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Business Combinations - Summary of Adjustments in Unaudited Pro Forma Combined Net Revenues (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Business Acquisition [Line Items]        
Net revenue $ 15,455 $ 13,010 $ 50,129 $ 35,672
Net revenue - pro forma combined 15,455 15,323 50,161 45,244
NimbeLink        
Business Acquisition [Line Items]        
Add: Net revenue - acquired businesses 0 2,313 32 9,572
Net revenue - pro forma combined $ 15,455 $ 15,323 $ 50,161 $ 45,244