Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Components of amortized intangible assets
Gross Carrying Amount	$ 308.8		$ 306.5
Accumulated Amortization	(156.5)		(151.3)
Amortization expense for intangible assets	4.2	$ 3.5
Estimated amortization expense
Remainder of fiscal year	11.0
2018	15.5
2019	15.3
2020	14.5
2021	12.6
2022	10.7
Contract based
Components of amortized intangible assets
Gross Carrying Amount	9.0		8.9
Accumulated Amortization	(1.1)		(1.0)
Technology based
Components of amortized intangible assets
Gross Carrying Amount	79.7		79.5
Accumulated Amortization	(53.2)		(52.0)
Marketing related
Components of amortized intangible assets
Gross Carrying Amount	14.4		14.2
Accumulated Amortization	(9.1)		(8.9)
Customer based
Components of amortized intangible assets
Gross Carrying Amount	205.7		203.9
Accumulated Amortization	$ (93.1)		$ (89.4)