OTHER FINANCIAL INFORMATION - Other Income (Expense) Net (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Loss from equity method investments	$ (3.4)	$ (2.1)	$ (2.3)
Change in fair value of deferred consideration	0.0	0.9	1.0
Impairment of investment	0.0	(2.7)	0.0
Realized loss on foreign currencies	(0.2)	(3.7)	(1.9)
Other	0.1	0.0	0.0
Total other expense, net	$ (3.5)	$ (7.6)	$ (3.2)