COLLABORATION AND LICENSING AGREEMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total revenues	$ 97,662		$ 73,222	$ 171,776	$ 119,245
Licensing revenue
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total revenues	20		19	5,040	36
Fosun Pharma | Fosun Agreement | Licensing revenue
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total revenues	0	$ 5,000	0	5,000	0
AstraZeneca | AZ Termination Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Cost of revenue	3,800		$ 7,900	12,700	$ 12,600
Maximum potential payment per agreement	$ 75,000			$ 75,000