Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Acquisition Costs, Total	$ 115.9	$ 103.6
Accumulated Amortization	19.0	15.5
Net, Total	96.9	88.1
Indefinite-lived tradenames [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Acquisition Costs, Indefinite-lived	$ 18.7	14.0
Non-contractual customer relationships [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted Average Useful Life	12 years 6 months
Acquisition Costs, Finite-lived	$ 76.8	77.3
Accumulated Amortization	16.1	13.2
Net, Finite-lived	$ 60.7	64.1
Technology [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted Average Useful Life	19 years 4 months 24 days
Acquisition Costs, Finite-lived	$ 16.3	8.2
Accumulated Amortization	0.5	0.1
Net, Finite-lived	$ 15.8	8.1
Other [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted Average Useful Life	8 years 10 months 24 days
Acquisition Costs, Finite-lived	$ 4.1	4.1
Accumulated Amortization	2.4	2.2
Net, Finite-lived	$ 1.7	$ 1.9