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Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Abstract]    
Property, plant and equipment $ 1,028.4 $ 1,045.0
Accumulated depreciation (294.6) (288.1)
Property, plant and equipment, net $ 733.8 $ 756.9