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MULTI-EMPLOYER WITHDRAWAL LIABILITIES (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Multi-employer withdrawal liability |  |
Quarterly payments to ILA-PRSSA over an estimated period | $ 1.0 |
Estimated future benefit payments |  |
Current portion of multi-employer withdrawal liability | (4.1) | $ (4.1)
Long-term portion of multi-employer withdrawal liability | 46.5 | $ 48.6
Horizon | ILA-PRSSA Pension Fund |  |
Estimated future benefit payments |  |
2024 | 4.1 |
2025 | 4.1 |
2026 | 4.1 |
2027 | 4.1 |
2028 | 4.1 |
Thereafter | 47.3 |
Total remaining future undiscounted payments due | 67.8 |
Less: amount representing interest | (17.2) |
Present value of multi-employer withdrawal liability | 50.6 |
Current portion of multi-employer withdrawal liability | (4.1) |
Long-term portion of multi-employer withdrawal liability | $ 46.5 |

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