Revenue Recognition - Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total deferred revenue - short term	$ 103,219	$ 98,808
Total deferred revenue - long term	287	54
Hosted Services - Business
Disaggregation of Revenue [Line Items]
Total deferred revenue - short term	101,113	94,107
Total deferred revenue - long term	171	0
Hosted Services - Consumer
Disaggregation of Revenue [Line Items]
Total deferred revenue - short term	795	870
Professional Services
Disaggregation of Revenue [Line Items]
Total deferred revenue - short term	1,311	3,831
Total deferred revenue - long term	$ 116	$ 54