Share Option Plans and ESPP - Schedule of Stock Option Plan (Details)	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Number of options
Number of options, beginning outstanding (in shares) | shares	9,220,326
Number of options, granted (in shares) | shares	425,339
Number of options, exercised (in shares) | shares	(918,859)
Number of options, forfeited and canceled (in shares) | shares	(101,320)
Number of options, ending outstanding (in shares) | shares	8,625,486
Number of options, exercisable options (in shares) | shares	5,153,158
Weighted average exercise price
Weighted average exercise price, beginning outstanding (in usd per share) | $ / shares	$ 26.21
Weighted average exercise price, granted (in usd per share) | $ / shares	154.03
Weighted average exercise price, exercised (in usd per share) | $ / shares	21.54
Weighted average exercise price, forfeited and canceled (in usd per share) | $ / shares	60.64
Weighted average exercise price, ending outstanding (in usd per share) | $ / shares	32.61
Weighted average exercise price, exercisable options (in usd per share) | $ / shares	$ 19.35