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Long-Term Incentive Awards (Details) - Performance based restricted stock units - USD ($)	3 Months Ended						9 Months Ended		12 Months Ended
	Jan. 29, 2022	Jul. 31, 2021	Jul. 30, 2021	Jan. 30, 2021	Jul. 31, 2020	Jul. 27, 2019	Jan. 29, 2022	Jan. 30, 2021	Apr. 30, 2021
Fiscal 2022 LTIP
Stock Based Compensation
Stock based compensation expense	$ 205,000			$ 0			$ 714,000	$ 0
Exercisable period from grant date			3 years
Fiscal 2022 LTIP | 100% Vested
Stock Based Compensation
Vesting (as a percentage)		100.00%
Fiscal 2022 LTIP | 50% Vested
Stock Based Compensation
Vesting (as a percentage)		50.00%
Fiscal 2022 LTIP | 250% Vested
Stock Based Compensation
Vesting (as a percentage)		250.00%
Fiscal 2022 LTIP | Maximum
Stock Based Compensation
Stock based compensation expense							12,704,000
Fiscal 2021 LTIP
Stock Based Compensation
Stock based compensation expense	(29,000)			126,000			(536,000)	564,000
Exercisable period from grant date					3 years
Fiscal 2021 LTIP | 100% Vested
Stock Based Compensation
Vesting (as a percentage)					100.00%
Fiscal 2021 LTIP | 50% Vested
Stock Based Compensation
Vesting (as a percentage)					50.00%
Fiscal 2021 LTIP | 250% Vested
Stock Based Compensation
Vesting (as a percentage)					250.00%
Fiscal 2021 LTIP | Maximum
Stock Based Compensation
Stock based compensation expense							6,931,000
Fiscal 2020 LTIP
Stock Based Compensation
Stock based compensation expense	(30,000)			(26,000,000)			(648,000)	319,000,000
Exercisable period from grant date						3 years
Fiscal 2020 LTIP | 100% Vested
Stock Based Compensation
Vesting (as a percentage)						100.00%
Fiscal 2020 LTIP | 50% Vested
Stock Based Compensation
Vesting (as a percentage)						50.00%
Fiscal 2020 LTIP | 200% Vested
Stock Based Compensation
Vesting (as a percentage)						200.00%
Fiscal 2020 LTIP | Maximum
Stock Based Compensation
Stock based compensation expense							3,758,000
Fiscal 2019 LTIP
Stock Based Compensation
Stock based compensation expense	$ 0			$ 27,000			$ 0	$ 291,000
Exercisable period from grant date									3 years
Issue of fully-vested shares of common stock to settle		12,101

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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