Condensed Consolidated Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 29, 2021	Oct. 30, 2020
Recent Accounting Pronouncements Adopted [Abstract]
Reduction in deferred income taxes	$ 151	$ (54,142)
Accounting Standards Update 2020-06 [Member]
Recent Accounting Pronouncements Adopted [Abstract]
Increase in long-term debt	49,242
Reduction in deferred income taxes	(12,286)
Decrease in equity	(36,956)
Accounting Standards Update 2020-06 [Member] | Retained Earnings [Member]
Recent Accounting Pronouncements Adopted [Abstract]
Decrease in equity	$ (36,956)