SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Product Warranty Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Movement in Standard Product Warranty Accrual
Accrued product warranty, at beginning of period	$ 7.7	$ 7.9
New accruals charged to cost of revenues	21.0	12.7
Product warranty expenditures	(17.9)	(12.9)
Accrued product warranty, at end of period	$ 10.8	$ 7.7
Minimum
Product Warranty Liability
Warranty term (month)	12 months
Maximum
Product Warranty Liability
Warranty term (month)	24 months