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Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 216,216 $ 205,831
Less: Accumulated depreciation (47,283) (42,093)
Property and equipment, net 168,933 163,738
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 50,039 47,124
Test stands [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 42,874 42,255
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 54,230 48,999
Land and land improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 5,906 5,123
Construction in progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 32,374 38,654
Furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 4,729 3,359
Computer Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 5,833 5,713
Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,141 1,141
Vehicles [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 501 479
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 18,589 $ 12,984