Income taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 1,072	$ 343	$ 212
Additions for tax positions of prior years	224	729	343
Settlements with taxing authorities	(60)	0	(212)
Ending Balance	$ 1,236	$ 1,072	$ 343