Summary of Stock Option Activity (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 02, 2013
Options
Outstanding - beginning	11,197
Granted	1,666
Exercised	(6,666)	[1]
Cancelled	(1,568)
Outstanding- Ending	4,629
Vested and expected to vest-ending	4,552
Exercisable-ending	2,733	[2]
Weighted-Average Exercise Price
Outstanding-beginning	$ 15.31
Granted	$ 14.35
Exercised	$ 11.42	[1]
Cancelled	$ 22.34
Outstanding-ending	$ 16.29
Vested and expected to vest-ending	$ 16.33
Exercisable-ending	$ 14.92	[2]
Weighted-Average Remaining Contractual Term (In years)
Outstanding-ending	3 years 3 months 18 days
Vested and expected to vest-ending	3 years 3 months 18 days
Exercisable-ending	2 years 10 months 24 days	[2]
Aggregate Intrinsic Value
Outstanding-ending	$ 23,102
Vested and expected to vest-ending	22,618
Exercisable-ending	$ 14,962	[2]

[1] Options exercised during Fiscal 2012 ranged in price from $4.24 to $22.46.

[2] Options exercisable represent "in-the-money" vested options based upon the weighted average exercise price of vested options compared to the Company's stock price at February 2, 2013.