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Inventories, Net - Components of Inventories (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished products $ 163.7 $ 157.6
Work in process 17.7 8.0
Raw materials and supplies 130.0 95.3
Inventories, net $ 311.4 $ 260.9