Quarterly report pursuant to Section 13 or 15(d)

Customer Concentration (Details)

v3.20.2
Customer Concentration (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Customer A [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 15.00% 17.00% 15.00% 18.00%  
Customer A [Member] | Accounts Receivable, Net and Contract Assets, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage         12.00%
Customer B [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 12.00% 11.00% 10.00% 11.00%  
Customer C [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 10.00% 11.00%   12.00%  
Customer C [Member] | Accounts Receivable, Net and Contract Assets, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     11.00%   13.00%
Customer D [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage   12.00%   13.00%  
Customer E [Member] | Accounts Receivable, Net and Contract Assets, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     10.00%