Information about Stock Options Outstanding and Exercisable (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 03, 2014	Feb. 01, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares	5,954	5,668
Options Outstanding, Weighted-Average Remaining Contractual Life	6 years 11 months 16 days
Options Outstanding, Weighted-Average Exercise Price	$ 25.63	$ 22.66
Options Exercisable, Number of Shares	4,037
Options Exercisable, Weighted-Average Exercise Price	$ 19.80
$9.85 to $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	1,526
Options Outstanding, Weighted-Average Remaining Contractual Life	5 years 4 months 17 days
Options Outstanding, Weighted-Average Exercise Price	$ 12.46
Options Exercisable, Number of Shares	1,526
Options Exercisable, Weighted-Average Exercise Price	$ 12.46
$18.01 to $23.92
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 18.01
Range of Exercise Prices, Upper Limit	$ 23.92
Options Outstanding, Number of Shares	1,546
Options Outstanding, Weighted-Average Remaining Contractual Life	5 years 8 months 8 days
Options Outstanding, Weighted-Average Exercise Price	$ 19.93
Options Exercisable, Number of Shares	1,542
Options Exercisable, Weighted-Average Exercise Price	$ 19.93
$24.04 to $34.24
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 24.04
Range of Exercise Prices, Upper Limit	$ 34.24
Options Outstanding, Number of Shares	2,083
Options Outstanding, Weighted-Average Remaining Contractual Life	7 years 11 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 32.22
Options Exercisable, Number of Shares	966
Options Exercisable, Weighted-Average Exercise Price	$ 31.12
$34.27 to $45.08
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 34.27
Range of Exercise Prices, Upper Limit	$ 45.08
Options Outstanding, Number of Shares	799
Options Outstanding, Weighted-Average Remaining Contractual Life	9 years 10 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 44.62
Options Exercisable, Number of Shares	3
Options Exercisable, Weighted-Average Exercise Price	$ 35.27