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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Financial instruments (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Fair value disclosure |  |  |
Repayment of debt | $ 17,317 | $ 16,767 |
Outstanding withdrawal liability | 18,500 |  |
Accrued expenses |  |  |
Fair value disclosure |  |  |
Outstanding withdrawal liability | 800 |  |
Carrying Value |  |  |
Fair value disclosure |  |  |
Financial instruments | 232,703 |  | $ 207,805
Fair Value | Level 2 |  |  |
Fair value disclosure |  |  |
Financial instruments | 230,986 |  | 204,458
Credit Facility | Carrying Value |  |  |
Fair value disclosure |  |  |
Financial instruments | 25,000 |  |
Credit Facility | Fair Value | Level 2 |  |  |
Fair value disclosure |  |  |
Financial instruments | 25,000 |  |
Notes payable | Carrying Value |  |  |
Fair value disclosure |  |  |
Financial instruments | 189,220 |  | 189,134
Notes payable | Fair Value | Level 2 |  |  |
Fair value disclosure |  |  |
Financial instruments | 189,070 |  | 187,675
New England Pension Fund withdrawal liability | Carrying Value |  |  |
Fair value disclosure |  |  |
Financial instruments | 18,483 |  | 18,671
New England Pension Fund withdrawal liability | Fair Value | Level 2 |  |  |
Fair value disclosure |  |  |
Financial instruments | $ 16,916 |  | $ 16,783
Measurement input | 0.058 |  | 0.06
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