Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Financial Assets and Liabilities Carried at FV on Recurring Basis and Exarafenib Milestone Contingent Consideration (Details)

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Fair Value Measurements - Financial Assets and Liabilities Carried at FV on Recurring Basis and Exarafenib Milestone Contingent Consideration (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Assets:    
Exarafenib milestone asset (Note 4) $ 2,922  
Liabilities:    
Exarafenib milestone contingent consideration (Note 4) 2,922  
Fair Value, Recurring    
Assets:    
Cash equivalents 128,877 $ 28,352
Exarafenib milestone asset (Note 4) 2,922  
Equity securities 696 161
Total financial assets 132,495 28,513
Liabilities:    
Exarafenib milestone contingent consideration (Note 4) 2,922  
Contingent consideration under RPAs, AAAs and CPPAs, measured at fair value   1,000
Total financial liabilities 2,922  
Fair Value, Recurring | Money market funds    
Assets:    
Cash equivalents 128,877 28,352
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets:    
Cash equivalents 128,877 28,352
Equity securities 696 161
Total financial assets 129,573 28,513
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds    
Assets:    
Cash equivalents 128,877 28,352
Fair Value, Recurring | Significant Unobservable Inputs (Level 3)    
Assets:    
Exarafenib milestone asset (Note 4) 2,922  
Total financial assets 2,922  
Liabilities:    
Exarafenib milestone contingent consideration (Note 4) 2,922  
Contingent consideration under RPAs, AAAs and CPPAs, measured at fair value   $ 1,000
Total financial liabilities $ 2,922