Net Income Per Share and Weighted Average Shares (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 29, 2021	Oct. 30, 2020
Net Income Per Share and Weighted Average Shares [Abstract]
Net income per share numerator	$ 33,376	$ 170,680
Net income per share denominator [Abstract]
Weighted average shares (in shares)	23,507,361	23,707,750
Add potential dilution [Abstract]
Nonvested stock awards and units (in shares)	86,521	63,480
Diluted weighted average shares (in shares)	23,593,882	23,771,230