<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:oef="http://xbrl.sec.gov/oef/2026"
  xmlns:qtup="http://defianceetfs.com/20261023"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="qtup-20261023.xsd" xlink:type="simple"/>
    <context id="AsOf2026-10-23">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001924868</identifier>
        </entity>
        <period>
            <startDate>2026-10-23</startDate>
            <endDate>2026-10-23</endDate>
        </period>
    </context>
    <context id="From2026-10-232026-10-23_custom_S000100128Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001924868</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">qtup:S000100128Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-23</startDate>
            <endDate>2026-10-23</endDate>
        </period>
    </context>
    <context id="From2026-10-232026-10-23_custom_S000100128Member_custom_PrivatelyPlacedSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001924868</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">qtup:S000100128Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">qtup:PrivatelyPlacedSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-23</startDate>
            <endDate>2026-10-23</endDate>
        </period>
    </context>
    <context id="From2026-10-232026-10-23_custom_S000100128Member_custom_IPORiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001924868</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">qtup:S000100128Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">qtup:IPORiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-23</startDate>
            <endDate>2026-10-23</endDate>
        </period>
    </context>
    <context id="From2026-10-232026-10-23_custom_S000100128Member_custom_ValuationRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001924868</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">qtup:S000100128Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">qtup:ValuationRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-23</startDate>
            <endDate>2026-10-23</endDate>
        </period>
    </context>
    <dei:AmendmentFlag contextRef="AsOf2026-10-23" id="Fact000003">false</dei:AmendmentFlag>
    <dei:EntityRegistrantName contextRef="AsOf2026-10-23" id="Fact000004">Tidal Trust II</dei:EntityRegistrantName>
    <dei:EntityInvCompanyType contextRef="AsOf2026-10-23" id="Fact000005">N-1A</dei:EntityInvCompanyType>
    <dei:EntityCentralIndexKey contextRef="AsOf2026-10-23" id="Fact000006">0001924868</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="AsOf2026-10-23" id="Fact000012">497</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="AsOf2026-10-23" id="Fact000013">2026-10-23</dei:DocumentPeriodEndDate>
    <oef:ProspectusDate contextRef="AsOf2026-10-23" id="Fact000014">2026-01-05</oef:ProspectusDate>
    <oef:StrategyNarrativeTextBlock
      contextRef="From2026-10-232026-10-23_custom_S000100128Member"
      id="Fact000015">&lt;p id="xdx_A89_eoef--StrategyNarrativeTextBlock_zI7sFnggfeH7" style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Effective immediately, in the section of the Summary
Prospectus and Prospectus titled &#x201c;Principal Investment Strategies &#x2013; Fund Attributes,&#x201d; the following disclosure is added
to the Fund&#x2019;s principal investment strategy disclosures:&lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 31.5pt 0 0.5in; text-align: justify"&gt;The Fund may invest up to 15% of its
net assets in private companies.&lt;/p&gt;

</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="From2026-10-232026-10-23_custom_S000100128Member_custom_PrivatelyPlacedSecuritiesRiskMember"
      id="Fact000016">&lt;p id="xdx_A8A_eoef--RiskTextBlock_hoef--RiskAxis__custom--PrivatelyPlacedSecuritiesRiskMember_z8GOm0PyH5V4" style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Effective immediately, in the section of the Summary
Prospectus and Prospectus titled &#x201c;Principal Investment Risks,&#x201d; and the section of the Prospectus titled &#x201c;Principal Risks
of Investing in the Fund,&#x201d; the following disclosure is added after Operational Risk: &lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.5in 12pt; text-align: justify"&gt;&lt;b&gt;Privately Placed Securities Risk.&lt;/b&gt;&#160;The Fund may invest
in non-exchange traded, privately placed securities, including privately placed securities issued by special purpose vehicles, which are
subject to liquidity and valuation risks. These risks may make it difficult for those securities to be traded or valued, especially in
the event of adverse economic and liquidity conditions or adverse changes in the issuer&#x2019;s financial condition. The market for certain
non-exchange traded securities may be limited to institutional investors, subjecting such investments to further liquidity risk if a market
