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DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Amortization of Royalty Rights	$ 0	$ 80	$ 0	$ 128
Total interest expense	752	2,052	2,625	6,648
Senior Notes
Debt Instrument [Line Items]
Amortization of debt issuance costs	102	0	350	0
Senior Notes | Interest on 2027 Convertible Notes
Debt Instrument [Line Items]
Interest payable on notes	650	456	2,275	456
Interest on 2024 Secured Notes
Debt Instrument [Line Items]
Interest payable on notes	0	$ 1,516	0	$ 6,064
Interest on 2024 Secured Notes | Interest on 2027 Convertible Notes
Debt Instrument [Line Items]
Amortization of debt issuance costs	$ 100		$ 400

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