Condensed Consolidated Financial Statements (Details)	3 Months Ended		9 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Mar. 29, 2013
Condensed Consolidated Financial Statements [Abstract]
Fiscal year term, minimum (weeks)			P52W
Fiscal year term, maximum (weeks)			P53W
Fiscal quarter term (weeks)	P13W	P14W	P13W