Share-based compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 20,490	$ 15,836	$ 89,524	$ 22,774
Cost of revenues | Subscription
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	2,479	1,716	6,495	2,384
Cost of revenues | Services
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	344	229	961	381
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	6,955	4,833	26,625	6,763
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	5,130	5,145	19,620	7,076
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 5,582	$ 3,913	$ 35,823	$ 6,170