Goodwill and Intangible Assets - Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Aug. 01, 2015	Jan. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 657	$ 1,723
Finite Lived, Accumulated Amortization	(420)	(1,372)
Finite Lived, Foreign Currency Translation	0	0
Finite Lived, Net Book Value	237	351
Goodwill, Gross Carrying Amount	124,461	124,461
Goodwill, Foreign Currency Translation	(72)	(37)
Goodwill, Net Book Value	124,389	124,424
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount		80
Finite Lived, Accumulated Amortization		(80)
Finite Lived, Foreign Currency Translation		0
Fair Market Write-Up [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	2,124	3,110
Finite Lived, Accumulated Amortization	(1,631)	(2,419)
Finite Lived, Foreign Currency Translation	0	0
Finite Lived, Net Book Value	493	691
Fair Market Write-Down [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	(1,467)	(1,467)
Finite Lived, Accumulated Amortization	1,211	1,127
Finite Lived, Foreign Currency Translation	0	0
Finite Lived, Net Book Value	(256)	(340)
Trademarks and Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite Lived, Gross Carrying Amount	48,037	47,863
Indefinite Lived, Foreign Currency Translation	0	0
Indefinite Lived, Net Book Value	$ 48,037	$ 47,863