Goodwill and Other Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Components of amortized intangible assets
Gross Carrying Amount	$ 284.0		$ 296.4
Accumulated Amortization	(123.5)		(127.8)
Amortization expense for intangible assets	3.5us-gaap_AmortizationOfIntangibleAssets	3.9us-gaap_AmortizationOfIntangibleAssets
Estimated amortization expense
Remainder of fiscal year	10.7
2016	14.1
2017	14.0
2018	14.0
2019	13.8
2020	12.8
Contract based
Components of amortized intangible assets
Gross Carrying Amount	10.7		10.7
Accumulated Amortization	(1.3)		(1.2)
Technology based
Components of amortized intangible assets
Gross Carrying Amount	80.3		81.0
Accumulated Amortization	(44.8)		(43.9)
Marketing related
Components of amortized intangible assets
Gross Carrying Amount	10.7		16.3
Accumulated Amortization	(4.6)		(9.1)
Customer based
Components of amortized intangible assets
Gross Carrying Amount	182.3		188.4
Accumulated Amortization	$ (72.8)		$ (73.6)

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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