CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (47.2)	$ 48.7	$ 30.8
Other comprehensive (loss) income, net of tax
Unrealized gain (loss) on defined benefit obligations	0.0	(1.0)	1.4
Income (loss) on forward contracts	0.1	0.1	(0.6)
Unrealized income (loss) on available-for-sale securities	0.1	0.1	(0.1)
Foreign currency translation adjustments	(1.9)	(0.5)	(0.6)
Total comprehensive (loss) income	(48.9)	47.4	30.9
Less: Comprehensive income attributable to noncontrolling interests	0.5	0.5	0.5
Comprehensive (loss) income attributable to Varex	$ (49.4)	$ 46.9	$ 30.4