Annual report pursuant to Section 13 and 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
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]    
Total Revenue $ 46,279 $ 29,101
AstraZeneca    
Disaggregation of Revenue [Line Items]    
Total Revenue 25,828 17,632
Seattle Genetics    
Disaggregation of Revenue [Line Items]    
Total Revenue 2,493 5,413
Servier    
Disaggregation of Revenue [Line Items]    
Total Revenue 15,048 4,508
Other    
Disaggregation of Revenue [Line Items]    
Total Revenue $ 2,910 $ 1,548