Intangible Assets

6 Months Ended

Apr. 03, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

INTANGIBLE ASSETS

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



	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	4,347	$	7,883	$	8,767	$	15,935
Selling, general and administrative	8,072		11,873		16,726		24,392
Total	$	12,419	$	19,756	$	25,493	$	40,327

Intangible assets consist of the following (in thousands):



	April 3, 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	(272,969		)	(247,724		)
Intangible assets — net	$	155,735		$	181,228

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



	Intangible Assets
	Total Intangible Assets			Acquired Technology			Customer Relationships		Trade Name		Goodwill
Balance at September 27, 2019	$	428,952		$	179,682		$	245,870	$	3,400	$	314,727
Disposal of a fully amortized intangible asset	(248		)	(248		)	—		—		—
Currency translation adjustment	—			—			—		—		93
Balance at April 3, 2020	$	428,704		$	179,434		$	245,870	$	3,400	$	314,820

As of April 3, 2020, our estimated amortization of our intangible assets in future fiscal years was as follows (in thousands):



	2020 Remaining		2021	2022	2023	2024	Thereafter	Total
Amortization expense	$	24,837	46,213	33,433	26,048	15,410	6,394	$	152,335

Accumulated amortization for acquired technology and customer relationships were $143.4 million and $129.6 million, respectively, as of April 3, 2020, and $134.8 million and $112.9 million, respectively, as of September 27, 2019.