Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 29, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Activity of Goodwill by Reportable Operating Segment

The following table reflects the activity of goodwill by reportable operating segment:

(In millions)	Oncology Systems		Varian Particle Therapy			Total
Balance at October 2, 2015	$	158.8	$	50.0		$	208.8
Business combinations	11.4		—			11.4
Foreign currency translation adjustments	—		(0.2		)	(0.2		)
Balance at September 30, 2016	170.2		49.8			220.0
Foreign currency translation adjustments	—		2.6			2.6
Balance at September 29, 2017	$	170.2	$	52.4		$	222.6

Schedule of Indefinite-Lived Intangible Assets

The following table reflects the gross carrying amount and accumulated amortization of the Company’s intangible assets:

	September 29, 2017							September 30, 2016
(In millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Technologies and patents	$	102.0	$	(60.9	)	$	41.1	$	99.6	$	(50.2	)	$	49.4
Customer contracts and supplier relationship	33.9		(14.3		)	19.6		32.3		(10.8		)	21.5
Other	5.5		(3.4		)	2.1		5.6		(1.2		)	4.4
Total intangible with finite lives	141.4		(78.6		)	62.8		137.5		(62.2		)	75.3
In-process research and development with indefinite lives	8.8		—			8.8		8.8		—			8.8
Total intangible assets	$	150.2	$	(78.6	)	$	71.6	$	146.3	$	(62.2	)	$	84.1

Gross Carrying Amount and Accumulated Amortization of Intangible Assets

The following table reflects the gross carrying amount and accumulated amortization of the Company’s intangible assets:

	September 29, 2017							September 30, 2016
(In millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Technologies and patents	$	102.0	$	(60.9	)	$	41.1	$	99.6	$	(50.2	)	$	49.4
Customer contracts and supplier relationship	33.9		(14.3		)	19.6		32.3		(10.8		)	21.5
Other	5.5		(3.4		)	2.1		5.6		(1.2		)	4.4
Total intangible with finite lives	141.4		(78.6		)	62.8		137.5		(62.2		)	75.3
In-process research and development with indefinite lives	8.8		—			8.8		8.8		—			8.8
Total intangible assets	$	150.2	$	(78.6	)	$	71.6	$	146.3	$	(62.2	)	$	84.1

Future Amortization of Intangible Assets

As of September 29, 2017, the Company estimates that its remaining amortization expense for intangible assets with finite lives will be as follows (in millions):

Fiscal Years	Total
2018	$	17.4
2019	13.0
2020	9.3
2021	7.2
2022	6.0
Thereafter	9.9
Total remaining amortization	$	62.8