Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Components of amortized intangible assets
Gross Carrying Amount	$ 307.7		$ 282.7
Accumulated Amortization	(141.5)		(132.9)
Amortization expense for intangible assets	7.5	$ 7.2
Estimated amortization expense
Remainder of fiscal year	7.9
2017	15.8
2018	15.8
2019	15.7
2020	14.7
2021	13.5
Contract based
Components of amortized intangible assets
Gross Carrying Amount	9.6		10.0
Accumulated Amortization	(1.2)		(1.2)
Technology based
Components of amortized intangible assets
Gross Carrying Amount	79.8		79.6
Accumulated Amortization	(49.8)		(47.5)
Marketing related
Components of amortized intangible assets
Gross Carrying Amount	14.3		12.7
Accumulated Amortization	(8.8)		(7.8)
Customer based
Components of amortized intangible assets
Gross Carrying Amount	204.0		180.4
Accumulated Amortization	$ (81.7)		$ (76.4)