Information about Stock Options Outstanding and Exercisable (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Nov. 02, 2013	Feb. 02, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 9.85
Range of Exercise Prices, Upper Limit	$ 36.59
Options Outstanding, Number of Shares	6,038	5,907
Options Outstanding, Weighted-Average Remaining Contractual Life	6 years 7 months 2 days
Options Outstanding, Weighted-Average Exercise Price	$ 22.70	$ 19.93
Options Exercisable, Number of Shares	3,857
Options Exercisable, Weighted-Average Exercise Price	$ 18.51
$9.85 - $15.10
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 9.85
Range of Exercise Prices, Upper Limit	$ 15.10
Options Outstanding, Number of Shares	1,756
Options Outstanding, Weighted-Average Remaining Contractual Life	5 years 10 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 12.60
Options Exercisable, Number of Shares	1,756
Options Exercisable, Weighted-Average Exercise Price	$ 12.60
$15.74 - $ 23.42
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 15.74
Range of Exercise Prices, Upper Limit	$ 23.42
Options Outstanding, Number of Shares	1,603
Options Outstanding, Weighted-Average Remaining Contractual Life	6 years 4 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 19.71
Options Exercisable, Number of Shares	1,156
Options Exercisable, Weighted-Average Exercise Price	$ 20.04
$23.63 - $ 30.92
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 23.63
Range of Exercise Prices, Upper Limit	$ 30.92
Options Outstanding, Number of Shares	1,540
Options Outstanding, Weighted-Average Remaining Contractual Life	5 years 7 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 28.77
Options Exercisable, Number of Shares	937
Options Exercisable, Weighted-Average Exercise Price	$ 27.55
$31.79 - $35.50
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 31.79
Range of Exercise Prices, Upper Limit	$ 36.59
Options Outstanding, Number of Shares	1,139
Options Outstanding, Weighted-Average Remaining Contractual Life	9 years 4 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 34.26
Options Exercisable, Number of Shares	8
Options Exercisable, Weighted-Average Exercise Price	$ 34.17