Intangible Assets

3 Months Ended

Mar. 31, 2022

Intangible Assets, Net (Excluding Goodwill) [Abstract]

10. INTANGIBLE ASSETS

Intangible assets consisted of the following:


	As of March 31, 2022							As of December 31, 2021
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Customer relationships	$	20,677	$	(10,192	)	$	10,485	$	20,796	$	(9,906	)	$	10,890
Developed technology		8,200		(3,967	)		4,233		8,200		(3,683	)		4,517
Licensed technology		5,900		(2,650	)		3,250		5,900		(2,486	)		3,414
Licensing agreements		560		(243	)		317		560		(225	)		335
Patents		500		(380	)		120		500		(363	)		137
Trade names		210		(210	)		—		210		(210	)		—
Total	$	36,047	$	(17,642	)	$	18,405	$	36,166	$	(16,873	)	$	19,293

The Company evaluates the carrying value of intangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and the undiscounted cash flows estimated to be generated by the asset are less than the asset’s carrying value. Due to the current economic environment, particularly related to COVID-19, the Company assessed impairment

triggers related to intangible assets during the first quarters of 2022 and 2021. As a result, no impairment test of long-lived assets was performed as of March 31, 2022 and 2021, and no impairment losses of intangible assets were recorded during the three months ended March 31, 2022 and 2021.

Amortization expense was $0.9 million and $1.0 million in each of the three months ended March 31, 2022 and 2021, respectively, and was included in cost of revenue, selling, general and administrative expenses and research and development expenses in the Condensed Consolidated Statements of (Loss) Income.

Estimated future amortization expense of intangible assets was as follows:


	As of
(In thousands)	March 31, 2022
2022	$	2,601
2023		3,316
2024		3,224
2025		3,023
2026		1,986
Thereafter		4,255
Total	$	18,405