<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2024"
  xmlns:ecd="http://xbrl.sec.gov/ecd/2024"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2024"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="rdi-20241231.xsd" xlink:type="simple"/>
    <context id="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassBMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassAMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="As_Of_6_28_2024">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
        </entity>
        <period>
            <instant>2024-06-28</instant>
        </period>
    </context>
    <context id="As_Of_3_28_2025_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassBMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2025-03-28</instant>
        </period>
    </context>
    <context id="As_Of_3_28_2025_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassAMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2025-03-28</instant>
        </period>
    </context>
    <context id="Duration_1_1_2024_To_12_31_2024">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000716634</identifier>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <unit id="Unit12">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Unit1">
        <measure>shares</measure>
    </unit>
    <dei:AmendmentFlag
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-953bd41c-7d62-4d81-bac8-26d93d8348b4">false</dei:AmendmentFlag>
    <dei:DocumentFiscalPeriodFocus
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-4019c9e7-134c-4efd-ab27-0497fee82325">FY</dei:DocumentFiscalPeriodFocus>
    <dei:EntityCentralIndexKey
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-934f9d33-abeb-4f9f-ab5e-ffaa4358bfc6">0000716634</dei:EntityCentralIndexKey>
    <dei:EntityCurrentReportingStatus
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-accedb8b-e47c-49b7-9ff0-95b93e62db36">Yes</dei:EntityCurrentReportingStatus>
    <dei:EntityInteractiveDataCurrent
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-bbcc9713-1098-4faf-b7a6-a90b2a4d693a">Yes</dei:EntityInteractiveDataCurrent>
    <dei:EntityVoluntaryFilers
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-460cc7d5-407a-4ad7-bf6d-a43d6b20c44d">No</dei:EntityVoluntaryFilers>
    <dei:EntityWellKnownSeasonedIssuer
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-5641f8f3-89ed-452f-9275-9c6a6a85ebd2">No</dei:EntityWellKnownSeasonedIssuer>
    <dei:DocumentType
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-82bb8a34-cb0f-4daf-b5e0-f9f9b24b6673">10-K/A</dei:DocumentType>
    <dei:DocumentAnnualReport
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-16db96ff-06d6-4389-8d5f-bff4417a00f4">true</dei:DocumentAnnualReport>
    <dei:CurrentFiscalYearEndDate
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-14e4cbd4-f4c7-401e-9f05-7c75226af7aa">--12-31</dei:CurrentFiscalYearEndDate>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-3a43fe0f-d31d-41f6-a5a9-33d97bffbb2a">2024-12-31</dei:DocumentPeriodEndDate>
    <dei:DocumentFiscalYearFocus
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-1f9cf1a9-e526-4d78-97ac-a67e898c7519">2024</dei:DocumentFiscalYearFocus>
    <dei:DocumentTransitionReport
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-98661049-0209-4542-8ae0-404fed56af43">false</dei:DocumentTransitionReport>
    <dei:EntityFileNumber
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-dddba5b0-979e-4849-b52c-1a1a513457bc">1-8625</dei:EntityFileNumber>
    <dei:EntityRegistrantName
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-21848b1d-77e5-4268-a9ea-82d4ac1b4cd2">Reading International, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-40dcb916-7876-41dd-b9a0-92f643889a92">NV</dei:EntityIncorporationStateCountryCode>
    <dei:EntityTaxIdentificationNumber
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-1357eaf6-345b-4494-8bd1-165f7517ddee">95-3885184</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-e6bee6fa-f036-4540-a891-c7a4115c8ca3">189 Second Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-69b7aaf3-e9da-4c37-9327-163062f00b4f">Suite 2S</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-12f48a59-c06d-4a4d-b841-d642e5ab4833">New York</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-ee60548e-598e-4585-aa7e-dcfcb1ace6a3">NY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-c910073f-e44b-46f3-bb63-a03983767eb2">10003</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-7669c232-1f27-4c15-98e5-1c36218649da">213</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-8e255d8f-b8e9-4c83-ac60-3b83a81c8a7e">235-2240</dei:LocalPhoneNumber>
