INCOME TAXES - Income before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
U.S.	$ (38,717)	$ (87,557)	$ (80,182)
Foreign	10,509	(7,001)	(13,730)
Loss from continuing operations before income taxes	$ (28,208)	$ (94,558)	$ (93,912)