GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill consisted of the following:

	Six Months Ended June 30,
	2022
	(In thousands)
Beginning balance	$	7,470
Acquisition of business	—
Impairment losses	—
Ending balance	$	7,470

Schedule of Finite-Lived Intangible Assets

Other intangible assets, net consisted of the following:

	June 30, 2022
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Book Value
		(In thousands)
Patents:
Intellectual property operations	6 years	$	331,403	$	(299,543)	$	31,860
Industrial operations	7 years	3,400		(354)		3,046
Total patents		334,803		(299,897)		34,906
Customer relationships - industrial operations	7 years	5,300		(553)		4,747
Trade name and trademarks - industrial operations	7 years	3,430		(358)		3,072
Total		$	343,533	$	(300,808)	$	42,725

	December 31, 2021
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Book Value
		(In thousands)
Patents:
Intellectual property operations	6 years	$	331,403	$	(294,341)	$	37,062
Industrial operations	7 years	3,400		(112)		3,288
Total patents		$	334,803	$	(294,453)	$	40,350
Customer relationships - industrial operations	7 years	5,300		(174)		5,126
Trade name and trademarks - industrial operations	7 years	3,430		(113)		3,317
Total		$	343,533	$	(294,740)	$	48,793

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table presents the scheduled annual aggregate amortization expense (in thousands):

Years Ending December 31,
Remainder of 2022	$	6,068
2023	12,068
2024	10,692
2025	8,348
2026	2,483
Thereafter	3,066
Total	$	42,725