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OTHER LONG-TERM LIABILITIES (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Other Liabilities Disclosure [Abstract]    
Environmental liabilities $ 142.1 $ 141.9
Defined benefit pension plan liabilities 47.0 73.5
Contingent consideration 29.4 0.0
Post-retirement medical plan liabilities 18.2 22.0
Early railcar return liability 6.0 13.9
Other 9.7 17.2
Total other long-term liabilities $ 252.4 $ 268.5