Segment Information (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting [Abstract]
Adjusted EBITDA	$ 115.1	$ 52.4	$ 413.2	$ 146.5
Interest expense	(54.3)	(8.1)	(147.2)	(23.8)
Depreciation and amortization expense	(62.0)	(18.9)	(176.3)	(57.2)
Restructuring and related expenses	(4.5)	(0.6)	(18.2)	(1.0)
Manufacturer's profit in inventory adjustment	(1.3)	0.0	(58.0)	(12.0)
Acquisition transaction costs	(15.0)	(7.7)	(70.4)	(18.4)
Non-cash fair value adjustment to contingent consideration	(2.7)	(2.3)	(6.3)	(26.1)
Legal settlement	0.0	0.0	16.0	0.0
Acquisition put option settlement	0.0	0.0	3.0	0.0
Foreign exchange loss on foreign denominated external and internal debt	(33.0)	(2.6)	(26.8)	(2.6)
Fair value loss on foreign exchange forward contract	(48.1)	0.0	(48.1)	0.0
Other income	1.6	0.1	4.0	0.5
Net (loss) income before income taxes and non-controlling interest	(104.2)	12.3	(115.1)	5.9
Income tax (expense) benefit	(17.6)	1.6	(42.0)	3.6
Net income attributable to the non-controlling interests	(0.5)	(2.0)	(4.0)	(5.4)
Net (loss) income attributable to stockholders	$ (122.3)	$ 11.9	$ (161.1)	$ 4.1