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Reconciliation of Net Earnings and Number of Shares Used in Basic and Diluted Earnings Per Share Computations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2017	May 01, 2016
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 39,555	$ 39,597
Net Earnings, Diluted	$ 39,555	$ 39,597
Weighted Average Shares, Basic	86,962	89,298
Weighted Average Shares, Effect of dilutive stock-based awards	748	1,216
Weighted Average Shares, Diluted	87,710	90,514
Earnings Per Share, Basic	$ 0.45	$ 0.44
Earnings Per Share, Diluted	$ 0.45	$ 0.44

X

- Definition

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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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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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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Earnings Per Share [Line Items]

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