Stock-based compensation - Summary of RSU activity (Details) - Time-based RSUs	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Shares
Outstanding, beginning balance (in shares) | shares	0
Granted (in shares) | shares	824,600
Vested (in shares) | shares	0
Forfeited (in shares) | shares	(68,640)
Outstanding, ending balance (in shares) | shares	755,960
Weighted-Average Grant Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 0
Granted (in dollars per share) | $ / shares	5.37
Vested (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	5.67
Outstanding, ending balance (in dollars per share) | $ / shares	$ 5.35