Impairment Charges and Store Closing Costs - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 25, 2017	Nov. 26, 2016	Aug. 27, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Feb. 25, 2017	Feb. 27, 2016	Feb. 28, 2015
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs	$ 13,129	$ 0	$ 182	$ 0	$ 43,142	$ 167	$ 160	$ 168	$ 13,312	$ 43,637	$ 2,030
Store closing costs									800	800	1,000
Long Lived Assets
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs									11,500	8,400	500
Fixtures And Equipment For Store Closing
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs									$ 1,000	1,100
Technology And Development
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs										$ 33,300
Website
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs											200
Furniture and Fixtures
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges and store closing costs											$ 300