LICENSE, COLLABORATION AND OTHER REVENUE - Revenues Recognized From License, Collaboration and Other Significant Agreements (Details) - USD ($) $ in Thousands		3 Months Ended
	Dec. 11, 2015	Mar. 31, 2024	Mar. 31, 2023
License Collaboration And Other Revenue [Abstract]
Total revenues		$ 32,607	$ 40,005
MTPC
License Collaboration And Other Revenue [Abstract]
Total revenues	$ 5,400
License, collaboration and other revenue
License Collaboration And Other Revenue [Abstract]
Total revenues		1,598	5,299
License, collaboration and other revenue | MTPC
License Collaboration And Other Revenue [Abstract]
Total revenues		412	4,162
License, collaboration and other revenue | JT and Torii
License Collaboration And Other Revenue [Abstract]
Total revenues		1,186	1,137
License, collaboration and other revenue | Total license and other revenue
License Collaboration And Other Revenue [Abstract]
Total revenues		$ 1,598	$ 5,299