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Income Taxes - Schedule of Valuation Allowance Rollforward (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2023
Sep. 30, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]    
Balance, beginning of year $ (83,827) $ (97,472)
Additions 0 0
Subtractions 5,633 13,645
Balance, end of year $ (78,194) $ (83,827)