Related party transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Affiliated Entity | Naspers Ltd. and Other Entity
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.4	$ 0.3	$ 0.8	$ 0.6
Accounts receivable, related parties	0.1		0.1		$ 0.1
Affiliated Entity | Certain Vendors
Related Party Transaction [Line Items]
General and administrative expenses, related party	0.3	0.2	0.5	0.3
Accounts payable, related parties	0.2		0.2		$ 0.1
Board of Directors | Enterprise Subscription Offering
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.1	$ 0.0	$ 0.2	$ 0.0