Quarterly report pursuant to Section 13 or 15(d)

Revenue - Revenue From Licensing Agreements and Strategic Partnerships (Details)

v3.20.1
Revenue - Revenue From Licensing Agreements and Strategic Partnerships (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Total Revenue $ 13,261 $ 8,545
Seattle Genetics    
Disaggregation of Revenue [Line Items]    
Total Revenue 448 925
AstraZeneca    
Disaggregation of Revenue [Line Items]    
Total Revenue 2,711 6,020
Servier    
Disaggregation of Revenue [Line Items]    
Total Revenue $ 10,102 $ 1,600