Changes in Accumulated Other Comprehensive Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 17, 2012		Nov. 19, 2011
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Pension Liability Adjustments, net of taxes, Beginning balance	$ 93,967
Other comprehensive (income) loss	(1,435)	[1]	(10,419)	[1]
Pension Liability Adjustments, net of taxes, Ending balance	92,532
Balance at August 25, 2012	50,267	[2]
Other comprehensive (income) loss	2,059	[2]
Balance at November 17, 2012	52,326	[2]
Unrealized Loss (Gain) on Marketable Securities, net of taxes, Beginning Balance	(351)
Other comprehensive (income) loss	(10)
Unrealized Loss (Gain) on Marketable Securities, net of taxes, Ending Balance	(361)
Net Derivative Activity, net of taxes, Beginning Balance	8,130
Other comprehensive (income) loss	(165)	[3]	(2,877)	[3]
Net Derivative Activity, net of taxes, Ending Balance	7,965
Accumulated Other Comprehensive Loss, Beginning balance	152,013
Other comprehensive (income) loss	449
Accumulated Other Comprehensive Income Loss Net of Tax Ending Balance	$ 152,462

[1] Pension liability adjustments are presented net of taxes of $1,898 in fiscal 2013 and $8,159 in fiscal 2012

[2] Foreign currency is not shown net of tax as earnings of non-U.S. subsidiaries are intended to be permanently reinvested.

[3] Net derivative activities are presented net of taxes of $103 in fiscal 2013 and $2,470 in fiscal 2012