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OTHER LONG-TERM LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2021
Other Liabilities Disclosure [Abstract]  
Schedule of other long-term liabilities
Other long-term liabilities consisted of the following:
(in millions)December 31,
2021
December 31,
2020
Environmental liabilities$142.1 $141.9 
Defined benefit pension plan liabilities47.0 73.5 
Contingent consideration29.4 — 
Post-retirement medical plan liabilities18.2 22.0 
Early railcar return liability 6.0 13.9 
Other9.7 17.2 
Total other long-term liabilities$252.4 $268.5