Prepaid expenses and other current assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid insurance	$ 661	$ 1,419
Prepaid expenses	2,056	1,246
Prepaid taxes	1,754	1,784
Pre-contract costs	48	0
Total prepaid expenses and other current assets	$ 4,519	$ 4,449