Property, Plant, and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Depreciation [Abstract]
Depreciation expense	$ 83.6	$ 79.9	$ 166.0	$ 160.6
Purchases of property, plant, and equipment included in accounts payable			$ 19.0		$ 12.8