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. 02, 2014	Nov. 03, 2013	Nov. 02, 2014	Nov. 03, 2013
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 64,908	$ 56,719	$ 161,817	$ 145,104
Net Earnings, Diluted	$ 64,908	$ 56,719	$ 161,817	$ 145,104
Weighted Average Shares, Basic	93,067	95,453	93,862	97,080
Weighted Average Shares, Effect of dilutive stock-based awards	1,853	2,410	1,741	1,995
Weighted Average Shares, Diluted	94,920	97,863	95,603	99,075
Earnings Per Share, Basic	$ 0.70	$ 0.59	$ 1.72	$ 1.49
Earnings Per Share, Diluted	$ 0.68	$ 0.58	$ 1.69	$ 1.46

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 after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the 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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