Deferred Costs (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 23, 2012	Feb. 29, 2012	Nov. 25, 2011
Deferred Costs and Future Payment Commitment for Retail Supply Agreements [Line Items]
Prepaid expenses and other	$ 98,211	$ 94,071	$ 93,553
Other assets	346,056	395,397	307,611
Deferred cost assets	444,267	489,468	401,164
Other current liabilities	(43,654)	(45,891)	(58,950)
Other liabilities	(124,353)	(137,360)	(64,154)
Deferred cost liabilities	(168,007)	(183,251)	(123,104)
Net deferred costs	$ 276,260	$ 306,217	$ 278,060