Quarterly report pursuant to Section 13 or 15(d)

Royalty and Commercial Payment Purchase Agreements - Agenus (Details)

v3.23.3
Royalty and Commercial Payment Purchase Agreements - Agenus (Details)
$ in Thousands
1 Months Ended 9 Months Ended
Sep. 20, 2018
USD ($)
item
Nov. 30, 2020
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Agreements          
Payments of consideration under RPAs, AAAs and CPPAs     $ 14,650 $ 8,000  
Long-term royalty and commercial payment receivables     74,696   $ 63,683
Royalty Purchase Agreement | Merck Immuno-Oncology Product | Agenus          
Agreements          
Amount of milestone earned under agreement   $ 10,000      
Agenus | Royalty Purchase Agreement          
Agreements          
Payments of consideration under RPAs, AAAs and CPPAs $ 15,000        
Long-term royalty and commercial payment receivables $ 15,000        
Amount of allowance for credit losses     $ 0   $ 0
Agenus | Royalty Purchase Agreement | Incyte Immuno-Oncology Assets          
Agreements          
Royalties entity has right to receive (as a percent) 33.00%        
Number of licensed products related to milestone and royalties | item 6        
Purchased percentage of milestones 10.00%        
Agenus | Royalty Purchase Agreement | Merck Immuno-Oncology Product          
Agreements          
Royalties entity has right to receive (as a percent) 33.00%        
Purchased percentage of milestones 10.00%        
Purchased eligible milestone payments receivable upon achievement of potential development, regulatory and commercial milestones $ 59,500        
Amount of milestone earned under agreement   1,000      
Reduction in long-term royalty receivable balance due to receipt of payment   $ 1,000