Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.20.2
Summary of Significant Accounting Policies - Additional Information (Details) - Customer Concentration Risk - Customer
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Accounts Receivable          
Accounting Policies [Line Items]          
Number of customers     3   1
Revenues          
Accounting Policies [Line Items]          
Number of customers 2 2 2 2  
Customer One | Accounts Receivable          
Accounting Policies [Line Items]          
Concentration risk percentage     30.00%   55.00%
Customer One | Revenues          
Accounting Policies [Line Items]          
Concentration risk percentage 19.00% 20.00% 19.00% 21.00%  
Customer Two | Accounts Receivable          
Accounting Policies [Line Items]          
Concentration risk percentage     12.00%    
Customer Two | Revenues          
Accounting Policies [Line Items]          
Concentration risk percentage 12.00% 14.00% 13.00% 14.00%  
Customer Three | Accounts Receivable          
Accounting Policies [Line Items]          
Concentration risk percentage     10.00%