Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Revenue - Revenue From Licensing Agreements and Strategic Partnerships (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disaggregation of Revenue [Line Items]    
Total Revenue $ 29,101 $ 25,275
AstraZeneca    
Disaggregation of Revenue [Line Items]    
Total Revenue 17,632 19,769
Seattle Genetics    
Disaggregation of Revenue [Line Items]    
Total Revenue 5,413 0
Servier    
Disaggregation of Revenue [Line Items]    
Total Revenue 4,508 1,907
Other    
Disaggregation of Revenue [Line Items]    
Total Revenue $ 1,548 $ 3,599