Discontinued Operations - Components of Loss from Discontinued Operations (Details) - Discontinued Operations - Operation of UK Business - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jan. 27, 2024	Jan. 28, 2023	Jan. 27, 2024	Jan. 28, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue, net	$ 824	$ 11,496	$ 9,382	$ 23,348
Cost of goods sold	784	6,134	7,274	13,535
Gross profit	40	5,362	2,108	9,813
Selling, general, and administrative expenses	1,500	8,789	11,635	19,834
Operating loss	(1,460)	(3,427)	(9,527)	(10,021)
Interest income	0	72	187	98
Other income (expense), net	560	1,315	(583)	207
Loss before income taxes	(900)	(2,040)	(9,923)	(9,716)
Provision (benefit) for income taxes	(332)	87	(36)	177
Loss from discontinued operations, net of income taxes	$ (568)	$ (2,127)	$ (9,887)	$ (9,893)

Disposal Group, Including Discontinued Operation, Other Income (Expense)

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Disposal Group, Including Discontinued Operation, Selling, General and Administrative Expense

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of interest income attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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