Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Contingent Consideration (Details)

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Commitments and Contingencies - Contingent Consideration (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended
Sep. 30, 2019
Mar. 31, 2022
Dec. 31, 2021
Oct. 06, 2021
Apr. 07, 2019
Feb. 25, 2019
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   $ 3,075 $ 8,075      
Royalty Purchase Agreement | Bioasis            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs           $ 100
Payments of contingent consideration   0        
Changes in estimated fair value of contingent consideration   0        
Royalty Purchase Agreement | Aronora            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs         $ 3,000  
Payments of contingent consideration $ 3,000          
Royalty Purchase Agreement | Aronora | Royalty milestones            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   0        
Royalty Purchase Agreement | Kuros | Sales milestones            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   0        
Commercial payment purchase agreement | Affitech            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   3,000   $ 8,000    
Commercial payment purchase agreement | Affitech | Regulatory milestones            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   3,000   $ 8,000    
Commercial payment purchase agreement | Affitech | Sales milestones            
Commitments And Contingencies            
Contingent consideration under RPAs and CPPAs   $ 0