Debt, Summary of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Oct. 29, 2021	Oct. 30, 2020
Interest Expense [Abstract]
Amortization of issuance costs	$ 479	$ 0
0.625% Convertible Senior Notes Due 2026 [Member]
Interest Expense [Abstract]
Interest rate effective percentage	1.24%
Coupon interest	$ 474
Amortization of issuance costs	479
Total interest expense	$ 953

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration