Lease Termination and Impairment Charges (Details) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 01, 2018 USD ($) store	Sep. 02, 2017 USD ($)	Sep. 01, 2018 USD ($) store	Sep. 02, 2017 USD ($)
Lease termination and impairment charges
Lease termination and impairment charges	$ 39,609	$ 3,113	$ 49,468	$ 7,151
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges	33,562		$ 33,845	659
Impairment charges \| Retail Pharmacy \| Active stores
Lease termination and impairment charges
Lease termination and impairment charges	$ 19,277
Numbers of stores \| store	288		288
Impairment charges \| Retail Pharmacy \| Closed facilities
Lease termination and impairment charges
Lease termination and impairment charges	$ 14,285
Lease termination charges
Lease termination and impairment charges
Lease termination and impairment charges	6,047	3,113	$ 15,623	6,492
Closed store and distribution center charges
Balance-beginning of period	131,182	155,666	133,290	165,138
Provision for present value of noncancellable lease payments of closed stores	3,201		11,331	913
Changes in assumptions about future sublease income, terminations and changes in interest rates	324	201	(714)	(348)
Interest accretion	2,556	2,907	5,241	6,002
Cash payments, net of sublease income	(15,075)	(14,763)	(26,960)	(27,694)
Balance-end of period	$ 122,188	$ 144,011	$ 122,188	$ 144,011

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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