Property and Equipment (Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment	$ 15,605	$ 14,353
Less accumulated depreciation	(2,707)	(1,981)
Property and equipment, net	12,898	12,372
Air Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	11,983	11,983
Laboratory And Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	2,791	1,831
Fixed Assets Not Yet Placed Into Service [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	464	199
Software And Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	169,000	168,000
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	87,000	87,000
Furniture And Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 111	$ 85