Reconciliation of Net Earnings and Number of Shares Used in Basic and Diluted Earnings Per Share Computations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Nov. 03, 2013	Oct. 28, 2012	Nov. 03, 2013	Oct. 28, 2012
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 56,719	$ 48,900	$ 145,104	$ 122,996
Net Earnings, Diluted	$ 56,719	$ 48,900	$ 145,104	$ 122,996
Weighted Average Shares, Basic	95,453	98,444	97,080	99,528
Weighted Average Shares, Effect of dilutive stock-based awards	2,410	1,974	1,995	1,757
Weighted Average Shares, Diluted	97,863	100,418	99,075	101,285
Earnings Per Share, Basic	$ 0.59	$ 0.50	$ 1.49	$ 1.24
Earnings Per Share, Diluted	$ 0.58	$ 0.49	$ 1.46	$ 1.21

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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