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Restructuring and Related Activities (Tables)
12 Months Ended
Oct. 02, 2021
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Accrual Activity The Company's restructuring accrual activity for fiscal 2021, 2020 and 2019 is included in the table below (in thousands):
Fixed Asset and Operating Right-of-Use Asset ImpairmentEmployee Termination and Severance Costs    Total
Accrual balance, as of September 29, 2018
$— $— $— 
Restructuring and impairment costs— 1,678 1,678 
Amounts utilized— (381)(381)
Accrual balance, as of September 28, 2019
$— $1,297 $1,297 
Restructuring and impairment costs3,054 2,949 6,003 
Amounts utilized(3,054)(4,210)(7,264)
Accrual balance, as of October 3, 2020
$— $36 $36 
Restructuring and impairment costs— 3,267 3,267 
Amounts utilized— (3,232)(3,232)
Accrual balance, as of October 2, 2021
$— $71 $71