Legal Proceedings (Details) (Stockholder Litigation)	9 Months Ended
	Jun. 23, 2012 federalaction plaintiff classaction
Stockholder Litigation
Legal Proceedings
Number of putative securities fraud class actions	3
Number of putative stockholder derivative actions	3
Total number of putative securities fraud class actions	4
Number of the plaintiffs who voluntarily dismissed their cases	2
Number of federal actions	2
Number of stockholder derivative actions	2
Number of recently-filed actions into the Himmel action	2