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COMMITMENTS AND CONTINGENCIES - Purchase Commitments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Purchase Commitments      
Aggregate value of raw material purchases $ 698.0 $ 401.8 $ 335.3
Raw material items      
Purchase Commitments      
Purchase commitments $ 273.4    
Obligation term ( in years) 1 year