Revenue recognition - Deferred Revenue Balances by Reportable Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 243,652	$ 210,554	$ 142,376
Enterprise
Disaggregation of Revenue [Line Items]
Total deferred revenue	188,642	148,966	84,241
Consumer
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 55,010	$ 61,588	$ 58,135