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Geographic Information and Concentrations of Risk - Net Revenues (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net revenues $ 61,384 $ 57,597
United States and Canada    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net revenues 52,642 42,736
Europe    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net revenues 5,620 5,833
South Africa    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net revenues 0 7,108
Other    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net revenues $ 3,122 $ 1,920