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Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Property Plant And Equipment [Abstract]        
Depreciation expense $ 94.9 $ 106.5 $ 288.9 $ 323.4