Shareholders' Equity - Summary of Stock Option Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 01, 2014
Equity [Abstract]
Number of Shares, Outstanding at February 2, 2013	1,529
Number of Shares, Granted	4
Number of Shares, Exercised	(496)
Number of Shares, Cancelled or forfeited	(180)
Number of Shares, Outstanding at February 1, 2014	857
Number of Shares, Exercisable stock options at February 1, 2014	368
Weighted-Average Exercise Price, Outstanding at February 02, 2013	$ 8.63
Weighted-Average Exercise Price, Granted	$ 14.40
Weighted-Average Exercise Price, Exercised	$ 9.16
Weighted-Average Exercise Price, Cancelled or forfeited	$ 14.11
Weighted-Average Exercise Price, Outstanding at February 01, 2014	$ 7.20
Weighted-Average Exercise Price, Exercisable stock options at February 01, 2014	$ 7.26
Weighted-Average Remaining Contractual Term, Outstanding at February 01, 2014	6 years 9 months 18 days
Weighted-Average Remaining Contractual Term, Exercisable stock options at February 01, 2014	5 years 3 months 18 days
Aggregate Intrinsic Value, Outstanding at February 01, 2014	$ 4,494
Aggregate Intrinsic Value, Exercisable stock options at February 01, 2014	$ 1,931