INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
INCOME TAXES
Income tax benefit	$ (523)	$ 0	$ (32,761)	$ 0
Decreases recorded as a benefit to income tax provision	500		32,800
Unrecognized tax benefits	$ 1,200		$ 1,200