    <dei:Security12bTitle
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember"
      id="ct-nonNumeric-19a517c6-8095-4963-8a18-12d1d38d5d60">Class A Non-Voting Common Stock, $0.01 Par Value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember"
      id="ct-nonNumeric-63ac9cbf-f571-4f6c-a363-946038566a36">RDI</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember"
      id="ct-nonNumeric-de9d6854-5455-46c2-bd01-60a21d769a77">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember"
      id="ct-nonNumeric-ecd919d5-ab03-459a-a0be-204bcf6102d3">Class B Voting Common Stock, $0.01 Par Value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember"
      id="ct-nonNumeric-51153db0-f18b-485c-8f1e-5d23b54ec9fc">RDIB</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_1_1_2024_To_12_31_2024_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember"
      id="ct-nonNumeric-22748189-83e1-44dd-8f84-695ff87ea852">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityFilerCategory
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-50a0c78b-aa8a-4461-94a5-89240db6728e">Non-accelerated Filer</dei:EntityFilerCategory>
    <dei:EntitySmallBusiness
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-15149421-eb6c-41f5-98a5-48380bb70323">true</dei:EntitySmallBusiness>
    <dei:EntityEmergingGrowthCompany
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-5661dffe-63e2-4f79-8779-592bad8f00a0">false</dei:EntityEmergingGrowthCompany>
    <dei:IcfrAuditorAttestationFlag
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-70d0bba7-8ea4-47f0-bd93-0e3035df4a4f">false</dei:IcfrAuditorAttestationFlag>
    <dei:DocumentFinStmtErrorCorrectionFlag
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-8c26ad51-9bea-4a73-98be-0903be744d53">false</dei:DocumentFinStmtErrorCorrectionFlag>
    <dei:EntityShellCompany
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-980946bc-b715-4137-87ae-e11528bf4290">false</dei:EntityShellCompany>
    <dei:EntityPublicFloat
      contextRef="As_Of_6_28_2024"
      decimals="0"
      id="ct-nonFraction-b6c74fbc-e8dc-4f7c-ba3f-ff79655f6265"
      unitRef="Unit12">37083486</dei:EntityPublicFloat>
    <dei:EntityCommonStockSharesOutstanding
      contextRef="As_Of_3_28_2025_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember"
      decimals="INF"
      id="ct-nonFraction-9d4186e5-dec7-4e7b-969a-1f13c1f60e66"
      unitRef="Unit1">20603203</dei:EntityCommonStockSharesOutstanding>
    <dei:EntityCommonStockSharesOutstanding
      contextRef="As_Of_3_28_2025_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassBMember"
      decimals="INF"
      id="ct-nonFraction-0940bbdc-2c23-4180-9180-0f24f270d24b"
      unitRef="Unit1">1680590</dei:EntityCommonStockSharesOutstanding>
    <dei:DocumentsIncorporatedByReferenceTextBlock
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-306f8cab-5131-4197-b29c-a8e239499e01">&lt;span style="white-space:pre-wrap; color: #000000;font-family: 'Times New Roman', 'serif';font-size: 10pt;font-style: normal;font-weight: bold;margin: 0;padding: 0;"&gt;Documents Incorporated by Reference &lt;/span&gt;&lt;p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 10pt;line-height: 108%;margin-bottom: 0;margin-left: 0;margin-right: 0;margin-top: 0;text-align: center;"&gt;&lt;span style="white-space:pre-wrap; color: #000000;font-size: 10pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"&gt; &lt;/span&gt;&lt;/p&gt;&lt;p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 10pt;line-height: 108%;margin-bottom: 0;margin-left: 0;margin-right: 0;margin-top: 0;"&gt;&lt;span id="_DV_C8" style="text-decoration: none;"&gt;&lt;/span&gt;&lt;span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 10pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"&gt;None.&lt;/span&gt;&lt;/p&gt;</dei:DocumentsIncorporatedByReferenceTextBlock>
    <ecd:InsiderTrdPoliciesProcAdoptedFlag
      contextRef="Duration_1_1_2024_To_12_31_2024"
      id="ct-nonNumeric-526137f9-c1ac-4770-a623-9a359c5af93a">true</ecd:InsiderTrdPoliciesProcAdoptedFlag>
</xbrl>
