<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:ck0001045008="http://www.lfg.com/20260501"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:vip="http://xbrl.sec.gov/vip/2026"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
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    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001045008</identifier>
        </entity>
        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001045008</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0001045008:AmericanFundsISSMALLCAPWorldFundMember</xbrldi:explicitMember>
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        </entity>
        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
        </period>
    </context>
    <context id="c2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001045008</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0001045008:AmericanFundsISEUPACFundMember</xbrldi:explicitMember>
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        </entity>
        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
        </period>
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    <context id="c3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001045008</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0001045008:AmericanFundsISManagedRiskEUPACFundMember</xbrldi:explicitMember>
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        </entity>
        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
        </period>
    </context>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-70">Lincoln Life&#160;&amp; Annuity Variable Annuity Account H</dei:EntityRegistrantName>
    <dei:DocumentPeriodEndDate contextRef="c0" id="ixv-175">2026-05-01</dei:DocumentPeriodEndDate>
    <vip:InvestmentOptionsN4TextBlock contextRef="c0" id="ixv-116">&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 0.25in"&gt;Effective May&#160;1, 2026, the following American Funds Insurance Series&#160;fund
names will be updated as follows:&lt;/p&gt;




&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;




&lt;table cellpadding="0" style="font: 12pt Arial, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse; border-spacing: 0px;"&gt; &lt;tr style="vertical-align: top"&gt; &lt;td style="border-bottom: Black 1pt solid; width: 53%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;&lt;b&gt;FORMER FUND NAME&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; width: 47%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;&lt;b&gt;NEW FUND NAME&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top"&gt; &lt;td style="background-color: rgb(205,205,205); padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS Global Small Capitalization Fund&lt;/span&gt;&lt;/td&gt; &lt;td style="background-color: rgb(205,205,205); padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS SMALLCAP World Fund&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top"&gt; &lt;td style="padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS International Fund&lt;/span&gt;&lt;/td&gt; &lt;td style="padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS EUPAC Fund&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top"&gt; &lt;td style="background-color: rgb(205,205,205); padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS Managed Risk International Fund&lt;/span&gt;&lt;/td&gt; &lt;td style="background-color: rgb(205,205,205); padding-bottom: 8pt; padding-right: 5.4pt; padding-left: 0.25in"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS Managed Risk EUPAC Fund&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt;</vip:InvestmentOptionsN4TextBlock>
    <vip:PortfolioCompanyNameTextBlock contextRef="c1" id="ixv-132">&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS SMALLCAP World Fund&lt;/span&gt;</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyNameTextBlock contextRef="c2" id="ixv-140">&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS EUPAC Fund&lt;/span&gt;</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyNameTextBlock contextRef="c3" id="ixv-148">&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"&gt;American Funds&lt;sup&gt;&#xae;&lt;/sup&gt; IS Managed Risk EUPAC Fund&lt;/span&gt;</vip:PortfolioCompanyNameTextBlock>
    <dei:DocumentType contextRef="c0" id="ixv-178">N-4</dei:DocumentType>
    <dei:EntityInvCompanyType contextRef="c0" id="ixv-179">N-4</dei:EntityInvCompanyType>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-180">0001045008</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="c0" id="ixv-181">false</dei:AmendmentFlag>
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