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Components of Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Inventory, Finished Goods and Work in Process, Net of Reserves [Abstract]    
Raw materials and supplies $ 112.9 $ 85.9
Work in process 33.0 29.0
Finished goods 349.5 302.5
Total $ 495.4 $ 417.4