<?xml version="1.0" encoding="utf-8"?>
<xbrl
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  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2026"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
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  xmlns:xlink="http://www.w3.org/1999/xlink"
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    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
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    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001851003</identifier>
        </entity>
        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001851003</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        </entity>
        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <context id="offrl_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001851003</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
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        </entity>
        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-369">S-3</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-370">424B5</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-371">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:RegnFileNb contextRef="rc" id="ixv-372">333-281929</ffd:RegnFileNb>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-373">0001851003</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-374">Zeta Global Holdings Corp.</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="rc" id="hiddenrcCombinedProspectusTableNa">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="rc" id="ixv-411">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-412">Zeta Global Holdings Corp.</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-413">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-414">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-415">Class A common stock, par value $0.001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="offrl_1" id="ixv-416">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_1"
      decimals="0"
      id="ixv-417"
      unitRef="Shares">287711</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="offrl_1"
      decimals="3"
      id="ixv-418"
      unitRef="USD">32.205</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_1"
      decimals="2"
      id="ixv-419"
      unitRef="USD">9265732.75</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="6"
      id="ixv-420"
      unitRef="pure">0.000087</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_1"
      decimals="2"
      id="ixv-421"
      unitRef="USD">806.12</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="offrl_2" id="ixv-422">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-423">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-424">Class A common stock, par value $0.001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="offrl_2" id="ixv-425">true</ffd:Rule457oFlg>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_2"
      decimals="2"
      id="ixv-426"
      unitRef="USD">1250000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="6"
      id="ixv-427"
      unitRef="pure">0.000087</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_2"
      decimals="2"
      id="ixv-428"
      unitRef="USD">108.75</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-429" unitRef="USD">10515732.75</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-430" unitRef="USD">914.87</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-431" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-432" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-433" unitRef="USD">914.87</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-434">Estimated in accordance with Rule 457(c) under the Securities Act solely for the purpose of calculating the registration fee. The proposed maximum offering price per share is based upon the average of the high and low prices per share of the Registrant's Class A common stock as reported on the New York Stock Exchange on October 15, 2026.
The registration fee is calculated in accordance with Rule 457(r) under the Securities Act and represents deferred payment of the registration fees in connection with the Registrant's Registration Statement on Form S-3 (Reg. No. 333-281929).
Represents shares of Class A common stock that may be offered and sold by the selling stockholders.
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-435">The registration fee is calculated in accordance with Rule 457(r) under the Securities Act and represents deferred payment of the registration fees in connection with the Registrant's Registration Statement on Form S-3 (Reg. No. 333-281929).</ffd:OfferingNote>
    <ffd:NrrtvMaxAggtAmt contextRef="rc" decimals="2" id="ixv-436" unitRef="Shares">10515732.75</ffd:NrrtvMaxAggtAmt>
    <ffd:FnlPrspctsFlg contextRef="rc" id="ixv-437">true</ffd:FnlPrspctsFlg>
</xbrl>
