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SIGNIFICANT ACCOUNTING POLICIES - ACCRUED AND OTHER LIABILITIES (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Intangible assets |  |  |
Impairment charges related to finite-lived intangible assets | $ 0.0 | $ 0.0 | $ 0.0
Impairment charges related to indefinite-lived intangible assets and goodwill for impairment | 0.0 | 0.0 | $ 0.0
Accrued and other liabilities |  |  |
Payroll and vacation | 35.8 | 29.2 |
Employee incentives and other benefits | 32.2 | 25.9 |
Insurance reserves and other related liabilities - short term | 9.0 | 7.0 |
Multi-employer withdrawal liability - short-term (see Note 12) | 4.1 | 10.6 |
Income tax and other tax related liabilities | 3.1 | 11.7 |
Other short-term liabilities | 17.2 | 12.4 |
Total | 101.4 | 96.8 |
Other long-term liabilities |  |  |
Multi-employer withdrawal liability (see Note 12) | 50.8 | 52.8 |
Pension and post-retirement liabilities (see Note 11) | 43.3 | 82.0 |
Insurance reserves and other related liabilities | 26.9 | 25.4 |
Other long-term liabilities | 10.0 | 5.6 |
Total | $ 131.0 | $ 165.8 |
Customer Relationships | Maximum |  |  |
Intangible assets |  |  |
Expected useful lives | 21 years |  |

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