Components of Restructuring and Other Exit Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			9 Months Ended		6 Months Ended	9 Months Ended	6 Months Ended	9 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan Employee separation costs	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan Contract termination costs	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan Contract termination costs	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan Other associated exit costs	Jul. 01, 2012 Restructuring Fiscal Twenty Eleven Plan Other associated exit costs
Restructuring Cost and Reserve [Line Items]
Total expected to be incurred						$ 11,500	$ 5,500		$ 2,000		$ 4,000
Restructuring and other exit costs	(1,490)	251	(2,612)	177	2,573			73		2,500
Cumulative To-Date Expense						$ 8,053	$ 5,480		$ 73		$ 2,500