Income taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 1,636	$ 1,272	$ 1,003
Additions based on tax positions related to the current year	303	312	230
Additions based on tax positions related to prior years	29	52	39
Unrecognized tax benefits, ending balance	$ 1,968	$ 1,636	$ 1,272