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Quarterly Financial Information (Unaudited) - Summarized Quarterly Financial Results (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 01, 2014	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Quarterly Financial Information Disclosure [Abstract]
Total revenue	$ 156,073	$ 106,134	$ 97,123	$ 101,233	$ 162,885	$ 96,688	$ 91,004	$ 97,788	$ 460,563	$ 448,365	$ 430,285
Gross profit	64,632	41,135	35,643	39,406	66,134	34,019	29,994	38,469	180,816	168,616	169,194
Operating income (loss)	20,536	1,694	(1,074)	2,836	23,056	(746)	(3,952)	3,170	23,992	21,528	30,505
Net income (loss)	$ 12,326	$ 1,008	$ (577)	$ 1,773	$ 14,253	$ (416)	$ (1,997)	$ 1,955	$ 14,530	$ 13,795	$ 19,115
Earnings (loss) per share:
Basic	$ 0.71	$ 0.06	$ (0.03)	$ 0.10	$ 0.83	$ (0.02)	$ (0.11)	$ 0.11	$ 0.84	$ 0.79	$ 0.97
Diluted	$ 0.69	$ 0.06	$ (0.03)	$ 0.10	$ 0.82	$ (0.02)	$ (0.11)	$ 0.10	$ 0.82	$ 0.77	$ 0.95

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