Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future Amortization Expense 2016	$ 23.2
Future Amortization Expense 2017	21.7
Future Amortization Expense 2018	20.1
Future Amortization Expense 2019	17.1
Future Amortization Expense 2020	16.0
Finite-Lived Intangible Assets [Line Items]
Amortization Expense of Intangible Assets	26.1	$ 29.4	$ 26.8
Acquired Finite-Lived Intangible Assets related to Acquisitions	9.6	48.6
Gross Amount	327.7	340.9
Accumulated Amortization	(179.4)	(165.9)
Net Amount	148.3	175.0
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Gross Amount	249.0	255.8
Accumulated Amortization	(150.0)	(139.3)
Net Amount	99.0	116.5
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Amount	65.0	71.0
Accumulated Amortization	(25.7)	(22.8)
Net Amount	39.3	48.2
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Amount	13.7	14.1
Accumulated Amortization	(3.7)	(3.8)
Net Amount	$ 10.0	$ 10.3
Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Useful Life	7 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Useful Life	15 years