Accounting Pronouncements Recently Issued Adoption of new accounting guidance, impacts (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Revenue	$ (9.9)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ (6.4)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share	$ (0.13)