CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 29, 2017	Dec. 30, 2016
Income Statement [Abstract]
Revenues	$ 176.2	$ 157.4
Cost of revenues	114.7	98.6
Gross margin	61.5	58.8
Operating expenses:
Research and development	19.7	13.3
Selling, general and administrative	28.2	26.9
Total operating expenses	47.9	40.2
Operating earnings	13.6	18.6
Interest income	0.1	0.1
Interest expense	(5.5)	(0.6)
Other (expense) income, net	(1.1)	0.2
Interest and other income (expense), net	(6.5)	(0.3)
Earnings before taxes	7.1	18.3
(Benefit) taxes on earnings	(4.3)	7.1
Net earnings	11.4	11.2
Less: Net earnings attributable to noncontrolling interests	0.1	0.1
Net earnings attributable to Varex	$ 11.3	$ 11.1
Net earnings per common share attributable to Varex
Earnings per share, basic (in USD per share)	$ 0.30	$ 0.30
Earnings per share, diluted (in USD per share)	$ 0.30	$ 0.29
Weighted average common shares outstanding
Weighted average number of shares outstanding, basic	37.7	37.4
Weighted average number of shares outstanding,diluted	38.2	37.7