Other Intangible Assets (Schedule of Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Details of other intangible assets
Acquisition Costs	$ 103.6	$ 76.7
Accumulated Amortization	15.5	10.5
Net	88.1	66.2
Tradenames
Details of other intangible assets
Acquisition Costs, Indefinite-lived Intangible Assets	14.0	11.7
Non-contractual customer relationships
Details of other intangible assets
Weighted Average Useful Life (Years)	11 years 10 months 24 days
Acquisition Costs, Finite-lived Intangible Assets	77.3	61.1
Accumulated Amortization	13.2	8.7
Net, Finite-lived Intangible Assets	64.1	52.4
Other
Details of other intangible assets
Weighted Average Useful Life (Years)	17 years 6 months
Acquisition Costs, Finite-lived Intangible Assets	12.3	3.9
Accumulated Amortization	2.3	1.8
Net, Finite-lived Intangible Assets	$ 10.0	$ 2.1