Description Of Business and Basis Of Presentation (Details)	3 Months Ended		12 Months Ended
	Mar. 30, 2012 weeks	Apr. 01, 2011 weeks	Sep. 28, 2012 weeks	Sep. 30, 2011 weeks
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Period Number Of Weeks In Fiscal Year			52	52
Fiscal Period Number of Weeks in Fiscal Quarter	13	13