Intangible Assets, net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	$ 719.3	$ 577.7
Intangible assets subject to amortization, Accumulated Amortization	(241.0)	(188.6)
Intangible assets
Intangible assets, Gross Carrying Amount	1,454.8	1,125.1
Changes in intangible assets due to foreign currency translation losses	6.7
Impairment of intangible assets	14.9	2.5	0
Amortization expense for intangible assets	54.9	45.4	35.8
Summary of estimated aggregate amortization expense for the remaining six months of 2013 and each of the next five years
2014	55.8
2015	53.7
2016	52.0
2017	47.5
2018	41.4
Amendment of the entity's syndicated credit agreement and the new indenture
Intangible assets
Intangible assets, Gross Carrying Amount	10.3
2013 acquisitions
Intangible assets
Intangible assets acquired, excluding goodwill	345.8
Trade names
Intangible assets not subject to amortization:
Intangible assets not subject to amortization, Gross Carrying Amount	735.5	547.4
Intangible assets
Impairment of intangible assets	14.9	2.5
Covenants not to compete
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	8.0	8.0
Intangible assets subject to amortization, Accumulated Amortization	(7.3)	(7.1)
Loan fees
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	41.5	31.2
Intangible assets subject to amortization, Accumulated Amortization	(24.1)	(20.2)
Customer lists/relationships
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	654.3	524.0
Intangible assets subject to amortization, Accumulated Amortization	(200.6)	(153.3)
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	(6.3)	(5.5)
Other
Intangible assets subject to amortization:
Intangible assets subject to amortization, Gross Carrying Amount	7.4	6.4
Intangible assets subject to amortization, Accumulated Amortization	$ (2.7)	$ (2.5)