CONCENTRATION OF RISK - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Concentration Risk [Line Items]
Total revenue	$ 130,467	$ 150,470
South Korea [Member]
Concentration Risk [Line Items]
Total revenue	66,060	89,687
China [Member]
Concentration Risk [Line Items]
Total revenue	57,427	55,400
Japan [Member]
Concentration Risk [Line Items]
Total revenue	1,647	1,053
Other Non-U.S. Locations [Member]
Concentration Risk [Line Items]
Total revenue	1,337	300
Total Non-U.S. Locations [Member]
Concentration Risk [Line Items]
Total revenue	126,471	146,440
United States [Member]
Concentration Risk [Line Items]
Total revenue	$ 3,996	$ 4,030