Share Repurchases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015	Jan. 30, 2016
Equity, Class of Treasury Stock [Line Items]
Common stock share repurchased	0	2,625	0	2,625
Common stock share purchase price		$ 200		$ 200
Unpaid principal amount of notes payable for share repurchases	$ 19,523		$ 19,523		$ 19,523
Interest expense related to notes payable for share repurchases	$ 300	$ 300	$ 500	$ 500
Promissory Notes [Member]
Equity, Class of Treasury Stock [Line Items]
Debt instrument, stated interest percentage		3.00%		3.00%
Debt instrument, term		7 years		7 years