Lease Termination and Impairment Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 27, 2011	Aug. 28, 2010	Aug. 27, 2011	Aug. 28, 2010
Lease termination and impairment charges
Lease termination and impairment charges	$ 15,118	$ 26,360	$ 32,208	$ 39,817
Revenues and operating losses of closed stores or stores approved for closure
Revenues	6,271,091	6,161,752	12,661,884	12,556,088
Loss before income taxes	(94,966)	(194,150)	(155,775)	(260,693)
Depreciation and amortization			225,802	254,013
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges	657	1,312	1,391	2,446
Number of stores	13	7	27	23
Total number of locations	13	7	27	23
Facility and equipment lease exit charges
Lease termination and impairment charges
Lease termination and impairment charges	14,461	25,048	30,817	37,371
Number of stores	8	12	11	20
Total number of locations	8	12	11	20
Closed store and distribution center charges
Balance-beginning of period	396,443	398,251	405,350	412,654
Provision for present value of noncancellable lease payments of closed stores	2,306	11,139	3,170	16,631
Changes in assumptions about future sublease income, terminations and changes in interest rates	5,859	7,509	15,222	8,366
Interest accretion	6,627	6,480	13,571	13,335
Cash payments, net of sublease income	(21,074)	(28,281)	(47,152)	(55,888)
Balance-end of period	390,161	395,098	390,161	395,098
Closed stores or stores approved for closure
Revenues and operating losses of closed stores or stores approved for closure
Revenues	21,213	60,921	49,294	139,305
Operating expenses	23,274	68,668	54,531	156,960
(Gain) loss from sales of assets	(530)	(3,432)	(5,791)	(4,508)
Other expenses	216	410	(275)	1,728
Loss before income taxes	(1,747)	(4,725)	829	(14,875)
Depreciation and amortization	193	768	465	1,736
Inventory liquidation charges	$ 90	$ 588	$ 486	$ 2,189

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Represents the total number of leased store and distribution center leases that have been closed or relocated during the period.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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