INCOME TAXES - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current income tax provision:
Federal	$ 36	$ (306)	$ (43)
State	3,008	1,408	819
Foreign	1,249	(992)	806
Current income tax provision	4,293	110	1,582
Deferred income tax benefit
Federal	(29,889)	(5,163)	(3,416)
State	(8,712)	(6,249)	517
Foreign	2,295	(3,866)	(351)
Deferred income tax benefit	(36,306)	(15,278)	(3,250)
Income tax benefit	$ (32,013)	$ (15,168)	$ (1,668)