<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:TDACU="http://translational-development.com/20260527"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="tdacu-20260527.xsd" xlink:type="simple"/>
    <context id="AsOf2026-05-27">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001926599</identifier>
        </entity>
        <period>
            <startDate>2026-05-27</startDate>
            <endDate>2026-05-27</endDate>
        </period>
    </context>
    <context id="From2026-05-272026-05-27_custom_UnitsEachConsistingOfOneClassaOrdinaryShare0.0001ParValueAndOnehalfOfOneRedeemableWarrantMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001926599</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">TDACU:UnitsEachConsistingOfOneClassaOrdinaryShare0.0001ParValueAndOnehalfOfOneRedeemableWarrantMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-27</startDate>
            <endDate>2026-05-27</endDate>
        </period>
    </context>
    <context id="From2026-05-272026-05-27_custom_ClassaOrdinaryShares0.0001ParValuePerShareMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001926599</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">TDACU:ClassaOrdinaryShares0.0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-27</startDate>
            <endDate>2026-05-27</endDate>
        </period>
    </context>
    <context id="From2026-05-272026-05-27_custom_RedeemableWarrantsIncludedAsPartOfUnitsEachWholeWarrantExercisableForOneClassaOrdinaryShareAtExercisePriceOf11.50Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001926599</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">TDACU:RedeemableWarrantsIncludedAsPartOfUnitsEachWholeWarrantExercisableForOneClassaOrdinaryShareAtExercisePriceOf11.50Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-27</startDate>
            <endDate>2026-05-27</endDate>
        </period>
    </context>
    <dei:AmendmentFlag contextRef="AsOf2026-05-27" id="Fact000003">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="AsOf2026-05-27" id="Fact000004">0001926599</dei:EntityCentralIndexKey>
    <dei:EntityTaxIdentificationNumber contextRef="AsOf2026-05-27" id="xdx2ixbrl0015">00-0000000</dei:EntityTaxIdentificationNumber>
    <dei:DocumentType contextRef="AsOf2026-05-27" id="Fact000010">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="AsOf2026-05-27" id="Fact000011">2026-05-27</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="AsOf2026-05-27" id="Fact000012">TRANSLATIONAL DEVELOPMENT ACQUISITION CORP.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="AsOf2026-05-27" id="Fact000013">E9</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="AsOf2026-05-27" id="Fact000014">001-42451</dei:EntityFileNumber>
    <dei:EntityAddressAddressLine1 contextRef="AsOf2026-05-27" id="Fact000016">52 E. 83rd Street,</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="AsOf2026-05-27" id="Fact000017">New York</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="AsOf2026-05-27" id="Fact000018">NY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="AsOf2026-05-27" id="Fact000019">10028</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="AsOf2026-05-27" id="Fact000020">917</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="AsOf2026-05-27" id="Fact000021">979-3072</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="AsOf2026-05-27" id="Fact000022">true</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="AsOf2026-05-27" id="Fact000023">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="AsOf2026-05-27" id="Fact000024">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="AsOf2026-05-27" id="Fact000025">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="From2026-05-272026-05-27_custom_UnitsEachConsistingOfOneClassaOrdinaryShare0.0001ParValueAndOnehalfOfOneRedeemableWarrantMember"
      id="Fact000026">Units,     each consisting of one Class&#160;A ordinary share, $0.0001 par value, and one-half of one redeemable warrant</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-272026-05-27_custom_UnitsEachConsistingOfOneClassaOrdinaryShare0.0001ParValueAndOnehalfOfOneRedeemableWarrantMember"
      id="Fact000027">TDACU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-272026-05-27_custom_UnitsEachConsistingOfOneClassaOrdinaryShare0.0001ParValueAndOnehalfOfOneRedeemableWarrantMember"
      id="Fact000028">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2026-05-272026-05-27_custom_ClassaOrdinaryShares0.0001ParValuePerShareMember"
      id="Fact000029">Class&#160;A     ordinary shares, $0.0001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-272026-05-27_custom_ClassaOrdinaryShares0.0001ParValuePerShareMember"
      id="Fact000030">TDAC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-272026-05-27_custom_ClassaOrdinaryShares0.0001ParValuePerShareMember"
      id="Fact000031">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2026-05-272026-05-27_custom_RedeemableWarrantsIncludedAsPartOfUnitsEachWholeWarrantExercisableForOneClassaOrdinaryShareAtExercisePriceOf11.50Member"
      id="Fact000032">Redeemable warrants included as part of the units, each whole warrant exercisable for one Class&#160;A ordinary share at an exercise price of     $11.50</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-272026-05-27_custom_RedeemableWarrantsIncludedAsPartOfUnitsEachWholeWarrantExercisableForOneClassaOrdinaryShareAtExercisePriceOf11.50Member"
      id="Fact000033">TDACW</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-272026-05-27_custom_RedeemableWarrantsIncludedAsPartOfUnitsEachWholeWarrantExercisableForOneClassaOrdinaryShareAtExercisePriceOf11.50Member"
      id="Fact000034">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="AsOf2026-05-27" id="Fact000035">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod contextRef="AsOf2026-05-27" id="Fact000036">false</dei:EntityExTransitionPeriod>
</xbrl>
