Lease Termination and Impairment Charges (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 04, 2017 USD ($) store location facility	Nov. 26, 2016 USD ($)	Aug. 27, 2016 USD ($)	May 28, 2016 USD ($)	Feb. 27, 2016 USD ($) store location facility	Nov. 28, 2015 USD ($)	Aug. 29, 2015 USD ($)	May 30, 2015 USD ($)	Mar. 04, 2017 USD ($) store location facility	Feb. 27, 2016 USD ($) store location facility	Feb. 28, 2015 USD ($) store location facility
Lease termination and impairment charges
Lease termination and impairment charges	$ 35,015	$ 7,265	$ 7,233	$ 5,781	$ 26,753	$ 7,011	$ 9,637	$ 5,022	$ 55,294	$ 48,423	$ 41,945
Number of stores | store	4,536								4,536
Revenues and operating losses of closed stores or stores approved for closure
Revenue, Net	$ 8,541,360	8,089,726	8,029,806	8,184,181	8,270,136	8,154,184	7,664,776	6,647,561	$ 32,845,073	30,736,657	26,528,377
Loss before income taxes	$ 26,718	$ 6,923	$ 25,701	(10,897)	$ 101,184	$ 108,011	$ 37,932	31,277	48,445	278,404	426,820
Depreciation and amortization									$ 568,231	509,212	416,628
Active stores
Lease termination and impairment charges
Number of stores | store	4,536								4,536
Long-lived assets	$ 2,015,000								$ 2,015,000
Impairment charges
Lease termination and impairment charges
Lease termination and impairment charges									$ 32,147	$ 17,219	$ 14,438
Total number of locations | location	553				416				553	416	429
Impairment charges | Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 30,109	$ 16,106	$ 12,126
Number of stores | store	500				389				500	389	394
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									$ 2,038	$ 1,113	$ 2,312
Number of facilities | facility	53				27				53	27	35
Lease termination charges									$ 2,038	$ 1,113	$ 2,312
Additional current period charges for stores previously impaired in prior periods | Active stores
Lease termination and impairment charges
Lease termination and impairment charges									$ 9,426	$ 9,183	$ 6,949
Number of stores | store	428				357				428	357	376
Number of stores fully impaired | store									424	351	369
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									$ 13,232	$ 1,649	$ 1,108
Number of stores | store	22				3				22	3	2
Number of stores fully impaired | store									18	3	1
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									$ 7,451	$ 5,274	$ 4,069
Number of stores | store	50				29				50	29	16
Number of stores fully impaired | store									48	27	14
Lease termination charges
Lease termination and impairment charges
Number of stores | store	17				23				17	23	10
Lease termination charges									$ 23,147	$ 31,204	$ 27,507
Closed store and distribution center charges
Balance-beginning of period				$ 208,421				$ 241,047	208,421	241,047	284,270
Provision for present value of noncancellable lease payments of closed stores									6,503	9,709	1,661
Changes in assumptions about future sublease income, terminations and changes in interest rates									2,633	5,655	7,560
Interest accretion									14,186	16,463	18,988
Cash payments, net of sublease income									(66,605)	(64,453)	(71,432)
Balance-end of period	$ 165,138				$ 208,421				165,138	208,421	241,047
Closed stores or stores approved for closure
Revenues and operating losses of closed stores or stores approved for closure
Revenue, Net									132,790	143,339	193,757
Operating expenses									151,978	159,967	212,753
Gain from sale of assets									(1,364)	(5,607)	(5,529)
Other expenses									2,544	1,676	2,889
Loss before income taxes									(20,368)	(12,697)	(16,356)
Depreciation and amortization									1,166	1,162	1,650
Inventory liquidation charges									$ 346	$ 295	$ 222
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