Intangible Assets, net (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 706.8		$ 712.3
Intangible assets subject to amortization, Accumulated Amortization	(286.5)		(262.6)
Intangible assets
Intangible assets, Gross Carrying Amount	1,482.4		1,490.0
Amortization expense for intangible assets	27.7	$ 28.2
Changes in intangible assets due to foreign currency translation losses	4.7
Summary of estimated aggregate amortization expense for the remaining six months of 2015 and each of the next five years
2015	26.7
2016	52.0
2017	47.7
2018	43.4
2019	43.3
2020	43.3
Trade names
Intangible assets not subject to amortization:
Intangible assets not subject to amortization, Gross Carrying Amount	775.6		777.7
Covenants not to compete
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	1.4		2.3
Intangible assets subject to amortization, Accumulated Amortization	$ (0.9)		(1.7)
Weighted average amortizable life in years	4 years 4 months 24 days
Customer lists/relationships
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 690.9		694.7
Intangible assets subject to amortization, Accumulated Amortization	$ (273.7)		(249.3)
Weighted average amortizable life in years	14 years 2 months 12 days
Software - internal use
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 8.1		8.1
Intangible assets subject to amortization, Accumulated Amortization	$ (7.5)		(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		7.2
Intangible assets subject to amortization, Accumulated Amortization	$ (4.4)		$ (4.5)
Weighted average amortizable life in years	5 years 4 months 24 days