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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		6 Months Ended
	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 51,713	$ 52,917	$ 96,881	$ 92,472
Net Earnings, Diluted	$ 51,713	$ 52,917	$ 96,881	$ 92,472
Weighted Average Shares, Basic	82,342	86,429	82,867	86,696
Weighted Average Shares, Effect of dilutive stock-based awards	825	419	652	542
Weighted Average Shares, Diluted	83,167	86,848	83,519	87,238
Earnings Per Share, Basic	$ 0.63	$ 0.61	$ 1.17	$ 1.07
Earnings Per Share, Diluted	$ 0.62	$ 0.61	$ 1.16	$ 1.06

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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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