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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
	Aug. 02, 2015	Aug. 03, 2014	Aug. 02, 2015	Aug. 03, 2014
Earnings Per Share [Line Items]
Net Earnings, Basic	$ 53,668	$ 50,747	$ 98,458	$ 96,909
Net Earnings, Diluted	$ 53,668	$ 50,747	$ 98,458	$ 96,909
Weighted Average Shares, Basic	91,243	93,979	91,475	94,010
Weighted Average Shares, Effect of dilutive stock-based awards	1,321	1,860	1,494	1,704
Weighted Average Shares, Diluted	92,564	95,839	92,969	95,714
Earnings Per Share, Basic	$ 0.59	$ 0.54	$ 1.08	$ 1.03
Earnings Per Share, Diluted	$ 0.58	$ 0.53	$ 1.06	$ 1.01

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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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