Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Components of amortized intangible assets
Gross Carrying Amount	$ 282.7	$ 296.4
Accumulated Amortization	(132.9)	(127.8)
Amortization of Intangible Assets	14.3	15.4	$ 15.5
Estimated amortization expense
2016	14.5
2017	14.4
2018	14.4
2019	14.2
2020	12.8
Contract based
Components of amortized intangible assets
Gross Carrying Amount	10.0	10.7
Accumulated Amortization	(1.2)	(1.2)
Technology [Member]
Components of amortized intangible assets
Gross Carrying Amount	79.6	81.0
Accumulated Amortization	(47.5)	(43.9)
Marketing related
Components of amortized intangible assets
Gross Carrying Amount	12.7	16.3
Accumulated Amortization	(7.8)	(9.1)
Customer based
Components of amortized intangible assets
Gross Carrying Amount	180.4	188.4
Accumulated Amortization	$ (76.4)	$ (73.6)