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Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	May 01, 2026	May 02, 2025	Aug. 01, 2025	Jun. 13, 2025	Jun. 18, 2021
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Impairment charges	$ 418	$ 3,581
0.625% Convertible Senior Notes Due 2026
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Interest rate	0.625%				0.625%
1.75% Convertible Senior Notes Due 2030
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Interest rate	1.75%			1.75%
Level 2 \| Estimated Fair Value \| 0.625% Convertible Senior Notes Due 2026
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Short Term fair value of notes	$ 148,688		$ 144,075
Level 2 \| Estimated Fair Value \| 1.75% Convertible Senior Notes Due 2030
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Long Term fair value of notes	280,150		374,246
Recurring \| Estimated Fair Value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Liabilities at fair value	$ 0		$ 0