Debt, Revolving Credit Facility (Details) - 2019 Revolving Credit Facility [Member] $ in Thousands	3 Months Ended
	Oct. 29, 2021 USD ($)	Jul. 30, 2021 USD ($)	Sep. 05, 2018 USD ($)
Line of Credit Facility [Abstract]
Line of credit facility, term	5 years
Maximum borrowing capacity			$ 950,000
Option to increase revolving credit facility			300,000
Outstanding borrowings	$ 85,000	$ 85,000
Amount of standby letters of credit	31,896
Remaining borrowing capacity	$ 683,104		$ 260,605
Weighted average interest rates	2.33%
Liquidity requirements	$ 100,000
Dividends threshold	$ 100,000
Leverage ratio, maximum	3.00
Multiplier used in calculating aggregate amount of cash dividends on shares of common stock in any fiscal year	4
Covid-19 [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity	$ 800,000