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Balance Sheet Components - Product Warranties (Details) - USD ($)
$ in Thousands
9 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]    
Warranty liability, beginning of period $ 3,628 $ 3,254
Provision for warranties issued during the period 12,218 9,609
Settlements of warranty claims during the period (10,613) (9,657)
Warranty liability, end of period $ 5,233 $ 3,206