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Geographic Information and Concentrations of Risk - Narrative (Details) - Customer Concentration
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Net Revenues | Customer One        
Segment Reporting Information [Line Items]        
Concentration percentage 55.60% 56.00% 54.70% 54.70%
Accounts Receivable | Customer One        
Segment Reporting Information [Line Items]        
Concentration percentage     44.30% 25.00%
Accounts Receivable | Customer Two        
Segment Reporting Information [Line Items]        
Concentration percentage     6.00% 11.20%
Accounts Receivable | Customer Three        
Segment Reporting Information [Line Items]        
Concentration percentage     5.30%