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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
	May 05, 2019	Apr. 29, 2018
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 52,656	$ 45,168
Net Earnings, Diluted	$ 52,656	$ 45,168
Weighted Average Shares, Basic	78,683	83,392
Weighted Average Shares, Effect of dilutive stock-based awards	1,184	782
Weighted Average Shares, Diluted	79,867	84,174
Earnings Per Share, Basic	$ 0.67	$ 0.54
Earnings Per Share, Diluted	$ 0.66	$ 0.54

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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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