<?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="bkv-20251231.xsd" xlink:type="simple"/>
    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001838406</identifier>
        </entity>
        <period>
            <startDate>2025-01-01</startDate>
            <endDate>2025-12-31</endDate>
        </period>
    </context>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-66">BKV Corporation</dei:EntityRegistrantName>
    <ecd:InsiderTrdPoliciesProcAdoptedFlag contextRef="c0" id="ixv-3954">true</ecd:InsiderTrdPoliciesProcAdoptedFlag>
    <ecd:AwardTmgMnpiDiscTextBlock contextRef="c0" id="ixv-6901">&lt;div style="margin-top:8pt; width:480pt; line-height:11.5pt;"&gt; &lt;span style="letter-spacing:-0.06pt;"&gt;Stock options have not been a part of our executive compensation program. We therefore (i)&#160;do not grant, and have not granted, stock options in anticipation of the release of material nonpublic information, (ii)&#160;do not time, and have not timed, the release of material nonpublic information based on stock option grant dates or for the purpose of affecting the value of executive compensation and (iii)&#160;do not take, and have not taken, material nonpublic information into account when determining the timing and terms of stock options. As stock options are not an element of employee compensation, we do not have a formal policy with respect to the timing of stock option grants, and we did not grant stock options or stock appreciation rights in 2025.&lt;/span&gt;&lt;span style="font-family:Times New Roman, Times, serif ;letter-spacing:0.16pt;"&gt; &lt;/span&gt; &lt;/div&gt;</ecd:AwardTmgMnpiDiscTextBlock>
    <ecd:AwardTmgHowMnpiCnsdrdTextBlock contextRef="c0" id="ixv-7984">We therefore (i)&#160;do not grant, and have not granted, stock options in anticipation of the release of material nonpublic information, (ii)&#160;do not time, and have not timed, the release of material nonpublic information based on stock option grant dates or for the purpose of affecting the value of executive compensation and (iii)&#160;do not take, and have not taken, material nonpublic information into account when determining the timing and terms of stock options.</ecd:AwardTmgHowMnpiCnsdrdTextBlock>
    <ecd:MnpiDiscTimedForCompValFlag contextRef="c0" id="ixv-7985">false</ecd:MnpiDiscTimedForCompValFlag>
    <ecd:AwardTmgMnpiCnsdrdFlag contextRef="c0" id="ixv-7986">false</ecd:AwardTmgMnpiCnsdrdFlag>
    <ecd:AwardTmgMethodTextBlock contextRef="c0" id="ixv-7987">we do not have a formal policy with respect to the timing of stock option grants, and we did not grant stock options or stock appreciation rights in 2025.</ecd:AwardTmgMethodTextBlock>
    <dei:DocumentType contextRef="c0" id="hidden-fact-0">DEF 14A</dei:DocumentType>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-7991">0001838406</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="c0" id="ixv-7992">false</dei:AmendmentFlag>
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