were to limit institutional trading. Compared to public companies, private companies may have a more limited management group and limited
operating histories with narrower, less established product lines and smaller market shares, which may cause them to be more vulnerable
to competitors&#x2019; actions, market conditions and consumer sentiment with respect to their products or services, as well as general
economic downturns. In addition, private companies may have limited financial resources and may be unable to meet their obligations. There
may also be less information available regarding such non-exchange traded securities than for publicly traded securities, which may make
it more difficult for the Adviser to fully evaluate the risks of investing in such securities and as a result place the Fund&#x2019;s assets
at greater risk of loss than if the Adviser had more complete information. In addition, the issuers of non-exchange traded securities
may be distressed, insolvent, or delinquent in filing information needed to be listed on an exchange. Disposing of nonexchange traded
securities, including privately placed securities, may involve time-consuming negotiation and legal expenses, and selling them promptly
at an acceptable price may be difficult or impossible. Securities purchased in private placements may be subject to legal or contractual
restrictions on resale. The Fund may have to bear the expense of registering restricted securities for resale and the risk of substantial
delay in effecting registration. These companies may not ever issue shares in an IPO and a liquid market for their shares may never develop,
which could adversely affect the Fund&#x2019;s liquidity. If the company does issue shares in an initial public offering (&#x201c;IPO&#x201d;), IPOs are risky and volatile and may
cause the value of the Fund&#x2019;s investment to decrease significantly.&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="From2026-10-232026-10-23_custom_S000100128Member_custom_IPORiskMember"
      id="Fact000017">&lt;p id="xdx_A8F_eoef--RiskTextBlock_hoef--RiskAxis__custom--IPORiskMember_zonz4XGrFzp" style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Effective immediately, in the section of the Summary Prospectus and
Prospectus titled &#x201c;Principal Investment Risks,&#x201d; and the section of the Prospectus titled &#x201c;Principal Risks of Investing
in the Fund,&#x201d; the following disclosure is added after Inflation Risk: &lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.5in 12pt; text-align: justify"&gt;&lt;b&gt;IPO Risk.&lt;/b&gt; Securities issued in IPOs have no trading history,
and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may
be highly volatile. At any particular time or from time to time, the Fund may not be able to invest in securities issued in IPOs, or invest
to the extent desired, because, for example, only a small portion (if any) of the securities being offered in an IPO may be available
to the Fund. In addition, as the Fund increases in size, the impact of IPOs on the Fund&#x2019;s performance will generally decrease.&#160;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="From2026-10-232026-10-23_custom_S000100128Member_custom_ValuationRiskMember"
      id="Fact000018">&lt;p id="xdx_A80_eoef--RiskTextBlock_hoef--RiskAxis__custom--ValuationRiskMember_zlHRUrLfpGf7" style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Effective immediately, in the section of the Summary Prospectus and
Prospectus titled &#x201c;Principal Investment Risks,&#x201d; and the section of the Prospectus titled &#x201c;Principal Risks of Investing
in the Fund,&#x201d; the following disclosure is added after U.S. Government and U.S. Agency Obligations Risk: &lt;/i&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.5in; text-align: justify"&gt;&lt;b&gt;Valuation Risk. &lt;/b&gt;Independent market quotations
for certain investments held by the Fund may not be readily available, and such investments may be fair valued or valued by a pricing
service at an evaluated price. These valuations involve subjectivity and different market participants may assign different prices to
the same investment. As a result, there is a risk that the Fund may not be able to sell an investment at the price assigned to the investment
by the Fund. Such differences could be significant, particularly for illiquid securities and securities that trade in relatively thin
markets and/or markets that experience extreme volatility. In addition, the securities in which the Fund invests may trade on days that
the Fund does not price its shares; as a result, the value of Fund shares may change on days when investors cannot purchase or sell their
Fund holdings.&lt;/p&gt;

</oef:RiskTextBlock>
</xbrl>
