Lease Termination and Impairment Charges (Details) - USD ($) $ in Thousands	3 Months Ended
May. 30, 2015	May. 31, 2014
Lease termination and impairment charges
Lease termination and impairment charges	$ 5,022	$ 4,848
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges	273	151
Lease termination charges
Lease termination and impairment charges
Lease termination and impairment charges	4,749	4,697
Closed store and distribution center charges
Balance-beginning of period	241,047	284,270
Provision for present value of noncancellable lease payments of closed stores	1,546	142
Changes in assumptions about future sublease income, terminations and changes in interest rates	(571)	(427)
Interest accretion	4,303	4,982
Cash payments, net of sublease income	(15,522)	(18,645)
Balance-end of period	$ 230,803	$ 270,322

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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