Stockholders' equity - Summary of Restricted Stock Units (Details) - Restricted Stock Units (RSUs) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Class Of Stock [Line Items]
Number of Outstanding Shares, Beginning Balance	510,039	975,046
Number of Shares, Granted	45,290	0
Number of Shares, Vested	(433,948)	(446,260)
Number of Shares, forfeited	(22,277)	(18,747)
Number of Outstanding Shares, Ending Balance	99,104	510,039
Weighted Average Grant Date Fair Value, Beginning Balance	$ 18	$ 0
Weighted Average Grant Date Fair Value, Granted	2.35	0
Weighted Average Grant Date Fair Value, Vested	16.37	18
Weighted Average Grant Date Fair Value, Forfeited	18
Weighted Average Grant Date Fair Value, Ending Balance	$ 18	$ 18