Equity Award Plans - Additional Information (Details) $ in Thousands	6 Months Ended
	Aug. 01, 2015 USD ($) Executives shares	Aug. 02, 2014 USD ($) shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of executive officers granted performance based RSU	4
Performance period	3 years
Repurchase of common stock, shares | shares	3,699	4,759
Payments for tax obligation to the tax authorities on exercise or vesting date | $	$ 57	$ 131