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Schedule II-Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Oct. 02, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning of period $ 21,750    
End of period 21,483 $ 21,750  
Allowance for doubtful accounts [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning of period 0 687 $ 968
Charged to Costs and Expenses 49 (245) (248)
Other Additions 0 0 0
Other Deductions 0 (442) (33)
End of period 49 0 687
Inventory reserve [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning of period 19,238 23,042 31,163
Charged to Costs and Expenses 4,284 (2,171) (2,965)
Other Additions 0 0 0
Other Deductions (2,237) (1,633) (5,156)
End of period 21,285 19,238 23,042
Valuation allowance for deferred taxes [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning of period 21,750 34,095 46,561
Charged to Costs and Expenses 0 0 0
Other Additions 0 0 0
Other Deductions (267) (12,345) (12,466)
End of period $ 21,483 $ 21,750 $ 34,095