v3.26.1
COLLABORATION AND LICENSING AGREEMENTS - Schedule of Current Deferred Revenue (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
(in thousands) Current    
Beginning balance $ 1,206 $ 10,686
Prepaid product supply 7,529 227
Product supply delivered (1,997) (4,633)
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance 6,738 6,280
(in thousands) Non-current    
Beginning balance 13,699 7,232
Prepaid product supply 0 5,063
Product supply delivered 0 0
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance 13,699 12,295
Kyowa Kirin | Kyowa Kirin    
(in thousands) Current    
Beginning balance 0 10,686
Prepaid product supply 0 227
Product supply delivered 0 (4,633)
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance 0 6,280
(in thousands) Non-current    
Beginning balance 13,699 7,232
Prepaid product supply 0 5,063
Product supply delivered 0 0
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance 13,699 12,295
Fosun Pharma | Fosun Pharma    
(in thousands) Current    
Beginning balance 1,206 0
Prepaid product supply 7,529 0
Product supply delivered (1,997) 0
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance 6,738 0
(in thousands) Non-current    
Beginning balance 0 0
Prepaid product supply 0 0
Product supply delivered 0 0
Reclassify amounts to be recognized in the next 12 months 0 0
Ending balance $ 0 $ 0