Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future Amortization Expense 2014	$ 34,600,000
Future Amortization Expense 2015	34,300,000
Future Amortization Expense 2016	26,800,000
Future Amortization Expense 2017	10,800,000
Future Amortization Expense 2018	9,500,000
Finite-Lived Intangible Assets [Line Items]
Amortization Expense of Intangible Assets	26,800,000	23,400,000	20,200,000
Impairment of Intangible Assets (Excluding Goodwill)			0
Gross Amount	306,600,000	258,800,000
Accumulated Amortization	(142,800,000)	(118,100,000)
Net Amount	163,800,000	140,700,000
Acquired Finite-Lived Intangible Assets related to Acquisitions	21,500,000	67,000,000
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Gross Amount	228,100,000	184,000,000
Accumulated Amortization	(119,800,000)	(96,900,000)
Net Amount	108,300,000	87,100,000
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Amount	64,500,000	59,700,000
Accumulated Amortization	(19,200,000)	(15,500,000)
Net Amount	45,300,000	44,200,000
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Amount	14,000,000	15,100,000
Accumulated Amortization	(3,800,000)	(5,700,000)
Net Amount	$ 10,200,000	$ 9,400,000
Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years