Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies - Concentration of Risk (Details)

v3.20.2
Basis of Presentation and Significant Accounting Policies - Concentration of Risk (Details) - Customer Concentration Risk - customer
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Trade Receivables          
Concentration of Risk          
Number of major partners     1   1
Concentration risk (as a percent)         100.00%
Revenues          
Concentration of Risk          
Number of major partners 2 2 3 2  
Revenues | Partner 1          
Concentration of Risk          
Concentration risk (as a percent) 64.00% 68.00% 58.00% 78.00%  
Revenues | Partner 2          
Concentration of Risk          
Concentration risk (as a percent)   28.00% 28.00% 14.00%  
Revenues | Partner 3          
Concentration of Risk          
Concentration risk (as a percent) 36.00%   11.00%