Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Depreciation, amortization and accretion	$ 45.0	$ 43.1	[1],[2]	$ 37.9	[1],[2]

[1] The financial information presented has been retrospectively adjusted for acquisitions of businesses under common control.

[2] The financial information presented has been retrospectively adjusted for acquisitions of businesses under common control.