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Revenue - Summary of Disaggregation of Revenue (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Disaggregation of Revenue [Line Items]        
Total Revenue $ 69,209 $ 62,223 $ 197,957 $ 180,039
Platform Subscription [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenue 31,912 26,736 90,195 78,112
Visits [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenue 28,807 30,042 89,293 85,395
Others [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenue $ 8,490 $ 5,445 $ 18,469 $ 16,532