Goodwill and Intangible Assets

6 Months Ended

Mar. 27, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

. Goodwill & Intangible Assets

Goodwill

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


	Goodwill
Balance at September 27, 2019	$	334,829
Acquired goodwill	—
Translation adjustments	(1,850)
Balance at March 27, 2020	$	332,979

Intangible Assets

Our intangible assets are stated at their original cost less accumulated amortization, and principally consist of acquired technology, patents, trademarks, customer relationships and contracts. Intangible assets subject to amortization consist of the following (in thousands):


	March 27, 2020										September 27, 2019
Intangible Assets	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Acquired patents and technology	$	341,531	$	(191,399)	$	150,132	$	338,075	$	(176,867)	$	161,208
Customer relationships	64,705		(47,271)		17,434		64,728		(45,510)		19,218
Other intangibles	22,926		(22,575)		351		22,902		(22,437)		465
Total	$	429,162	$	(261,245)	$	167,917	$	425,705	$	(244,814)	$	180,891

We purchase various patents and developed technologies that enable us to further develop our audio, imaging, and potential product offerings.

With regard to our purchase of intangible assets during the periods presented, the following table summarizes the consideration paid, the weighted-average useful lives over which the acquired assets will be amortized using the greater of either the straight-line basis or a ratio-to-revenue method, and the classification of their amortized expense in our consolidated statements of operations:


Fiscal Period	Total Purchase Consideration (1)	Weighted-Average Useful Life
	(in millions)	(in years)













Fiscal 2019
Q1 - Quarter ended December 28, 2018	$12.1	11.6
Q2 - Quarter ended March 29, 2019	$5.0	4.0


	$17.1	9.3
Fiscal 2020
Q1 - Quarter ended December 27, 2019	$2.9	14.0
Q2 - Quarter ended March 27, 2020	None


	$2.9	14.0

(1) Amortization expense on the intangible assets from patent portfolio and business acquisitions is included within cost of revenue, R&D, S&M, and G&A in our consolidated statements of operations.

Amortization expense for our intangible assets is included in cost of licensing, cost of products, R&D, S&M, and G&A expenses in our consolidated statements of operations. Amortization expense was $7.6 million and $7.4 million in the second quarter of fiscal 2020 and 2019, respectively, and $14.8 million and $14.1 million in the fiscal year-to-date period ended March 27, 2020 and March 29, 2019, respectively. As of March 27, 2020, estimated amortization expense in future fiscal periods was as follows (in thousands):


Fiscal Year	Amortization Expense
	(in thousands)
Remainder of 2020	$	15,583
2021	30,987
2022	28,386
2023	23,965
2024	21,931
Thereafter	47,065
Total	$	167,917