Accumulated Other Comprehensive Loss - Schedule of Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Balance				$ 1,495.1
Other comprehensive (loss) income before reclassifications				(33.9)
Amounts reclassified from accumulated other comprehensive loss				(2.7)
Total other comprehensive income		$ (0.8)	$ 35.8	(38.2)	$ 117.2
Balance		1,367.3		1,367.3
Accounting Standards Update 2018-02
Accumulated Other Comprehensive Income Loss [Line Items]
Total other comprehensive income				(36.6)
Unrecognized Defined Benefit and Postretirement Plan Costs
Accumulated Other Comprehensive Income Loss [Line Items]
Balance				(18.5)
Other comprehensive (loss) income before reclassifications				0.4
Amounts reclassified from accumulated other comprehensive loss				(0.5)
Total other comprehensive income				(0.1)
Balance		(18.6)		(18.6)
Change in Fair Value of Derivatives Products
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	[1]			14.8
Other comprehensive (loss) income before reclassifications	[1]			(8.1)
Amounts reclassified from accumulated other comprehensive loss	[1]			(2.2)
Total other comprehensive income	[1]			(10.3)
Balance	[1]	4.5		4.5
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance				(41.3)
Other comprehensive (loss) income before reclassifications				(26.2)
Total other comprehensive income				(26.2)
Balance		(67.5)		(67.5)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance				(45.0)
Balance		$ (81.6)		$ (81.6)

[1] Includes forward foreign exchange contracts and interest rate derivatives