Long-Lived Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 11.7	$ 11.7	$ 35.6	$ 34.6
Amortization of intangible assets	$ 26.2	$ 27.2	$ 76.3	$ 77.9