Share capital - Schedule of Stock Options to Purchase Ordinary Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of options
Number of options, outstanding at beginning of year (in shares)	9,220,326
Number of options, granted (in shares)	466,360
Number of options, exercised (in shares)	(1,016,369)
Number of options, forfeited and cancelled (in shares)	(120,995)
Number of options, outstanding at end of year (in shares)	8,549,322	9,220,326
Number of options, exercisable options (in shares)	5,145,149
Weighted average exercise price
Weighted average exercise price, outstanding at beginning of year (in usd per share)	$ 26.21
Weighted average exercise price, granted (in usd per share)	149.96	$ 71.87	$ 50.45
Weighted average exercise price, exercised (in usd per share)	20.81
Weighted average exercise price, forfeited and cancelled (in usd per share)	62.77
Weighted average exercise price, outstanding at end of year (in usd per share)	33.09	$ 26.21
Weighted average exercise price, exercisable options (in usd per share)	$ 19.76
Aggregate intrinsic value
Aggregate intrinsic value, outstanding	$ 394,997
Aggregate intrinsic value, exercisable options	$ 285,295