Subsequent Events	12 Months Ended
Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Note 17. Subsequent Events On March 11, 2024, the Company issued a press release announcing that the Board of Directors of the Company has determined to set a reverse stock split ratio of 1-for-5 for a reverse stock split of the Company’s outstanding shares of common stock. The Company anticipates the reverse stock split to be effective as of March 18, 2024 at approximately 4:01 p.m. Eastern Time. The Company’s common stock will continue trading on the New York Stock Exchange under the existing symbol (AEVA) and will begin trading on a split-adjusted basis when the market opens on March 19, 2024, with the new CUSIP number 00835Q202. Following this proposed Reverse Stock Split, the Company’s issued and outstanding shares of common stock will decrease from approximately 263.8 million pre-split shares to 52.8 million post-split shares, subject to adjustment for fractional shares. Proportionate adjustments will be made to the number of shares of common stock underlying the Company’s outstanding equity awards, warrants, the number of shares issuable under its equity incentive plans and other existing agreements, as well as the exercise or conversion price, as applicable. This proposed reverse stock split will result in proportionate adjustment to the basic and diluted earnings per share. The reverse stock split will not affect the number of authorized shares of common stock or the par value of the common stock.

Subsequent Events

12 Months Ended

Dec. 31, 2023

Note 17. Subsequent Events

On March 11, 2024, the Company issued a press release announcing that the Board of Directors of the Company has determined to set a reverse stock split ratio of 1-for-5 for a reverse stock split of the Company’s outstanding shares of common stock. The Company anticipates the reverse stock split to be effective as of March 18, 2024 at approximately 4:01 p.m. Eastern Time. The Company’s common stock will continue trading on the New York Stock Exchange under the existing symbol (AEVA) and will begin trading on a split-adjusted basis when the market opens on March 19, 2024, with the new CUSIP number 00835Q202. Following this proposed Reverse Stock Split, the Company’s issued and outstanding shares of common stock will decrease from approximately 263.8 million pre-split shares to 52.8 million post-split shares, subject to adjustment for fractional shares. Proportionate adjustments will be made to the number of shares of common stock underlying the Company’s outstanding equity awards, warrants, the number of shares issuable under its equity incentive plans and other existing agreements, as well as the exercise or conversion price, as applicable. This proposed reverse stock split will result in proportionate adjustment to the basic and diluted earnings per share. The reverse stock split will not affect the number of authorized shares of common stock or the par value of the common stock.