Severance Charges - Schedule of Severance Liabilities (Details) $ in Thousands	12 Months Ended
Sep. 30, 2023 USD ($)
Restructuring Reserve [Roll Forward]
Severance liability at September 24, 2022	$ 1,051
Severance charges	$ 6,388
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, general, and administrative expenses
Cash paid and other	$ (6,237)
Severance liability at September 30, 2023	$ 1,202

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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