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Goodwill and Intangible Assets - Goodwill and Intangible Assets (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Finite-Lived Intangible Assets [Line Items]    
Finite Lived, Gross Carrying Amount $ 458 $ 457
Finite Lived, Accumulated Amortization (442) (408)
Finite Lived, Net Book Value 16 49
Goodwill, Gross Carrying Amount 173,690 124,461
Goodwill, Foreign Currency Translation (87) (160)
Goodwill, Net Book Value 173,603 124,301
Indefinite Lived, Gross Carrying Amount 100,624 48,309
Indefinite Lived, Net Book Value 100,624 48,309
Fair Market Write-Down, Gross Carrying Amount (1,467) (1,467)
Fair Market Write-Down, Accumulated Amortization 1,350 1,289
Fair Market Write-Down, Net Book Value (117) (178)
Trademarks and Domain Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Indefinite Lived, Gross Carrying Amount 100,624 48,309
Indefinite Lived, Foreign Currency Translation   0
Indefinite Lived, Net Book Value 100,624 48,309
Fair Market Write-Up [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite Lived, Gross Carrying Amount 1,925 1,924
Finite Lived, Accumulated Amortization (1,792) (1,697)
Finite Lived, Net Book Value $ 133 $ 227