DEFERRED REVENUE, REFUND LIABILITY AND LIABILITY RELATED TO SALE OF FUTURE ROYALTIES - Liability Related to Sale of Future Royalties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Feb. 28, 2021
Other Liabilities Disclosure [Abstract]
Payments for royalties	$ 2,000	$ 1,800
Current portion (included in accrued expenses and other current liabilities)	2,048	0
Long-term portion	54,013	57,484	$ 44,800
Total liability related to sale of future royalties	$ 56,061	$ 57,484