Debt, Summary of Interest Expense (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jan. 28, 2022 USD ($)	Jan. 28, 2022 USD ($) d	Jan. 29, 2021 USD ($)
Interest Expense [Abstract]
Amortization of issuance costs		$ 911	$ 0
0.625% Convertible Senior Notes Due 2026 [Member]
Interest Expense [Abstract]
Interest rate effective percentage	1.24%	1.24%
Coupon interest	$ 474	$ 948
Amortization of issuance costs	432	911
Total interest expense	$ 906	$ 1,859
Threshold percentage of stock price trigger		130.00%
Threshold trading days \| d		20
Threshold consecutive trading days \| d		30

Amount of amortization expense attributable to debt issuance costs.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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