LIABILITY RELATED TO THE SALE OF FUTURE ROYALTIES - Future Royalties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Liability Related To Sale Of Future Royalties [Roll Forward]
Beginning balance	$ 1,151,024
Ending balance	1,252,015	$ 1,151,024
Blackstone Group Inc. | Net revenues from collaborations
Liability Related To Sale Of Future Royalties [Roll Forward]
Beginning balance	1,188,103	1,071,541
Interest expense recognized	107,601	116,940
Payments	(3,400)	(378)
Ending balance	$ 1,292,304	$ 1,188,103