CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2021
Statement of Partners' Capital [Abstract]
Net of acquired private placement warrant		$ 3,014
Net of issuance cost	$ 818

Business combination and PIPE financing, net of acquired private placement warrant.

No definition available.

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Namespace Prefix:	aeva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration