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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - AOCI (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accumulated other comprehensive income (loss) |  |  |
Beginning Balance | $ 541,073 |  |
Unrecognized actuarial gain, net of tax | 1,637 | $ 2,035 | $ 2,428
Pension settlement, net of tax |  | 195 | 915
Reclassification of foreign currency (gains) losses on assets, net of tax expense of $0, $0, and $0.2 million |  | 1,348 | (500)
Foreign currency translation adjustment |  | 229 | (1,385)
Interest rate swap | 872 | (1,749) | (21)
Ending Balance | 489,493 | 541,073 |
Projected pension benefit obligation, tax | (100) | 0 | (200)
Reclassification of loss on pension settlement, tax | 0 | (200) | (800)
Reclassification of foreign currency losses, tax | 0 | 0 | 200
Unrealized gain on derivatives, tax | (500) | 600 | 0
Accumulated Other Comprehensive Income/(Loss) |  |  |
Accumulated other comprehensive income (loss) |  |  |
Beginning Balance | 8,268 | 6,210 | 4,773
Unrecognized actuarial gain, net of tax | 1,637 | 2,035 | 2,428
Pension settlement, net of tax |  | 195 | 915
Reclassification of foreign currency (gains) losses on assets, net of tax expense of $0, $0, and $0.2 million |  | 1,348 | (500)
Foreign currency translation adjustment |  | 229 | (1,385)
Interest rate swap | 872 | (1,749) | (21)
Ending Balance | 10,777 | 8,268 | 6,210
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
Accumulated other comprehensive income (loss) |  |  |
Beginning Balance | 10,017 | 7,787 | 4,444
Unrecognized actuarial gain, net of tax | 1,637 | 2,035 | 2,428
Pension settlement, net of tax |  | 195 | 915
Ending Balance | 11,654 | 10,017 | 7,787
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |
Accumulated other comprehensive income (loss) |  |  |
Beginning Balance |  | (1,577) | 308
Reclassification of foreign currency (gains) losses on assets, net of tax expense of $0, $0, and $0.2 million |  | 1,348 | (500)
Foreign currency translation adjustment |  | 229 | (1,385)
Ending Balance |  |  | (1,577)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |
Accumulated other comprehensive income (loss) |  |  |
Beginning Balance | (1,749) |  | 21
Interest rate swap | 872 | (1,749) | $ (21)
Ending Balance | $ (877) | $ (1,749) |

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