<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="c_offering_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002019435</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <context id="c_offering_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002019435</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
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        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002019435</identifier>
        </entity>
        <period>
            <startDate>2026-10-16</startDate>
            <endDate>2026-10-16</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c_report" id="fee_001">POS AM</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0002019435</dei:EntityCentralIndexKey>
    <ffd:RegnFileNb contextRef="c_report" id="fee_004">333-295618</ffd:RegnFileNb>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_005" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_006">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="c_report" id="fee_007">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_008">F-1</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_009">Blue Gold Ltd</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_010">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_011">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_012">Class A ordinary shares, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_1" id="fee_013">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_1"
      decimals="0"
      id="fee_014"
      unitRef="shares">10112440</ffd:AmtSctiesRegd>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_015"
      unitRef="USD">1.07</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_016"
      unitRef="USD">10820310.80</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_1"
      decimals="INF"
      id="ixv-256"
      unitRef="USD">1494.28</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_2" id="fee_017">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_2" id="fee_018">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_2" id="fee_019">Class A ordinary shares, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_2" id="fee_020">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_2"
      decimals="0"
      id="fee_021"
      unitRef="shares">215299</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_022"
      unitRef="USD">9.7550</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_023"
      unitRef="USD">2100241.75</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_2"
      decimals="INF"
      id="ixv-264"
      unitRef="USD">290.04</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="ixv-265"
      unitRef="USD">12920552.55</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="ixv-266"
      unitRef="USD">1784.32</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="c_report"
      decimals="INF"
      id="ixv-267"
      unitRef="USD">1784.32</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt
      contextRef="c_report"
      decimals="INF"
      id="ixv-268"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="ixv-269"
      unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="ixv-270">A registration fee of $1,784.32 has previously been paid in connection with the initial filing of the Registration Statement (File No. 333-295618), initially filed with the Securities and Exchange Commission on May 7, 2026. Accordingly, no registration fee is being paid with this Post-Effective Amendment No. 1 to the Registration Statement on Form F-1.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_2" id="ixv-271">A registration fee of $1,784.32 has previously been paid in connection with the initial filing of the Registration Statement (File No. 333-295618), initially filed with the Securities and Exchange Commission on May 7, 2026. Accordingly, no registration fee is being paid with this Post-Effective Amendment No. 1 to the Registration Statement on Form F-1.</ffd:OfferingNote>
</xbrl>
