Basis of Presentation and Summary of Significant Accounting Policies Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014 Restatement Adjustment [Member]	Dec. 31, 2013 Retained earnings [Member]	Sep. 30, 2014 Minimum [Member] weeks	Sep. 30, 2014 Maximum [Member] weeks
Increase (Decrease) in Unrecognized Tax Benefits, Current	$ 19.3
Increase (Decrease) in Unrecognized Tax Benefits, Noncurrent	14.4
Number of weeks in fiscal year, range (in weeks)			52	53
Immaterial misstatement of unrecognized tax benefits and retained earnings, amount		$ (33.7)