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  xmlns:fnd="http://xbrl.sec.gov/fnd/2026"
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        <entity>
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        <period>
            <startDate>2026-08-27</startDate>
            <endDate>2026-08-27</endDate>
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            <startDate>2026-08-27</startDate>
            <endDate>2026-08-27</endDate>
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    <dei:AmendmentFlag contextRef="AsOf2026-08-27" id="Fact000003">false</dei:AmendmentFlag>
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    <dei:EntityRegistrantName contextRef="AsOf2026-08-27" id="Fact000007">SmartTrust 758</dei:EntityRegistrantName>
    <dei:DocumentPeriodEndDate contextRef="AsOf2026-08-27" id="Fact000008">2026-08-27</dei:DocumentPeriodEndDate>
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      id="Fact000009">The trust seeks to achieve its objective through investment in the common stock of closed-end investment companies, known as closed-end funds. The sponsor selects the closed-end funds that it believes are well positioned to provide for total return potential over the term of the trust within a well-diversified, dividend paying portfolio. To select the portfolio of the trust, the sponsor followed a disciplined process which includes both quantitative screening and qualitative analysis.</fnd:NmRule35d1TermSlctnCritTextBlock>
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