XML 51 R54.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Collaboration and Other Agreements, NIAID Contract (Details)
 3 Months Ended 12 Months Ended
Sep. 15, 2015
USD ($)
Molecule
Dec. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Collaboration and Other Agreements [Line Items]                        
Revenues   $ 25,192,000 $ 18,741,000 $ 10,593,000 $ 9,662,000 $ 15,794,000 $ 20,798,000 $ 18,834,000 $ 4,695,000 $ 64,188,000 $ 60,121,000 $ 157,742,000
NIAID                        
Collaboration and Other Agreements [Line Items]                        
Commercialization of molecules | Molecule 2                      
Base period value $ 7,500,000                      
Proceeds from additional development funding options under agreement                       10,800,000
NIAID | Maximum                        
Collaboration and Other Agreements [Line Items]                        
Additional development funding options 17,000,000.0                      
Total potential value $ 24,500,000                      
Revenues From License Agreements | NIAID                        
Collaboration and Other Agreements [Line Items]                        
Revenues                   $ 2,200,000 $ 1,300,000 $ 1,700,000