Flight equipment subject to operating lease - Schedule of Flight Equipment Subject to Operating Lease (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Movement in Property, Plant and Equipment [Roll Forward]
Depreciation	$ (277,260)	$ (259,680)
Flight equipment subject to operating leases reclassified to flight equipment held for sale	(276,094)	(80,036)
Flight equipment subject to operating leases reclassified to investment in sales-type lease	(33,629)	$ 0
Flight Equipment
Movement in Property, Plant and Equipment [Roll Forward]
Net book value, beginning balance	26,231,208
Purchase of aircraft	900,278
Depreciation	(277,260)
Flight equipment subject to operating leases reclassified to flight equipment held for sale	(276,094)
Flight equipment subject to operating leases reclassified to investment in sales-type lease	(33,629)
Net book value, ending balance	26,544,503
Accumulated depreciation	$ (5,729,380)