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    <ffd:SubmissnTp contextRef="rc" id="ixv-424">S-3ASR</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-425">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-426">0001789029</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-427">Aeva Technologies, Inc.</dei:EntityRegistrantName>
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    <ffd:FormTp contextRef="rc" id="ixv-491">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-492">Aeva Technologies, Inc.</dei:EntityRegistrantName>
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    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-494">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-495">Common Stock, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_1" id="ixv-496">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="7"
      id="ixv-497"
      unitRef="pure">0.0001381</ffd:FeeRate>
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    <ffd:FeeRate
      contextRef="offrl_2"
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      id="ixv-502"
      unitRef="pure">0.0001381</ffd:FeeRate>
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      contextRef="offrl_3"
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      id="ixv-507"
      unitRef="pure">0.0001381</ffd:FeeRate>
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    <ffd:OfferingSctyTp contextRef="offrl_4" id="ixv-509">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_4" id="ixv-510">Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_4" id="ixv-511">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_4"
      decimals="7"
      id="ixv-512"
      unitRef="pure">0.0001381</ffd:FeeRate>
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    <ffd:OfferingSctyTitl contextRef="offrl_5" id="ixv-515">Common Stock, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_5" id="ixv-516">true</ffd:Rule457rFlg>
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      contextRef="offrl_5"
      decimals="0"
      id="ixv-517"
      unitRef="Shares">3509719</ffd:AmtSctiesRegd>
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      contextRef="offrl_5"
      decimals="2"
      id="ixv-518"
      unitRef="USD">27.15</ffd:MaxOfferingPricPerScty>
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      contextRef="offrl_5"
      decimals="2"
      id="ixv-519"
      unitRef="USD">95288870.85</ffd:MaxAggtOfferingPric>
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      contextRef="offrl_5"
      decimals="7"
      id="ixv-520"
      unitRef="pure">0.0001381</ffd:FeeRate>
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      contextRef="offrl_5"
      decimals="2"
      id="ixv-521"
      unitRef="USD">13159.39</ffd:FeeAmt>
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    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-525" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-526" unitRef="USD">13159.39</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-527">The registrant is relying on Rule 456(b) and Rule 457(r) under the Securities Act of 1933, as amended (the "Securities Act"), to defer payment of all of the registration fee. In connection with the securities offered hereby, the registrant will pay "pay-as-you-go registration fees" in accordance with Rule 456(b). The registrant will calculate the registration fee applicable to an offer of securities pursuant to this registration statement based on the fee payment rate in effect on the date of such fee payment. An indeterminate number of the securities of each identified class are being registered as may from time to time be offered at indeterminate prices, including an indeterminate number or amount of securities that may be issued upon settlement, exercise, conversion or exchange of securities offered hereunder, or pursuant to anti-dilution provisions. Separate consideration may or may not be received for securities that are issuable upon settlement, exercise, conversion or exchange of other securities or that are issued in units.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-528">See Offering Note 1 above.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_3" id="ixv-529">See Offering Note 1 above.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_4" id="ixv-530">See Offering Note 1 above. In addition, the warrants covered by this registration statement may be warrants to purchase common stock, preferred stock or debt securities of the registrant.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_5" id="ixv-531">See Offering Note 1 above. Consists of up to 3,509,719 shares of common stock being registered for resale by the selling stockholder named in the prospectus included in this registration statement. Pursuant to Rule 457(c) under the Securities Act, and solely for the purpose of calculating the registration fee, the proposed maximum offering price per share is $27.15, which is the average of the high and low prices of the Common Stock on May 29, 2026 on the Nasdaq Global Select Market.</ffd:OfferingNote>
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