<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="ck0001946997-20260331.xsd" xlink:type="simple"/>
    <context id="C_5070dde4-278b-4157-abc1-4940bf2c8f37">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001946997</identifier>
        </entity>
        <period>
            <startDate>2026-03-31</startDate>
            <endDate>2026-03-31</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_9c2c878e-43dc-4090-acd0-f3179b3de38a">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_87fa8d23-4b8d-4da2-978c-81c9779f8c80">0001946997</dei:EntityCentralIndexKey>
    <dei:SecurityExchangeName
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_24550b9d-417b-4cd4-9277-b39f571a868c">NONE</dei:SecurityExchangeName>
    <dei:DocumentType
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_0a88071c-b5be-4972-807f-19cdbe69d3be">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_33efcc9e-3c93-432a-adde-316af2929eb7">2026-03-31</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_cab5738b-feb7-4183-a348-5111c2744e80">EQT Exeter Real Estate Income Trust, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_f7eeae2d-e0bd-4350-bbdf-1fbf0d04e85d">MD</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_3b423091-2960-4a07-b730-170ce779ba8e">333-273163</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_70bb8779-01d0-4638-b83a-2645ea1d6dd7">88-4108741</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_f4400ef6-b566-42cf-9422-3b280f4eabb0">Five Radnor Corporate Center</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_0bf232d0-6a6c-48a6-b8cb-c9936dd015cb">100 Matsonford Road, Suite 250</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_9285c76d-21c4-4445-b734-56bc78d983b7">Radnor</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_309e5b4c-c3c6-427e-ab72-2b09b3f6b07d">PA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_724c3f59-932b-4feb-99e6-a416ec0a17cb">19087</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_f184655b-0423-48e7-8db7-ce1d3c5c903a">610</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_cecd18aa-667b-4def-97fd-a7619bd0da51">828-3200</dei:LocalPhoneNumber>
    <dei:EntityInformationFormerLegalOrRegisteredName
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_d21fb705-1bc6-46a2-9672-aea32768adc5">Not Applicable</dei:EntityInformationFormerLegalOrRegisteredName>
    <dei:WrittenCommunications
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_f4bc509f-025d-4fdd-aad7-800303bd28d9">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_ffdfdcca-a706-473f-a280-6d2871281ab9">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_92ef8a8c-8838-4cb3-9408-00820b0a1425">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_583dfb65-877e-487f-81e9-a54c52cc5d09">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_853e9406-096c-4279-8954-5e09c085c93d">None</dei:Security12bTitle>
    <dei:NoTradingSymbolFlag
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_a041e7bd-6f27-4d13-8973-3cc7dd06f6bf">true</dei:NoTradingSymbolFlag>
    <dei:EntityEmergingGrowthCompany
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_52933558-2bc3-4e8a-8b2b-80aa31b6894a">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod
      contextRef="C_5070dde4-278b-4157-abc1-4940bf2c8f37"
      id="F_28e79083-f742-4c5c-8cc8-f5fa18f89d4d">true</dei:EntityExTransitionPeriod>
</xbrl>
