Intangible Assets, net (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 754.7		$ 752.2
Intangible assets subject to amortization, Accumulated Amortization	(381.1)		(353.1)
Intangible assets
Intangible assets, Gross Carrying Amount	1,507.8		1,504.4
Amortization expense for intangible assets	26.7	$ 27.1
Changes in intangible assets due to foreign currency translation gains	2.1
Summary of estimated aggregate amortization expense for the remaining of 2017 and each of the succeeding five years
2017 (remaining six months)	23.7
2018	46.2
2019	46.0
2020	46.0
2021	42.1
2022	33.9
Trade names
Intangible assets not subject to amortization:
Intangible assets not subject to amortization, Gross Carrying Amount	$ 753.1		752.2
Covenants not to compete
Intangible assets subject to amortization:
Weighted average amortizable life in years	4 years 9 months 18 days
Intangible assets subject to amortization, Gross Carrying Amount	$ 1.1		1.1
Intangible assets subject to amortization, Accumulated Amortization	$ (0.7)		(0.6)
Customer lists/relationships
Intangible assets subject to amortization:
Weighted average amortizable life in years	14 years 7 months 6 days
Intangible assets subject to amortization, Gross Carrying Amount	$ 739.0		736.7
Intangible assets subject to amortization, Accumulated Amortization	$ (366.5)		(338.9)
Software
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	$ (8.1)		(8.1)
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	$ 6.5		6.3
Intangible assets subject to amortization, Accumulated Amortization	$ (5.8)		$ (5.5)