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Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Sep. 25, 2021
Receivables [Abstract]  
Schedule of Allowance for Credit Losses and Customer Allowances The following provides a reconciliation of the activity in the Allowance for Credit Losses and Customer Allowances:
DescriptionBalances at
Beginning
of Period		Charged/
(Credited)  to
Costs and
Expenses		Asset
Write-Offs,
Less
Recoveries		Reclassification of Product Return ReserveBalances at
End of
Period
(in thousands)
Fiscal Year Ended September 28, 201924,125 6,906 (3,438)(6,465)21,128 
Fiscal Year Ended September 26, 202021,128 6,771 (238)— 27,661 
Fiscal Year Ended September 25, 202127,661 6,604 (5,046)— 29,219