Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Prepaid expenses and other current assets [Abstract]
Prepayments	$ 10,547	$ 10,109
R&D tax credit	5,798	14,250
VAT receivable	3,544	9,249
Other current assets	9,711	3,621
Prepaid expenses and other current assets	$ 29,600	$ 37,229