Unaudited Quarterly Financial Data (Details) (USD $) In Thousands, except 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 Data [Line Items]
Net sales	$ 124,776	$ 127,664	$ 137,249	$ 140,445	$ 161,654	$ 135,537	$ 135,261	$ 147,945	$ 530,134	$ 580,397	$ 620,097
Gross margin	23,406	28,949	40,652	42,231	40,051	26,045	30,802	43,603	135,238	140,501	195,436
Net income (loss)	$ (27,541)	$ (14,910)	$ 958	$ 3,110	$ (85,810)	$ (14,779)	$ (12,369)	$ (273)	$ (38,383)	$ (113,231)	$ 15,082
Net income (Loss) per share
Basic (in dollars per share)	$ (0.33)	$ (0.17)	$ 0.01	$ 0.04	$ (0.97)	$ (0.17)	$ (0.14)	$ 0.00	$ (0.45)	$ (1.28)	$ 0.16
Diluted (in dollars per share)	$ (0.33)	$ (0.17)	$ 0.01	$ 0.04	$ (0.97)	$ (0.17)	$ (0.14)	$ 0.00	$ (0.45)	$ (1.28)	$ 0.16
Weighted-average number of shares of common stock outstanding
Basic (in shares)	83,765,340	83,729,646	85,800,626	88,501,179	88,859,277	88,877,993	88,585,063	88,486,977	85,463,074	88,705,289	92,713,516
Diluted (in shares)	83,765,340	83,729,646	85,975,029	88,503,407	88,859,277	88,877,993	88,585,063	88,486,977	85,463,074	88,705,289	92,762,077
Common Stock Class A
Class A common stock market price data
High (in dollars per share)	$ 3.44	$ 4.47	$ 5.06	$ 3.39	$ 3.01	$ 3.29	$ 3.37	$ 3.69
Low (in dollars per share)	$ 2.36	$ 3.16	$ 3.45	$ 2.78	$ 2.66	$ 2.72	$ 2.66	$ 3.16