Goodwill and Intangible Assets - Goodwill and Intangible Assets (Parenthetical) (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 29, 2017	Jan. 28, 2017
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 175,592	$ 173,603
Design Investors WW Acquisition Company, LLC [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill increased due to purchase price accounting adjustments	1,916
Goodwill	51,145	49,229
Trademarks	$ 52,100	$ 52,100