<?xml version="1.0" encoding="utf-8"?>
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  xmlns:xlink="http://www.w3.org/1999/xlink">
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      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
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    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001280784</identifier>
        </entity>
        <period>
            <startDate>2025-06-12</startDate>
            <endDate>2025-06-12</endDate>
        </period>
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    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001280784</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2025-06-12</startDate>
            <endDate>2025-06-12</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>
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    <ffd:FormTp contextRef="rc" id="ixv-220">N-2</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-221">424B2</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-222">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:RegnFileNb contextRef="rc" id="ixv-223">333-283735</ffd:RegnFileNb>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-224">0001280784</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-225">Hercules Capital, Inc.</dei:EntityRegistrantName>
    <ffd:FormTp contextRef="rc" id="ixv-250">N-2</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-251">Hercules Capital, Inc.</dei:EntityRegistrantName>
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    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-253">Debt</ffd:OfferingSctyTp>
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      contextRef="offrl_1"
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      id="ixv-256"
      unitRef="Shares">350000000</ffd:AmtSctiesRegd>
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      contextRef="offrl_1"
      decimals="INF"
      id="ixv-257"
      unitRef="USD">346174500.00</ffd:MaxAggtOfferingPric>
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      contextRef="offrl_1"
      decimals="INF"
      id="ixv-258"
      unitRef="pure">0.0001531</ffd:FeeRate>
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      contextRef="offrl_1"
      decimals="INF"
      id="ixv-259"
      unitRef="USD">52999.32</ffd:FeeAmt>
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    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="INF" id="ixv-262" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="INF" id="ixv-263" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="INF" id="ixv-264" unitRef="USD">52999.32</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-265">The registration fee is calculated in accordance with Rule 457(r) of the Securities Act of 1933, as amended. This "Calculation of Filing Fee" table shall be deemed to update the "Calculation of Registration Fee" table in the registrant's Registration Statement on Form N-2 (File No. 333-283735) in accordance with Rules 456(b) and 457(r) under the Securities Act of 1933, as amended.</ffd:OfferingNote>
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