Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 132,565	$ 119,605	$ 262,762	$ 227,496
Hosted Services - Business
Disaggregation of Revenue [Line Items]
Total revenue	94,856	95,092	201,180	178,732
Hosted Services - Consumer
Disaggregation of Revenue [Line Items]
Total revenue	9,129	9,810	18,251	18,821
Professional Services
Disaggregation of Revenue [Line Items]
Total revenue	$ 28,580	$ 14,703	$ 43,331	$ 29,943