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Balance Sheet Components - Schedule of Property, Plant and Equipment, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Property, Plant, and Equipment [Line Items]    
Total property, plant and equipment, gross $ 12,378 $ 7,461
Less: accumulated depreciation and amortization (1,300) (897)
Construction in progress and equipment deposits 165,117 35,748
Total property, plant and equipment, net 176,195 42,312
Computers and equipment    
Property, Plant, and Equipment [Line Items]    
Total property, plant and equipment, gross $ 740 366
Computers and equipment | Minimum    
Property, Plant, and Equipment [Line Items]    
Estimates Useful Lives (Years) 3 years  
Computers and equipment | Maximum    
Property, Plant, and Equipment [Line Items]    
Estimates Useful Lives (Years) 7 years  
Furniture, fixtures and machinery    
Property, Plant, and Equipment [Line Items]    
Estimates Useful Lives (Years) 7 years  
Total property, plant and equipment, gross $ 2,796 483
Software    
Property, Plant, and Equipment [Line Items]    
Estimates Useful Lives (Years) 3 years  
Total property, plant and equipment, gross $ 1,405 1,405
Leasehold improvements    
Property, Plant, and Equipment [Line Items]    
Total property, plant and equipment, gross $ 255 62
Land and Building    
Property, Plant, and Equipment [Line Items]    
Estimates Useful Lives (Years) 40 years  
Total property, plant and equipment, gross $ 7,182 $ 5,145