Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Beginning Balance	$ (303.7)		$ (196.3)
Adoption of accounting standard			33.6
Other comprehensive (loss) income before reclassifications (1)	(1.1)		17.6
Amounts reclassified from AOCI	0.0		2.2
Net current-period other comprehensive (loss) income	(1.1)		(9.2)
Balance at March 31	(304.8)		$ (205.5)
Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			-29
Translation adjustment
Beginning Balance	(191.5)		$ (116.8)
Other comprehensive (loss) income before reclassifications (1)	1.7	[1]	18.2
Amounts reclassified from AOCI	0.0		0.0
Net current-period other comprehensive (loss) income	1.7		9.1
Balance at March 31	(189.8)		$ (107.7)
Translation adjustment | Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			-9.1
Foreign Currency Hedges
Beginning Balance	(1.9)		$ (5.1)
Other comprehensive (loss) income before reclassifications (1)	(0.6)		(2.8)
Amounts reclassified from AOCI	0.0		0.0
Net current-period other comprehensive (loss) income	(0.6)		(3.8)
Balance at March 31	(2.5)		$ (8.9)
Foreign Currency Hedges | Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			-1.0
Interest Rate Hedges
Beginning Balance	10.6		$ 8.1
Other comprehensive (loss) income before reclassifications (1)	(2.3)		2.2
Amounts reclassified from AOCI	0.5		0.4
Net current-period other comprehensive (loss) income	(1.8)		3.9
Balance at March 31	8.8		12.0
Pension and Other Post-retirement Benefits
Beginning Balance	(121.0)		(82.6)
Other comprehensive (loss) income before reclassifications (1)	0.0		0.0
Amounts reclassified from AOCI	(0.5)		1.8
Net current-period other comprehensive (loss) income	(0.5)		(18.4)
Balance at March 31	(121.5)		$ (101.0)
Pension and Other Post-retirement Benefits | Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			-20.2
Other
Beginning Balance	0.1		$ 0.1
Other comprehensive (loss) income before reclassifications (1)	0.1		0.0
Amounts reclassified from AOCI	0.0		0.0
Net current-period other comprehensive (loss) income	0.1		0.0
Balance at March 31	0.2		$ 0.1
Other | Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			0
AOCI Attributable to Parent
Net current-period other comprehensive (loss) income	(1.1)		$ (9.2)
AOCI Attributable to Parent | Accounting Standards Update 2018-02
Adoption of accounting standard	0.0		$ (29.0)
Accumulated Net Gain (Loss) from Interest Rate Hedge [Member] | Accounting Standards Update 2018-02
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects			1.3
Translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest	$ 2.7

[1] (1) Other comprehensive income (loss) before reclassifications within the translation component excludes $2.7 of translation attributable to noncontrolling interests.