Quarterly Financial Data - Schedule of Quarterly Financial Data (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Jan. 31, 2015	Nov. 01, 2014	Aug. 02, 2014	May 03, 2014	Feb. 01, 2014	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 231,593us-gaap_SalesRevenueNet	$ 212,292us-gaap_SalesRevenueNet	$ 211,749us-gaap_SalesRevenueNet	$ 171,143us-gaap_SalesRevenueNet	$ 218,591us-gaap_SalesRevenueNet	$ 202,795us-gaap_SalesRevenueNet	$ 210,054us-gaap_SalesRevenueNet	$ 166,352us-gaap_SalesRevenueNet	$ 826,777us-gaap_SalesRevenueNet	$ 797,792us-gaap_SalesRevenueNet	$ 784,745us-gaap_SalesRevenueNet
Gross margin	60,348us-gaap_GrossProfit	56,683us-gaap_GrossProfit	61,539us-gaap_GrossProfit	44,663us-gaap_GrossProfit	43,704us-gaap_GrossProfit	51,173us-gaap_GrossProfit	62,586us-gaap_GrossProfit	41,781us-gaap_GrossProfit	223,233us-gaap_GrossProfit	199,244us-gaap_GrossProfit	196,346us-gaap_GrossProfit
(Loss) income from continuing operations	(25,990)	(469)	7,501	(10,397)	(22,033)	17,715	(18,604)	(24,054)	(29,355)	(46,976)	(52,582)
Loss from discontinued operations, net of tax effects					(504)	(473)	(641)	(127)	0	(1,745)	508
Net loss	$ (25,990)us-gaap_NetIncomeLoss	$ (469)us-gaap_NetIncomeLoss	$ 7,501us-gaap_NetIncomeLoss	$ (10,397)us-gaap_NetIncomeLoss	$ (22,537)us-gaap_NetIncomeLoss	$ 17,242us-gaap_NetIncomeLoss	$ (19,245)us-gaap_NetIncomeLoss	$ (24,181)us-gaap_NetIncomeLoss	$ (29,355)us-gaap_NetIncomeLoss	$ (48,721)us-gaap_NetIncomeLoss	$ (52,074)us-gaap_NetIncomeLoss
(Loss) income per share from continuing operations:
Basic (in dollars per share)	$ (0.38)	$ (0.01)	$ 0.11	$ (0.15)	$ (0.32)	$ 0.26	$ (0.27)	$ (0.35)
Diluted (in dollars per share)	$ (0.38)	$ (0.01)	$ 0.10	$ (0.15)	$ (0.32)	$ 0.24	$ (0.27)	$ (0.35)
Loss per share from discontinued operations:
Basic (in dollars per share)					$ (0.01)	$ (0.01)	$ (0.01)	$ 0.00
Diluted (in dollars per share)					$ (0.01)	$ (0.01)	$ (0.01)	$ 0.00
Net (loss) income per share:
Basic (in dollars per share)	$ (0.38)us-gaap_EarningsPerShareBasic	$ (0.01)us-gaap_EarningsPerShareBasic	$ 0.11us-gaap_EarningsPerShareBasic	$ (0.15)us-gaap_EarningsPerShareBasic	$ (0.33)us-gaap_EarningsPerShareBasic	$ 0.25us-gaap_EarningsPerShareBasic	$ (0.28)us-gaap_EarningsPerShareBasic	$ (0.35)us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ (0.38)us-gaap_EarningsPerShareDiluted	$ (0.01)us-gaap_EarningsPerShareDiluted	$ 0.10us-gaap_EarningsPerShareDiluted	$ (0.15)us-gaap_EarningsPerShareDiluted	$ (0.33)us-gaap_EarningsPerShareDiluted	$ 0.23us-gaap_EarningsPerShareDiluted	$ (0.28)us-gaap_EarningsPerShareDiluted	$ (0.35)us-gaap_EarningsPerShareDiluted
Weighted-average shares outstanding:
Basic (in shares)	69,261	69,235	69,070	68,750	68,586	68,568	68,464	68,242
Diluted (in shares)	69,261	69,235	73,197	68,750	68,586	75,515	68,464	68,242

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