Benefit Plans (Detail) - Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Number of Shares Subject To option, Balance (in Shares)	4,663,909	6,126,851	6,687,058	7,109,675
Weighted Average Exercise Price, Balance	$ 6.45	$ 6.28	$ 6.80	$ 7.91
Other Share Awards, Balance (in Shares)	93,037	362,444	192,822	660,065
Weighted Average Grant Date Value, Balance	$ 6.04	$ 2.71	$ 4.19	$ 2.34
Number of Shares Subject To option, Granted (in Shares)	305,000	310,000	1,000,000
Weighted Average Exercise Price, Granted	$ 2.76	$ 2.02	$ 2.07
Other Share Awards, Granted (in Shares)	10,491	279,898	279,898
Weighted Average Grant Date Value, Granted	$ 3.53	$ 1.63	$ 2.22
Number of Shares Subject To option, Exercised (in Shares)	(174,250)
Weighted Average Grant Date Value, Exercised	$ 3.31
Other Share Awards, Exercised (in Shares)	(279,898)	(110,276)	(109,364)
Weighted Average Grant Date Value, Exercised	$ 1.63	$ 2.57	$ 3.03
Number of Shares Subject To option, Forfeited (in Shares)	(703,750)	(12,925)	(107,000)
Weighted Average Exercise Price, Forfeited	$ 2.15	$ 2.99	$ 5.51
Other Share Awards, Forfeited (in Shares)			(357,879)
Weighted Average Grant Date Value, Forfeited	$ 0.00	$ 0.00	$ 2.18
Number of Shares Subject To option, Canceled (in Shares)	(889,942)	(857,282)	(1,315,617)
Weighted Average Grant Date Value, Canceled	$ 8.03	$ 8.82	$ 9.32
Other Share Awards, Canceled (in Shares)			(279,898)
Weighted Average Grant Date Value, Canceled	$ 0.00	$ 0.00	$ 1.53
Minimum [Member]
Stock Award Exercise Price Range Per Share, Balance, per share	$ 0.98	$ 0.98	$ 0.98	$ 0.98
Stock Award Exercise Price Range Per Share, Granted	$ 2.53	$ 1.73	$ 1.67
Stock Award Exercise Price Range Per Share, Exercised	$ 0.98
Stock Award Exercise Price Range Per Share, Forfeited	$ 0.98	$ 1.16	$ 5.32
Stock Award Exercise Price Range Per Share, Canceled	$ 3.50	$ 3.50	$ 3.50
Maximum [Member]
Stock Award Exercise Price Range Per Share, Balance, per share	$ 14.32	$ 14.32	$ 14.32	$ 14.32
Stock Award Exercise Price Range Per Share, Granted	$ 3.05	$ 2.31	$ 2.11
Stock Award Exercise Price Range Per Share, Exercised	$ 3.50
Stock Award Exercise Price Range Per Share, Forfeited	$ 2.31	$ 5.50	$ 6.43
Stock Award Exercise Price Range Per Share, Canceled	$ 14.32	$ 14.32	$ 14.32