DEBT - Schedule of Carrying Values Convertible Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Derivative liability for embedded conversion feature	$ 764	$ 252
6.5% Convertible Senior Secured Notes due 2027 | Convertible notes
Debt Instrument [Line Items]
Principal balance	40,000	70,000
Derivative liability for embedded conversion feature	764	252
Unamortized debt issuance costs	(1,898)	(3,849)
Carrying balance	$ 38,866	$ 66,403