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Segment Information and Information about Geographic Areas - Net Revenues of Customer by Geographic Area (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]        
Total $ 105,075 $ 83,155 $ 298,327 $ 235,299
United States        
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]        
Total 84,319 69,883 239,613 198,223
Other        
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]        
Total $ 20,756 $ 13,272 $ 58,714 $ 37,076