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Lease Termination and Impairment Charges (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 02, 2019 USD ($) facility location store	Dec. 01, 2018 USD ($)	Sep. 01, 2018 USD ($)	Jun. 02, 2018 USD ($)	Mar. 03, 2018 USD ($) facility location store	Dec. 02, 2017 USD ($)	Sep. 02, 2017 USD ($)	Jun. 03, 2017 USD ($)	Mar. 02, 2019 USD ($) facility location store	Mar. 03, 2018 USD ($) facility location store	Mar. 04, 2017 USD ($) facility location store
Lease termination and impairment charges
Lease termination and impairment charges	$ 55,898	$ 2,628	$ 39,609	$ 9,859	$ 47,675	$ 3,939	$ 3,113	$ 4,038	$ 107,994	$ 58,765	$ 45,778
Number of stores \| store	2,469								2,469
Revenues and operating losses of closed stores or stores approved for closure
Revenues	$ 5,379,645	5,450,060	5,421,362	5,388,490	5,394,264	5,353,170	5,345,011	5,436,523	$ 21,639,557	21,528,968	22,927,540
Income (loss) before income taxes	$ (60,625)	$ (18,721)	$ (458,907)	(51,224)	$ (266,954)	$ (34,243)	$ 305,810	(48,158)	(589,477)	(43,545)	48,518
Depreciation and amortization									$ 357,882	386,057	407,366
Active stores
Lease termination and impairment charges
Number of stores \| store	2,469								2,469
Long-Lived Assets	$ 1,093,000								$ 1,093,000
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges									$ 63,492	$ 37,873	$ 22,631
Number of stores \| location	446				373				446	373	266
Impairment charges \| Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 46,419	$ 34,782	$ 20,623
Number of stores \| store	384				306				384	306	213
Period considered for recording impairment charges on the basis of operating loss									2 years
Impairment charges \| Closed facilities
Lease termination and impairment charges
Lease termination and impairment charges									$ 2,788	$ 3,091	$ 2,008
Number of stores \| facility	62				67				62	67	53
Lease termination charges									$ 2,788	$ 3,091	$ 2,008
Impairment charges \| Other
Lease termination and impairment charges
Lease termination and impairment charges									14,285
Additional current period charges for stores previously impaired in prior periods \| Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 17,939	$ 7,313	$ 5,022
Number of stores \| store	288				218				288	218	174
Number of stores fully impaired \| store									286	215	173
Charges for new, relocated and remodeled stores that did not meet their asset recoverability test in the current period \| Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 10,595	$ 13,100	$ 13,232
Number of stores \| store	22				28				22	28	22
Number of stores fully impaired \| store									21	23	18
Period considered for impairment of relocated stores									2 years
Charges for the remaining stores that did not meet their asset recoverability test in the current period \| Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 17,885	$ 14,369	$ 2,369
Number of stores \| store	74				60				74	60	17
Number of stores fully impaired \| store									72	58	16
Lease termination charges
Lease termination and impairment charges
Number of stores \| store	61				11				61	11	17
Lease termination charges									$ 44,502	$ 20,892	$ 23,147
Closed store and distribution center charges
Balance-beginning of period				$ 133,290				$ 165,138	133,290	165,138	208,421
Provision for present value of noncancellable lease payments of closed stores									35,190	8,871	6,503
Changes in assumptions about future sublease income, terminations and changes in interest rates									737	1,082	2,633
Interest accretion									9,741	11,439	14,186
Cash payments, net of sublease income									(54,912)	(53,240)	(66,605)
Balance-end of period	$ 124,046				$ 133,290				124,046	133,290	165,138
Closed stores or stores approved for closure
Revenues and operating losses of closed stores or stores approved for closure
Revenues									165,598	308,005	433,709
Operating expenses									182,201	342,103	471,971
Gain from sale of assets									(38,113)	(18,222)	(1,036)
Other expenses									2,183	2,417	4,590
Income (loss) before income taxes									19,327	(18,293)	(41,816)
Depreciation and amortization									621	1,742	3,560
Inventory liquidation charges									$ (5,523)	(2,828)	$ (187)
Minimum \| Charges for new, relocated and remodeled stores that did not meet their asset recoverability test in the current period \| Active stores
Lease termination and impairment charges
Period considered for recording impairment charges on the basis of operating loss									2 years
Period considered for impairment of new stores									3 years
Minimum \| Charges for the remaining stores that did not meet their asset recoverability test in the current period \| Active stores
Lease termination and impairment charges
Period considered for recording impairment charges on the basis of operating loss									2 years
Nonrecurring basis
Lease termination and impairment charges
Lease termination and impairment charges									$ 63,492	$ 37,873