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Summary of Significant Accounting Policies - Schedule Of Inventory, Current (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Finished goods $ 165.5 $ 148.9
Work-in-process 11.5 11.8
Raw materials and supplies 93.8 61.6
Total $ 270.8 $ 222.3