Note 16. Net Income (Loss) Per Share (Detail) - Basic and Diluted Net Income (Loss) per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Net income (loss), as reported (in Dollars)	$ (35,197)	$ (39,451)	$ (13,418)	$ (13,702)	$ (18,838)	$ (121,575)	$ (21,962)	$ (5,670)	$ (101,768)	$ (168,045)	$ 9,147
Weighted-average common shares outstanding- basic									33,205	32,036	31,245
Dilutive effect of employee stock plans											487
Weighted-average common shares outstanding- diluted									33,205	32,036	31,732
Net income (loss) per share- basic (in Dollars per share)									$ (3.06)	$ (5.25)	$ 0.29
Net income (loss) per share- diluted (in Dollars per share)									$ (3.06)	$ (5.25)	$ 0.29