Assets held for rent - Schedule of Assets Held for Rent (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Shippers placed in service	$ 9,862	$ 9,866
Fixed assets held for rent	6,538	1,468
Accumulated depreciation	(8,813)	(6,272)
Subtotal	7,587	5,062
Shippers and related components in production	3,235	2,651
Total	$ 10,822	$ 7,713