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Net Income Per Share and Weighted Average Shares (Details) - USD ($)
$ in Thousands
3 Months Ended
Nov. 01, 2019
Nov. 02, 2018
Net Income Per Share and Weighted Average Shares [Abstract]    
Net income per share numerator $ 43,223 $ 47,207
Net income per share denominator [Abstract]    
Weighted average shares (in shares) 24,038,354 24,022,586
Add potential dilution [Abstract]    
Nonvested stock awards and units (in shares) 65,568 51,136
Diluted weighted average shares (in shares) 24,103,922 24,073,722