New Accounting Pronouncements New Accounting Pronouncements (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Accounting Changes and Error Corrections [Abstract]
Income tax excess tax benefit adjustment - ASU 2016-09 Adoption	$ 3.6	$ 6.6
Operating/Financing cash flow impact of ASU 2016-09		$ 6.6	$ 6.2

Income tax excess tax benefit adjustment - ASU 2016-09 Adoption

No definition available.

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