Revenue Recognition - Schedule of ASC 606 Impact on Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income (loss)	$ (67.5)	$ 44.5	$ 49.6	$ 46.4
Comprehensive income (loss)	(79.3)	$ 105.2	(59.3)	$ 319.4
Adjustments | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income (loss)	(4.4)		(4.1)
Comprehensive income (loss)	(4.4)		(4.1)
Balances without adoption of ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income (loss)	(71.9)		45.5
Comprehensive income (loss)	$ (83.7)		$ (63.4)