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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, 2020
Aug. 04, 2019
Aug. 02, 2020
Aug. 04, 2019
Earnings Per Share [Line Items]        
Net Earnings, Basic $ 134,564 $ 62,648 $ 169,987 $ 115,304
Net Earnings, Diluted $ 134,564 $ 62,648 $ 169,987 $ 115,304
Weighted Average Shares, Basic 77,783 78,488 77,522 78,586
Weighted Average Shares, Effect of dilutive stock-based awards 1,481 982 1,319 1,047
Weighted Average Shares, Diluted 79,264 79,470 78,841 79,633
Earnings Per Share, Basic $ 1.73 $ 0.80 $ 2.19 $ 1.47
Earnings Per Share, Diluted $ 1.70 $ 0.79 $ 2.16 $ 1.45