Stock-based compensation - Summary of Restricted Stock Units (Details) - Restricted stock units shares in Thousands	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Shares (in thousands)
Unvested balance at beginning of period (in shares) | shares	4,207
Granted (in shares) | shares	2,177
Vested (in shares) | shares	(785)
Forfeited (in shares) | shares	(205)
Unvested balance at end of period (in shares) | shares	5,394
Weighted- average grant date fair value
Unvested balance at beginning of period (in dollars per share) | $ / shares	$ 6.08
Granted (in dollars per share) | $ / shares	1.56
Vested (in dollars per share) | $ / shares	7.14
Forfeited (in dollars per share) | $ / shares	4.41
Unvested balance at end of period (in dollars per share) | $ / shares	$ 4.16