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Operating Segment and Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of Revenue [Line Items]        
Total revenue $ 29,854 $ 17,863 $ 80,533 $ 49,258
United States        
Disaggregation of Revenue [Line Items]        
Total revenue 28,518 17,402 74,727 48,132
All other countries        
Disaggregation of Revenue [Line Items]        
Total revenue $ 1,336 $ 461 $ 5,806 $ 1,126