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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Activity in Allowance for Credit Losses on Loans by Portfolio Segment) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 02, 2025 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | $ 3,071 |  |  |
Provision for acquired non-PCD loans | $ 6,300 | 6,293 |  |  |
General provision (credit) for loan losses |  | 2,580 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 46,723 | $ 35,613 | $ 35,728 | $ 36,935
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (1,120) | (345) | (1,883) |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 171 | 187 | 623 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 8,873 | (1,164) | 53 |
Commercial real estate - non-owner-occupied |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 1,659 |  |  |
Provision for acquired non-PCD loans |  | 2,335 |  |  |
General provision (credit) for loan losses |  | 60 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 18,952 | 15,294 | 14,897 | 16,581
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | 0 | 0 | 0 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 1 | 7 | 10 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 2,395 | (1,294) | (1,694) |
Commercial real estate - owner-occupied |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 340 |  |  |
Provision for acquired non-PCD loans |  | 840 |  |  |
General provision (credit) for loan losses |  | 671 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 4,192 | 2,230 | 2,481 | 2,290
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (191) | 0 | 0 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 51 | 0 | 0 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 1,511 | (60) | 191 |
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 575 |  |  |
Provision for acquired non-PCD loans |  | 816 |  |  |
General provision (credit) for loan losses |  | (326) |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 6,135 | 4,460 | 5,856 | 4,869
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (896) | (309) | (1,784) |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 110 | 92 | 455 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 490 | (192) | 2,316 |
Residential real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 305 |  |  |
Provision for acquired non-PCD loans |  | 1,979 |  |  |
General provision (credit) for loan losses |  | 1,607 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 13,872 | 10,565 | 9,979 | 10,254
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (4) | 0 | 0 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 6 | 6 | 26 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 3,586 | 305 | (301) |
Home equity |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 165 |  |  |
Provision for acquired non-PCD loans |  | 268 |  |  |
General provision (credit) for loan losses |  | 589 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 3,416 | 2,360 | 2,397 | 2,217
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (3) | 0 | (1) |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 0 | 80 | 98 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | 857 | 63 | 83 |
Consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Acquired PCD loans(1) |  | 27 |  |  |
Provision for acquired non-PCD loans |  | 55 |  |  |
General provision (credit) for loan losses |  | (21) |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 156 | 704 | 118 | $ 724
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  | (26) | (36) | (98) |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery |  | 3 | 2 | 34 |
Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only |  | $ 34 | $ 14 | $ (542) |

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