Share based compensation - Summary of Share Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	$ 4,924	$ 4,768
2019 EIP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	4,064	3,888
2019 NED EIP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	$ 860	$ 880