Lease Termination and Impairment Charges (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	9 Months Ended
Nov. 30, 2013 store	Nov. 29, 2014	Nov. 30, 2013	Nov. 29, 2014	Nov. 30, 2013
Lease termination and impairment charges
Number of stores for which lease rights were sold	1
Gain from lease termination	$ 8,750us-gaap_GainLossOnContractTermination				$ 8,750us-gaap_GainLossOnContractTermination
Lease termination and impairment charges		8,702us-gaap_TangibleAssetImpairmentCharges	1,672us-gaap_TangibleAssetImpairmentCharges	20,661us-gaap_TangibleAssetImpairmentCharges	24,034us-gaap_TangibleAssetImpairmentCharges
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges		1,050	335	1,333	5,201
Lease termination charges
Lease termination and impairment charges
Lease termination and impairment charges		7,652	1,337	19,328	18,833
Closed store and distribution center charges
Balance-beginning of period		261,130	303,637	284,270	323,758
Provision for present value of noncancellable lease payments of closed stores		569	4,522	1,005	10,896
Changes in assumptions about future sublease income, terminations and changes in interest rates		2,418	(8,112)	3,835	(7,899)
Interest accretion		4,665	5,225	14,492	16,133
Cash payments, net of sublease income		(17,431)	(10,127)	(52,251)	(47,743)
Balance-end of period	$ 295,145	$ 251,351	$ 295,145	$ 251,351	$ 295,145

Represents the number of stores for which lease rights were sold during the reporting period.

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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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Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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