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LEASES - Lease Expenses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 02, 2021
Oct. 03, 2020
Lease, Lease Expenses [Abstract]    
Operating lease expense - occupancy expense $ 7,557 $ 9,449
Occupancy lease expense - general and administrative expenses 396 635
Variable lease expense 2,970 2,960
Total lease expense 10,923 13,044
Lease, Supplemental Cash Flow [Abstract]    
Operating cash flows related to operating leases 10,485 9,500
ROU assets obtained in exchange for new operating lease liabilities $ 8,712 $ 62,330
Lease, Weighted Average Remaining Lease Term And Discount Rate [Abstract]    
Weighted Average Remaining Lease Term 13 years 6 months  
Weighted Average Discount Rate 5.20%