Commitments and Contingencies, Legal Proceedings (Details) (USD $) In Millions, unless otherwise specified		1 Months Ended	3 Months Ended
	Sep. 30, 2013	Sep. 09, 2011 2011 California state derivative lawsuits Lawsuit	Dec. 28, 2011 2011 Federal derivative lawsuit Lawsuit
Loss Contingencies [Line Items]
Number of purported shareholder derivative actions		4	2
Settlement including interest with the IRS related to intercompany R&D cost sharing arrangement	$ 19.6