Revenue Recognition - Schedule of ASC 606 Impact on Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income	$ 80.8	$ 71.6
Comprehensive income	153.0	$ 127.1
Adjustments | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income	(2.5)
Comprehensive income	(2.5)
Balances without adoption of ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income	78.3
Comprehensive income	$ 150.5