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Business Segments, Concentration of Credit Risk and Significant Customers - Schedule of Customers Who Accounted for at Least 10% of Total Net Revenue (Details) - Net Revenues - Customer Concentration
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Customer A    
Significant Customers    
Percentage of concentration risk 38.00% 26.00%
Customer B    
Significant Customers    
Percentage of concentration risk 20.00% 19.00%
Customer C    
Significant Customers    
Percentage of concentration risk 18.00% 14.00%
Customer D    
Significant Customers    
Percentage of concentration risk   12.00%
Customer E    
Significant Customers    
Percentage of concentration risk   11.00%