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Summary of Significant Accounting Policies - Schedule Of Inventory, Current (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Finished goods $ 143.4 $ 148.9
Work-in-process 11.0 11.8
Raw materials and supplies 88.7 61.6
Total $ 243.1 $ 222.3