Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Jan. 13, 2026	Dec. 31, 2025
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 259,009		$ 76,106
Less: accumulated depreciation and amortization	(14,789)		(7,556)
Property and equipment, net	244,220		68,550
Lanteris Space Holdings LLC
Property, Plant and Equipment [Line Items]
Acquired property, plant and equipment	158,600	$ 162,908
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	32,380		336
Vehicles and trailers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	188		146
Computers and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,589		7,931
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,158		3,097
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	96,788		9,632
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	113,906		$ 54,964
Construction in progress | Lanteris Space Holdings LLC
Property, Plant and Equipment [Line Items]
Acquired property, plant and equipment	$ 43,300