Intangible Assets, net (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) item	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 674.7	$ 712.3
Intangible assets subject to amortization, Accumulated Amortization	(299.6)	(262.6)
Intangible assets
Intangible assets, Gross Carrying Amount	1,425.0	1,490.0
Changes in intangible assets due to foreign currency translation losses	13.5
Impairment losses of intangible assets, indefinte-lived	21.2		$ 14.9
Impairment losses of intangible assets, finite-lived	14.4
Impairment losses of intangible assets		0.0
Amortization expense for intangible assets	53.7	56.7	$ 54.9
Summary of estimated aggregate amortization expense for each of the next five years
2016	49.3
2017	45.1
2018	40.8
2019	40.6
2020	40.7
Trade names
Intangible assets not subject to amortization:
Intangible assets not subject to amortization, Gross Carrying Amount	$ 750.3	777.7
Intangible assets
Number of intangible assets subject to impairment | item	5
Impairment losses of intangible assets, indefinte-lived	$ 21.2
Covenants not to compete
Intangible assets subject to amortization:
Weighted average amortizable life in years	4 years 4 months 24 days
Intangible assets subject to amortization, Gross Carrying Amount	$ 1.3	2.3
Intangible assets subject to amortization, Accumulated Amortization	$ (1.0)	(1.7)
Customer lists/relationships
Intangible assets subject to amortization:
Weighted average amortizable life in years	14 years 8 months 12 days
Intangible assets subject to amortization, Gross Carrying Amount	$ 659.0	694.7
Intangible assets subject to amortization, Accumulated Amortization	$ (285.7)	(249.3)
Intangible assets
Number of intangible assets subject to impairment | item	2
Impairment losses of intangible assets, finite-lived	$ 14.4
Software - internal use
Intangible assets subject to amortization:
Weighted average amortizable life in years	10 years
Intangible assets subject to amortization, Gross Carrying Amount	$ 8.1	8.1
Intangible assets subject to amortization, Accumulated Amortization	$ (7.9)	(7.1)
Other
Intangible assets subject to amortization:
Weighted average amortizable life in years	5 years 3 months 18 days
Intangible assets subject to amortization, Gross Carrying Amount	$ 6.3	7.2
Intangible assets subject to amortization, Accumulated Amortization	$ (5.0)	$ (4.5)