Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Revenue by Geographic Area (Details)

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Summary of Significant Accounting Policies - Revenue by Geographic Area (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]        
Revenue $ 8,711 $ 2,273 $ 17,029 $ 12,233
United States        
Disaggregation of Revenue [Line Items]        
Revenue 7,103 659 15,349 9,290
Other        
Disaggregation of Revenue [Line Items]        
Revenue $ 1,608 $ 1,614 $ 1,680 $ 2,943