Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Components of amortized intangible assets
Gross Carrying Amount	$ 285.2		$ 296.4
Accumulated Amortization	(127.7)		(127.8)
Amortization expense for intangible assets	7.2	$ 7.8
Estimated amortization expense
Remainder of fiscal year	7.2
2016	14.3
2017	14.2
2018	14.2
2019	14.0
2020	13.3
Contract based
Components of amortized intangible assets
Gross Carrying Amount	10.7		10.7
Accumulated Amortization	(1.4)		(1.2)
Technology based
Components of amortized intangible assets
Gross Carrying Amount	80.4		81.0
Accumulated Amortization	(45.9)		(43.9)
Marketing related
Components of amortized intangible assets
Gross Carrying Amount	11.0		16.3
Accumulated Amortization	(4.9)		(9.1)
Customer based
Components of amortized intangible assets
Gross Carrying Amount	183.1		188.4
Accumulated Amortization	$ (75.5)		$ (73.6)