Capital Structure - Additional Information (Details) - $ / shares	Jun. 30, 2024	Mar. 18, 2024	Dec. 31, 2023
Class Of Stock [Line Items]
Common stock, shares authorized	422,000,000	0	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 or Stated Value Per Share	$ 0.0001	$ 0.0001	$ 0.0001
Public Warrants [Member]
Class Of Stock [Line Items]
Class of Warrant or Right, Outstanding	2,414,976
Private Warrants [Member]
Class Of Stock [Line Items]
Common Stock, Par or Stated Value Per Share	$ 57.50
Class of Warrant or Right, Outstanding	76,800
A Series Warrants [Member]
Class Of Stock [Line Items]
Common Stock, Par or Stated Value Per Share	$ 5
Class of Warrant or Right, Outstanding	3,000,000