fiscal year | 287,464 | 535,962 |
Two years before current fiscal year | 384,409 | 542,551 |
Residential Real Estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 2,374,729 | 2,288,921 |
Decrease in past due loans | 6,700 |  |
Fiscal year before current fiscal year | 417,417 | 704,355 |
Two years before current fiscal year | $ 687,790 | 448,226 |
Commercial and Industrial Loan Two |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of loans charge-offs | loan | 2 |  |
Loans charge-offs | $ 42,700 |  |
Commercial real estate, owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 1,157,944 | 1,162,083 |
Fiscal year before current fiscal year | 160,646 | 208,567 |
Two years before current fiscal year | 175,469 | 269,848 |
Past Due |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 116,200 | 79,200 |
Decrease in past due loans | 37,000 |  |
30-59 Days Past Due |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 35,773 | 34,075 |
Decrease in past due loans | 1,700 |  |
30-59 Days Past Due | Construction Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 4,332 | 0 |
30-59 Days Past Due | Commercial and industrial loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 7,428 | 5,021 |
30-59 Days Past Due | Commercial real estate, non-owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 2,407 | 12,995 |
30-59 Days Past Due | Residential Real Estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 12,302 | 11,810 |
30-59 Days Past Due | Commercial real estate, owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 3,783 | 0 |
60-89 Days Past Due |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 32,581 | 11,189 |
Decrease in past due loans | 21,400 |  |
60-89 Days Past Due | Construction Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 22,005 | 1,957 |
Decrease in past due loans | 20,000 |  |
60-89 Days Past Due | Commercial and industrial loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 473 | 1,622 |
60-89 Days Past Due | Commercial real estate, non-owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 1,718 | 195 |
60-89 Days Past Due | Residential Real Estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 6,606 | 5,472 |
60-89 Days Past Due | Commercial real estate, owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 0 | 104 |
90 Days or More Past Due |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 47,809 | 33,980 |
Decrease in past due loans | 13,800 |  |
90 Days or More Past Due | Construction Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 3,988 | 0 |
90 Days or More Past Due | Commercial and industrial loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 9,786 | 6,858 |
90 Days or More Past Due | Commercial real estate, non-owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 10,342 | 11,465 |
90 Days or More Past Due | Residential Real Estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | 18,819 | 12,143 |
90 Days or More Past Due | Commercial real estate, owner occupied |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | $ 300 | $ 110 |

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