Summary of Stock Option Activity (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 03, 2014
Options
Outstanding - beginning of period	3,925
Granted	126
Exercised	(552)	[1]
canceled	(840)
Outstanding- end of period	2,659
Vested and expected to vest-end of period	2,647
Exercisable-end of period	81	[2]
Weighted-Average Exercise Price
Outstanding-beginning of period	$ 17.65
Granted	$ 14.50
Exercised	$ 12.33	[1]
Cancelled	$ 25.31
Outstanding-end of period	$ 16.18
Vested and expected to vest-end of period	$ 16.19
Exercisable-end of period	$ 8.09	[2]
Weighted-Average Remaining Contractual Term (In years)
Outstanding-end of period	2 years 4 months 24 days
Vested and expected to vest-end of period	2 years 4 months 24 days
Exercisable-end of period	1 year 1 month 6 days	[2]
Aggregate Intrinsic Value
Outstanding-end of period	$ 276
Vested and expected to vest-end of period	276
Exercisable-end of period	$ 276	[2]

[1] Options exercised during the 13 weeks ended May 3, 2014 had exercise prices ranging from $8.09 to $13.12.

[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 May 3, 2014.