Capital Structure - Additional Information (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Mar. 18, 2024	Dec. 31, 2023
Class Of Stock [Line Items]
Preferred stock, par value	$ 0.0001
Common Stock, share Authorized	422,000,000	0	422,000,000
Preferred stock, shares authorized	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	$ 0.0001
Public Warrants [Member]
Class Of Stock [Line Items]
Class of Warrant or Right, Outstanding	2,074,876
Series A warrants [Member]
Class Of Stock [Line Items]
Class of Warrant or Right, Outstanding	3,000,000
Warrants issued to purchase shares of common stock, Exercise price	$ 5
Private Warrants [Member]
Class Of Stock [Line Items]
Class of Warrant or Right, Outstanding	384,000
Class of Warrant, exercisable shares	2,491,776
Warrants issued to purchase shares of common stock, Exercise price	$ 57.5