CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 17.9	$ (57.4)	$ 15.8
Other comprehensive income (loss), net of tax:
Unrealized gain on interest rate swap contracts, net of tax	0.0	0.4	(6.2)
Unrealized (loss) gain on defined benefit obligations	(0.1)	0.6	(1.3)
Foreign currency translation adjustments	(0.7)	1.5	0.0
Other Comprehensive Income (Loss), Net of Tax, Total	(0.8)	2.5	(7.5)
Comprehensive income (loss)	17.1	(54.9)	8.3
Less: Comprehensive income attributable to noncontrolling interests	0.5	0.5	0.3
Comprehensive income (loss) attributable to Varex	$ 16.6	$ (55.4)	$ 8.0