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Inventories - Major Components of Inventory (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished goods $ 127.1 $ 118.5
Work in process 23.3 22.6
Raw materials and supplies 62.7 58.5
Total inventories $ 213.1 $ 199.6