Stock-based compensation - Schedule of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of options, Outstanding, Beginning balance | shares	9,924,878
Number of options, Granted | shares	2,639,100
Number of options, Exercised | shares	(76,044)
Number of options, Forfeited | shares	(140,987)
Number of options, Outstanding, Ending balance | shares	12,346,947
Number of options, Exercisable | shares	5,412,030
Number of options, Expected to vest | shares	6,934,917	[1]
Weighted average exercise price, Beginning balance | $ / shares	$ 16.98
Weighted average exercise price, Granted | $ / shares	12.76
Weighted average exercise price, Exercised | $ / shares	3.95
Weighted average exercise price, Forfeited | $ / shares	22.03
Weighted average exercise price, Ending balance | $ / shares	16.1
Weighted average exercise price, Exercisable | $ / shares	13.77
Weighted average exercise price, Expected to vest | $ / shares	$ 17.91	[1]
Weighted average remaining contractual life (in years), Outstanding	8 years 1 month 6 days
Weighted average remaining contractual life (in years), Exercisable	6 years 10 months 24 days
Weighted average remaining contractual life (in years), Expected to vest	9 years	[1]
Aggregate intrinsic value, Outstanding | $	$ 34,374	[2]
Aggregate intrinsic value, Exercisable | $	28,776	[2]
Aggregate intrinsic value, Expected to vest | $	$ 5,598	[1],[2]

[1] This represents the number of unvested options outstanding as of March 31, 2024 that are expected to vest in the future.

[2] The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying options and the fair value of the common stock for the options that were in the money as of March 31, 2024.