Quarterly report pursuant to Section 13 or 15(d)

Revenues - Disaggregated (Details)

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Revenues - Disaggregated (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disaggregation of Revenue [Line Items]        
Total revenues $ 26,266 $ 16,021 $ 107,284 $ 71,782
Gross product sales        
Disaggregation of Revenue [Line Items]        
Total revenues 22,037 18,353 38,146 33,724
Discounts and allowances        
Disaggregation of Revenue [Line Items]        
Total revenues (4,984) (3,379) (8,717) (6,070)
Product sales, net        
Disaggregation of Revenue [Line Items]        
Total revenues 17,053 14,974 29,429 27,654
License revenues        
Disaggregation of Revenue [Line Items]        
Total revenues 3,305   67,923 39,858
Research and development services and others        
Disaggregation of Revenue [Line Items]        
Total revenues 408 1,047 1,432 4,270
Contract revenues from collaborations        
Disaggregation of Revenue [Line Items]        
Total revenues 3,713 $ 1,047 69,355 $ 44,128
Government contract        
Disaggregation of Revenue [Line Items]        
Total revenues $ 5,500   $ 8,500