Share capital - Schedule of Stock Option Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	8,786,364	8,549,322
Options outstanding, weighted average remaining contractual term	5 years 4 months 24 days
Number of options exercisable (in shares)	7,103,058
Options exercisable, weighted average remaining contractual term	4 years 8 months 12 days
0.00 - 10.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	971,356
Options outstanding, weighted average remaining contractual term	3 years 8 months 4 days
Number of options exercisable (in shares)	971,356
Options exercisable, weighted average remaining contractual term	3 years 8 months 4 days
0.00 - 10.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 0.00
0.00 - 10.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 10.00
10.01 - 20.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	2,570,427
Options outstanding, weighted average remaining contractual term	3 years 11 months 19 days
Number of options exercisable (in shares)	2,570,427
Options exercisable, weighted average remaining contractual term	3 years 11 months 19 days
10.01 - 20.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 10.01
10.01 - 20.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 20.00
20.01 - 30.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	1,773,039
Options outstanding, weighted average remaining contractual term	4 years 6 months 3 days
Number of options exercisable (in shares)	1,773,039
Options exercisable, weighted average remaining contractual term	4 years 6 months 3 days
20.01 - 30.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 20.01
20.01 - 30.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 30.00
30.01 - 40.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	263,141
Options outstanding, weighted average remaining contractual term	5 years 6 months 14 days
Number of options exercisable (in shares)	263,141
Options exercisable, weighted average remaining contractual term	5 years 6 months 14 days
30.01 - 40.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 30.01
30.01 - 40.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 40.00
40.01 - 60.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	1,148,810
Options outstanding, weighted average remaining contractual term	6 years 3 months 14 days
Number of options exercisable (in shares)	984,817
Options exercisable, weighted average remaining contractual term	6 years 3 months 18 days
40.01 - 60.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 40.01
40.01 - 60.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 60.00
60.01 - 100.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	1,620,734
Options outstanding, weighted average remaining contractual term	8 years 2 months 23 days
Number of options exercisable (in shares)	417,461
Options exercisable, weighted average remaining contractual term	7 years 3 days
60.01 - 100.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 60.01
60.01 - 100.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 100.00
100.01 - 160.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	429,595
Options outstanding, weighted average remaining contractual term	8 years 2 months 15 days
Number of options exercisable (in shares)	114,879
Options exercisable, weighted average remaining contractual term	8 years 21 days
100.01 - 160.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 100.01
100.01 - 160.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 160.00
160.01 - 220.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares)	9,262
Options outstanding, weighted average remaining contractual term	8 years 5 months 1 day
Number of options exercisable (in shares)	7,938
Options exercisable, weighted average remaining contractual term	8 years 5 months 8 days
160.01 - 220.00 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 160.01
160.01 - 220.00 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price (in usd per share)	$ 220.00