Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Basis of Presentation and Significant Accounting Policies - Concentration of Credit Risk and Significant Customers (Details) - Customer Concentration Risk
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Customer A | REVENUES        
Concentration Risk [Line Items]        
Concentration risk, percentage     0.00% 0.00%
Customer A | ACCOUNTS RECEIVABLE        
Concentration Risk [Line Items]        
Concentration risk, percentage 77.00% 71.00%    
Customer B | REVENUES        
Concentration Risk [Line Items]        
Concentration risk, percentage     25.00% 20.00%
Customer B | ACCOUNTS RECEIVABLE        
Concentration Risk [Line Items]        
Concentration risk, percentage 8.00% 7.00%    
Customer C | REVENUES        
Concentration Risk [Line Items]        
Concentration risk, percentage     10.00% 14.00%
Customer C | ACCOUNTS RECEIVABLE        
Concentration Risk [Line Items]        
Concentration risk, percentage 1.00% 1.00%    
Customer D | REVENUES        
Concentration Risk [Line Items]        
Concentration risk, percentage     11.00% 10.00%
Customer D | ACCOUNTS RECEIVABLE        
Concentration Risk [Line Items]        
Concentration risk, percentage 2.00% 1.00%