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Inventories (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 119.5 $ 113.4
Work in process 44.6 41.9
Finished goods 99.0 95.7
Supplies and other 9.3 8.5
Total $ 272.4 $ 259.5