BORROWINGS- Schedule of Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Senior Secured Convertible Notes, current	$ 0	$ 163,556
Senior Secured Convertible Notes, non-current	383,571	382,208
Principal repayment obligation	391,012	557,678
Unamortized DFC	(7,441)	(11,914)
Carrying value	383,571	545,764
6.00% Senior Secured Convertible Notes Due 2025
Debt Instrument [Line Items]
Principal repayment obligation, current	0	166,666
Unamortized debt issuance costs, current	0	(3,110)
Senior Secured Convertible Notes, current	0	163,556
Principal repayment obligation, non-current	333,334	333,334
Unamortized debt issuance costs, noncurrent	(5,024)	(6,219)
Senior Secured Convertible Notes, non-current	328,310	327,115
Senior Notes due 2028
Debt Instrument [Line Items]
Principal repayment obligation, non-current	57,678	57,678
Unamortized debt issuance costs, noncurrent	(2,417)	(2,585)
Senior Secured Convertible Notes, non-current	$ 55,261	$ 55,093