Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Aircraft [Abstract]
Aircraft	$ 185,877	$ 184,290
Less: Accumulated depreciation	(38,210)	(25,121)
Aircraft, net	147,667	159,169
Other [Abstract]
Finance lease right-of-use-asset	101	121
Less: Accumulated depreciation	(6,753)	(3,730)
Buildings and equipment, net	36,102	37,442
Total property, plant and equipment, net	183,769	196,611
Leasehold improvements
Other [Abstract]
Property, plant and equipment, gross	35,504	34,824
Buildings
Other [Abstract]
Property, plant and equipment, gross	1,054	1,117
Vehicles and equipment
Other [Abstract]
Property, plant and equipment, gross	5,921	4,870
Capitalized software and development costs
Other [Abstract]
Property, plant and equipment, gross	35	0
Construction-in-progress - Leasehold improvements
Other [Abstract]
Property, plant and equipment, gross	5	5
Licenses
Other [Abstract]
Property, plant and equipment, gross	$ 235	$ 235