<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ecd="http://xbrl.sec.gov/ecd/2025"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="sclx-20251231.xsd" xlink:type="simple"/>
    <context id="P01_01_2025To12_31_2025">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001820190</identifier>
        </entity>
        <period>
            <startDate>2025-01-01</startDate>
            <endDate>2025-12-31</endDate>
        </period>
    </context>
    <dei:DocumentType contextRef="P01_01_2025To12_31_2025" id="hidden164705905">DEF 14A</dei:DocumentType>
    <dei:AmendmentFlag contextRef="P01_01_2025To12_31_2025" id="ixv-5883">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="P01_01_2025To12_31_2025" id="ixv-5884">0001820190</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="P01_01_2025To12_31_2025" id="ixv-5894">SCILEX HOLDING COMPANY</dei:EntityRegistrantName>
    <ecd:InsiderTrdPoliciesProcAdoptedFlag contextRef="P01_01_2025To12_31_2025" id="ixv-5898">true</ecd:InsiderTrdPoliciesProcAdoptedFlag>
    <ecd:AwardTmgMnpiDiscTextBlock contextRef="P01_01_2025To12_31_2025" id="ixv-3619">&lt;div style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"&gt;In accordance with Item 402(x) of Regulation &lt;div style="white-space:nowrap;display:inline;"&gt;S-K&lt;/div&gt; under the Securities Act, we are providing information regarding our procedures related to the grant of certain equity awards close in time to the release of material &lt;div style="white-space:nowrap;display:inline;"&gt;non-public&lt;/div&gt; information (&#x201c;MNPI&#x201d;). We generally grant equity awards annually, and any such equity awards granted are recommended by the Compensation Committee and approved by our Board on or before the grant date. We do not grant equity awards in anticipation of the release of material &lt;div style="white-space:nowrap;display:inline;"&gt;non-public&lt;/div&gt; information and do not time, and do not plan to time, the release of material &lt;div style="white-space:nowrap;display:inline;"&gt;non-public&lt;/div&gt; information in coordination with grants of equity awards in a manner that intentionally affects the value of executive compensation. Additionally, our Insider Trading Policy prohibits directors, officers and employees from trading our securities while in possession of or on the basis of MNPI about us. We have not timed, and do not plan to time, the disclosure of MNPI for the purpose of affecting the value of executive compensation. &lt;/div&gt;&lt;div style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"&gt;In the year ended December&#160;31, 2025, no options were granted to our named executive officers within four business days prior to, or one business day following, the filing or furnishing of a periodic or current report by us that disclosed MNPI.&lt;div style="font-weight:bold;display:inline;"&gt; &lt;/div&gt; &lt;/div&gt;</ecd:AwardTmgMnpiDiscTextBlock>
    <ecd:AwardTmgHowMnpiCnsdrdTextBlock contextRef="P01_01_2025To12_31_2025" id="ixv-3623">We do not grant equity awards in anticipation of the release of material &lt;div style="white-space:nowrap;display:inline;"&gt;non-public&lt;/div&gt; information</ecd:AwardTmgHowMnpiCnsdrdTextBlock>
    <ecd:MnpiDiscTimedForCompValFlag contextRef="P01_01_2025To12_31_2025" id="ixv-5902">false</ecd:MnpiDiscTimedForCompValFlag>
    <ecd:AwardTmgMnpiCnsdrdFlag contextRef="P01_01_2025To12_31_2025" id="ixv-5903">true</ecd:AwardTmgMnpiCnsdrdFlag>
</xbrl>
