LEASES - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 27, 2025	Dec. 28, 2024	Sep. 27, 2025
Lease, Lease Expenses [Abstract]
Operating lease expense - occupancy expenses	$ 3,219	$ 3,382
Occupancy lease expense - general and administrative expenses	121	121
Variable lease expense - occupancy expenses	1,000	1,252
Total lease expense	4,340	4,755
Lease, Supplemental Cash Flow [Abstract]
Operating cash flows related to operating leases	$ 4,234	$ 4,757
Lease, Weighted Average Remaining Lease Term And Discount Rate [Abstract]
Weighted average remaining lease term	10 years 8 months 12 days		10 years 10 months 24 days
Weighted average discount rate	6.20%		6.20%