<?xml version="1.0" encoding="utf-8"?>
<xbrl
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  xmlns:ffd="http://xbrl.sec.gov/ffd/2025q4"
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      xlink:href="https://xbrl.sec.gov/ffd/2025q4/ffd-2025q4.xsd"
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    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001614178</identifier>
        </entity>
        <period>
            <startDate>2026-03-09</startDate>
            <endDate>2026-03-09</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001614178</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-03-09</startDate>
            <endDate>2026-03-09</endDate>
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    </context>
    <context id="offrl_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001614178</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
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        <period>
            <startDate>2026-03-09</startDate>
            <endDate>2026-03-09</endDate>
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    <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-189">S-8</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-190">S-8</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-191">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-192">0001614178</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-193">Yext, Inc.</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
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    <ffd:FormTp contextRef="rc" id="ixv-231">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-232">Yext, Inc.</dei:EntityRegistrantName>
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    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-234">Common Stock, $0.001 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_1" id="ixv-235">true</ffd:FeesOthrRuleFlg>
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      contextRef="offrl_1"
      decimals="0"
      id="ixv-236"
      unitRef="Shares">4917321</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="offrl_1"
      decimals="3"
      id="ixv-237"
      unitRef="USD">5.535</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_1"
      decimals="2"
      id="ixv-238"
      unitRef="USD">27217371.73</ffd:MaxAggtOfferingPric>
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      contextRef="offrl_1"
      decimals="7"
      id="ixv-239"
      unitRef="pure">0.0001381</ffd:FeeRate>
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      contextRef="offrl_1"
      decimals="2"
      id="ixv-240"
      unitRef="USD">3758.72</ffd:FeeAmt>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-241">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-242">Common Stock, $0.001 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_2" id="ixv-243">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_2"
      decimals="0"
      id="ixv-244"
      unitRef="Shares">1229330</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="offrl_2"
      decimals="2"
      id="ixv-245"
      unitRef="USD">4.71</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_2"
      decimals="2"
      id="ixv-246"
      unitRef="USD">5790144.30</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="7"
      id="ixv-247"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_2"
      decimals="2"
      id="ixv-248"
      unitRef="USD">799.62</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-249" unitRef="USD">33007516.03</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-250" unitRef="USD">4558.34</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-251" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-252" unitRef="USD">4558.34</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-253">"Amount Registered" represents shares of Common Stock reserved for issuance pursuant to the Registrant's 2016 Equity Incentive Plan. Pursuant to Rule 416(a) of the Securities Act of 1933, as amended (the "Securities Act"), this Registration Statement shall also cover any additional shares of the Registrant's Common Stock that become issuable under the 2016 Equity Incentive Plan by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without receipt of consideration that increases the number of the Registrant's outstanding shares of Common Stock. "Proposed Maximum Offering Price Per Unit" was estimated in accordance with Rule 457(h) under the Securities Act of 1933, as amended, solely for the purpose of calculating the registration fee on the basis of $5.535 per share, which represents the average of the high and low prices of the Registrant's Common Stock as reported on the New York Stock Exchange on March 6, 2026.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-254">"Amount Registered" represents shares of Common Stock reserved for issuance pursuant to the Registrant's 2017 Employee Stock Purchase Plan. Pursuant to Rule 416(a) of the Securities Act, this Registration Statement shall also cover any additional shares of the Registrant's Common Stock that become issuable under the 2017 Employee Stock Purchase Plan by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without receipt of consideration that increases the number of the Registrant's outstanding shares of Common Stock. "Proposed Maximum Offering Price Per Unit" was estimated in accordance with Rule 457(h) under the Securities Act solely for the purpose of calculating the registration fee on the basis of eighty-five percent (85%) of $5.535 per share, which represents the average of the high and low prices of the Registrant's Common Stock as reported on the New York Stock Exchange on March 6, 2026, rounded up to the nearest whole cent. Pursuant to the 2017 Employee Stock Purchase Plan, the purchase price of the shares of Common Stock reserved for issuance thereunder will be 85% of the lower of the fair market value per share on the first trading day of the applicable offering period or the fair market value per share on the last trading day of the applicable offering period</ffd:OfferingNote>
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