Lease Termination and Impairment Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 31, 2013	Sep. 01, 2012	Aug. 31, 2013	Sep. 01, 2012
Lease termination and impairment charges
Lease termination and impairment charges	$ 11,390	$ 7,783	$ 22,362	$ 19,926
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges	265	47	4,866	543
Lease termination charges
Lease termination and impairment charges
Lease termination and impairment charges	11,125	7,736	17,496	19,383
Closed store and distribution center charges
Balance-beginning of period	312,011	358,583	323,758	367,864
Provision for present value of noncancellable lease payments of closed stores	5,981	678	6,374	4,252
Changes in assumptions about future sublease income, terminations and changes in interest rates	(308)	1,269	213	3,326
Interest accretion	5,452	5,871	10,909	11,927
Cash payments, net of sublease income	(19,499)	(21,130)	(37,617)	(42,098)
Balance-end of period	$ 303,637	$ 345,271	$ 303,637	$ 345,271

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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