Goodwill and Intangible Assets

6 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Goodwill

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

	Goodwill
Balance at September 30, 2022	$	365,147
Translation adjustments	4,987
Balance at March 31, 2023	$	370,134

Intangible Assets

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

	March 31, 2023						September 30, 2022
Intangible Assets, Net	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Acquired patents and technology	$	356,935	$	(265,914)	$	91,021	$	355,622	$	(253,080)	$	102,542
Customer relationships	66,187		(58,417)		7,770		66,142		(56,572)		9,570
Other intangible assets	23,028		(22,943)		85		22,973		(22,820)		153
Total	$	446,150	$	(347,274)	$	98,876	$	444,737	$	(332,472)	$	112,265

During the fiscal year-to-date period ended April 1, 2022, we purchased various patents for purchase consideration of $11.5 million, and upon acquisition, these intangible assets had a weighted-average useful life of 16.0 years. These intangible assets facilitate our R&D efforts, technologies, and potential product offerings. There were no purchases of intangible assets during the second quarter of fiscal 2023 and the fiscal year-to-date period ended March 31, 2023.

Amortization expense for our intangible assets is included in cost of licensing, cost of products and services, R&D, S&M, and G&A expenses in our unaudited interim condensed consolidated statements of operations. Amortization expense was $7.0 million and $7.6 million in the second quarters of fiscal 2023 and 2022, respectively, and $13.3 million and $15.6 million in the fiscal year-to-date periods ended March 31, 2023 and April 1, 2022, respectively. As of March 31, 2023, expected amortization expense of our intangible assets in future fiscal periods was as follows (in thousands):

Fiscal Year	Amortization Expense
Remainder of 2023	$	12,349
2024	23,773
2025	8,860
2026	7,969
2027	7,285
Thereafter	38,640
Total	$	98,876