Income taxes - Schedule of Components of loss before income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
United States	$ (112,811)	$ (39,968)	$ (30,355)
Foreign	540	1,871	2,720
Loss before income taxes	$ (112,271)	$ (38,097)	$ (27,635)