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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 01, 2012	Aug. 27, 2011	Sep. 01, 2012	Aug. 27, 2011	Mar. 03, 2012
Income Taxes
Income tax benefit	$ (2,866)	$ (2,712)	$ (64,595)	$ (439)
Recoverable indemnification asset from Jean Coutu Group	60,581		60,581		156,797
Period of state income tax returns subject to examination, low end of range			3 years
Period of state income tax returns subject to examination, high end of range			5 years
Valuation allowance against net deferred tax assets	2,360,270		2,360,270		2,317,425
Reasonably possible amount of decrease in unrecognized tax positions over the next 12 months
Portion of unrecognized tax benefits which would impact the effective tax rate	$ 41,411		$ 41,411

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.