Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 25, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table outlines changes to the carrying amount of goodwill (in thousands):

	Goodwill
Balance at September 25, 2020	$	336,945
Translation adjustments	1,440
Balance at June 25, 2021	$	338,385

Schedule of Finite-Lived Intangible Assets

Intangible assets subject to amortization consist of the following (in thousands):

	June 25, 2021						September 25, 2020
Intangible Assets	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Acquired patents and technology	$	342,939	$	(226,981)	$	115,958	$	342,637	$	(206,123)	$	136,514
Customer relationships	64,751		(51,681)		13,070		64,740		(49,062)		15,678
Other intangibles	22,981		(22,795)		186		22,969		(22,730)		239
Total	$	430,671	$	(301,457)	$	129,214	$	430,346	$	(277,915)	$	152,431

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of June 25, 2021, expected amortization expense of our intangible assets in future fiscal periods was as follows (in thousands):

Fiscal Year	Amortization Expense
Remainder of 2021	$	7,724
2022	28,291
2023	23,923
2024	21,894
2025	6,840
Thereafter	40,542
Total	$	129,214