Goodwill and Intangible Assets (Tables)

12 Months Ended

Oct. 02, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Intangible Assets Excluding Goodwill

Intangible assets consist of the following (in millions):

		As of						As of
	Weighted average amortization period (years)	October 2, 2020						September 27, 2019
		Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Customer relationships	5.0	$	18.2	$	(15.8)	$	2.4	$	25.6	$	(19.5)	$	6.1
Developed technology and other	3.8	101.0		(81.6)		19.4		94.4		(48.9)		45.5
Trademarks	3.0	1.6		(1.5)		0.1		1.6		(1.3)		0.3
Technology licenses	3.0	26.3		(14.2)		12.1		$	24.9	(4.8)		20.1
IPR&D		19.5		—		19.5		$	35.9	—		35.9
Total intangible assets		$	166.6	$	(113.1)	$	53.5	$	182.4	$	(74.5)	$	107.9

Schedule of Expected Amortization Expense

Annual amortization expense for the next five fiscal years related to definite-lived intangible assets, excluding IPR&D, is expected to be as follows (in millions):

	2021		2022		2023		2024		2025		Thereafter
Amortization expense, cost of goods sold	$	6.0	$	0.1	$	0.1	$	0.1	$	0.1	$	1.7
Amortization expense, operating expense	$	17.0	$	5.0	$	1.0	$	1.0	$	1.0	$	0.9
Total amortization expense	$	23.0	$	5.1	$	1.1	$	1.1	$	1.1	$	2.6