Intangible Assets (Tables)

12 Months Ended

Oct. 02, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Amortization Expense Related to Amortizable Intangible Assets

Amortization expense related to intangible assets is as follows (in thousands):

	Fiscal Years
	2020		2019		2018
Cost of revenue	$	17,462	$	29,847	$	33,429
Selling, general and administrative	32,868		44,872		48,265
Total	$	50,330	$	74,719	$	81,694

Summary of Intangible Assets

Intangible assets consist of the following (in thousands):

	October 2, 2020		September 27, 2019
Acquired technology	$	179,434	$	179,682
Customer relationships	245,870		245,870
Trade name, indefinite lived	3,400		3,400
Total	428,704		428,952
Less accumulated amortization	(297,806)		(247,724)
Intangible assets — net	$	130,898	$	181,228

Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years

As of October 2, 2020, our estimated amortization of our intangible assets in future fiscal years, was as follows (in thousands):

	2021		2022	2023	2024	2025	Thereafter
Amortization expense	$	46,213	33,433	26,048	15,410	3,489	2,905

Summary of Activity in Intangible Assets and Goodwill

A summary of the activity in intangible assets and goodwill follows (in thousands):

	Gross Intangible Assets
	Total Intangibles		Acquired Technology		Customer Relationships		Trade Name		Total Goodwill
Balance as of September 28, 2018	$	773,307	$	251,673	$	518,234	$	3,400	$	314,076
Currency translation adjustments	270		270		—		—		651
Impairments of intangible assets	(344,625)		(72,261)		(272,364)		—		—
Balance as of September 27, 2019	428,952		179,682		245,870		3,400		314,727
Currency translation adjustments	—		—		—		—		285
Disposals of intangible assets	(248)		(248)		—		—		—
Balance as of October 2, 2020	$	428,704	$	179,434	$	245,870	$	3,400	$	315,012