Goodwill and Intangible Assets - Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 29, 2017	Jan. 28, 2017
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 458	$ 458
Finite Lived, Accumulated Amortization	(459)	(442)
Finite Lived, Net Book Value	(1)	16
Goodwill, Gross Carrying Amount	175,605	173,690
Goodwill, Foreign Currency Translation	(13)	(87)
Goodwill, Net Book Value	175,592	173,603
Indefinite Lived, Gross Carrying Amount	100,663	100,624
Indefinite Lived, Net Book Value	100,663	100,624
Fair Market Write-Down, Gross Carrying Amount	(1,467)	(1,467)
Fair Market Write-Down, Accumulated Amortization	1,379	1,350
Fair Market Write-Down, Net Book Value	(88)	(117)
Trademarks and Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite Lived, Gross Carrying Amount	100,663	100,624
Indefinite Lived, Foreign Currency Translation		0
Indefinite Lived, Net Book Value	100,663	100,624
Fair Market Write-Up [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	1,925	1,925
Finite Lived, Accumulated Amortization	(1,838)	(1,792)
Finite Lived, Net Book Value	$ 87	$ 133