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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 01, 2013	Jun. 02, 2012	Mar. 02, 2013
Income Taxes
Income tax expense (benefit)	$ 3,212	$ (61,729)
Adjustments to valuation allowance	36,889	27,787
Recoverable indemnification asset from Jean Coutu Group	31,323		30,710
Portion of unrecognized tax benefits which would impact the effective tax rate		31,414
Valuation allowance against net deferred tax assets	$ 2,186,785		$ 2,223,675

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.

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.