Intangible Assets, net (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) item	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 701.7	$ 701.7		$ 712.3
Intangible assets subject to amortization, Accumulated Amortization	(312.5)	(312.5)		(262.6)
Intangible assets not subject to amortization:
Impairment losses of intangible assets			$ 0.0
Intangible assets
Intangible assets, Gross Carrying Amount	1,453.2	1,453.2		1,490.0
Amortization expense for intangible assets		41.0	$ 42.3
Changes in intangible assets due to foreign currency translation losses		11.0
Summary of estimated aggregate amortization expense for the remaining three months of 2015 and each of the next five years
2015	12.7	12.7
2016	49.5	49.5
2017	45.2	45.2
2018	40.9	40.9
2019	40.8	40.8
2020	$ 40.8	$ 40.8
Trade names
Intangible assets
Number of intangibles | item	5	5
Intangible assets not subject to amortization:
Intangible assets not subject to amortization, Gross Carrying Amount	$ 751.5	$ 751.5		777.7
Impairment losses of intangible assets	21.2	21.2
Covenants not to compete
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	1.4	1.4		2.3
Intangible assets subject to amortization, Accumulated Amortization	$ (1.0)	$ (1.0)		(1.7)
Weighted average amortizable life in years		4 years 4 months 24 days
Customer lists/relationships
Intangible assets
Number of intangibles | item	2	2
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 685.8	$ 685.8		694.7
Intangible assets subject to amortization, Accumulated Amortization	(299.1)	$ (299.1)		(249.3)
Weighted average amortizable life in years		14 years 2 months 12 days
Impairment losses of intangible assets	14.4	$ 14.4
Software - internal use
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	8.1	8.1		8.1
Intangible assets subject to amortization, Accumulated Amortization	(7.7)	$ (7.7)		(7.1)
Weighted average amortizable life in years		10 years
Other
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	6.4	$ 6.4		7.2
Intangible assets subject to amortization, Accumulated Amortization	$ (4.7)	$ (4.7)		$ (4.5)
Weighted average amortizable life in years		5 years 3 months 18 days