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Geographic Information and Concentrations of Risk - Narrative (Details) - Customer Concentration
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Net Revenues | Customer One        
Segment Reporting Information [Line Items]        
Concentration percentage 58.40% 57.70% 56.40% 55.80%
Accounts Receivable | Customer One        
Segment Reporting Information [Line Items]        
Concentration percentage     53.00% 25.00%
Accounts Receivable | Customer Two        
Segment Reporting Information [Line Items]        
Concentration percentage       11.20%