Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Revenue - Revenue From Licensing Agreements and Strategic Partnerships (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Disaggregation of Revenue [Line Items]        
Total Revenue $ 15,132 $ 8,345 $ 29,009 $ 24,187
Seattle Genetics        
Disaggregation of Revenue [Line Items]        
Total Revenue 576 1,788 2,005 4,519
AstraZeneca        
Disaggregation of Revenue [Line Items]        
Total Revenue 2,903 5,905 12,811 14,841
Servier        
Disaggregation of Revenue [Line Items]        
Total Revenue 11,653 652 14,193 3,279
Other        
Disaggregation of Revenue [Line Items]        
Total Revenue $ 0 $ 0 $ 0 $ 1,548