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Disaggregated Revenues - Additional 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]        
Disaggregated revenues $ 15,455 $ 13,010 $ 50,129 $ 35,672
United States | NimbeLink        
Disaggregation Of Revenue [Line Items]        
Disaggregated revenues $ 8,800 $ 2,400 $ 22,500 $ 6,900