v3.26.1
Capital Structure - Additional Information (Details) - $ / shares
 12 Months Ended
Dec. 31, 2025
Jun. 30, 2026
Class Of Stock [Line Items]    
Common stock, shares authorized 422,000,000 422,000,000
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Pre-combination Aeva preferred stock outstanding 0 0
Common stock, par value $ 0.0001 $ 0.0001
Public Warrants [Member]    
Class Of Stock [Line Items]    
Class of Warrant or Right, Outstanding 12,074,876  
Private Warrants [Member]    
Class Of Stock [Line Items]    
Class of Warrant or Right, Outstanding 384,000  
Class of Warrant, Exercisable Shares 2,491,776  
A Series Warrants [Member]    
Class Of Stock [Line Items]    
Warrants issued to purchase shares of common stock, Exercise price   $ 5
Class of Warrant or Right, Outstanding   3,000,000