Annual report pursuant to Section 13 and 15(d)

Concentration of Risk, Segment and Geographic Information - Concentration of Risk (Details)

v3.20.4
Concentration of Risk, Segment and Geographic Information - Concentration of Risk (Details) - customer
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Customer Concentration Risk | Revenues    
Concentration of Risk    
Number of major partners 1 2
Customer Concentration Risk | Revenues | Partner 1    
Concentration of Risk    
Concentration risk (as a percent) 85.00% 76.00%
Customer Concentration Risk | Revenues | Partner 2    
Concentration of Risk    
Concentration risk (as a percent)   14.00%
Credit Concentration Risk | Accounts Receivable    
Concentration of Risk    
Number of major partners 1 1
Credit Concentration Risk | Accounts Receivable | Partner 1    
Concentration of Risk    
Concentration risk (as a percent) 100.00% 100.00%