<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001878848</identifier>
        </entity>
        <period>
            <startDate>2026-03-04</startDate>
            <endDate>2026-03-04</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001878848</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-03-04</startDate>
            <endDate>2026-03-04</endDate>
        </period>
    </context>
    <unit id="usd">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-24">IREN Limited</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-123">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c1" id="ixv-124">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c1" id="ixv-125">Ordinary Shares</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c1" id="ixv-126">true</ffd:Rule457oFlg>
    <ffd:MaxAggtOfferingPric contextRef="c1" decimals="INF" id="ixv-127" unitRef="usd">6000000000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate contextRef="c1" decimals="INF" id="ixv-128" unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt contextRef="c1" decimals="2" id="ixv-129" unitRef="usd">828600</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="c0" decimals="INF" id="ixv-130" unitRef="usd">6000000000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="c0" decimals="2" id="ixv-131" unitRef="usd">828600</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="c0" decimals="0" id="ixv-132" unitRef="usd">0</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="c0" decimals="0" id="ixv-133" unitRef="usd">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="c0" decimals="2" id="ixv-134" unitRef="usd">828600</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c1" id="ixv-108">&lt;table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"&gt; &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt; &lt;td style="padding: 0px 0pt; font-size: 10pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; (1) &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: left; font-size: 10pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; The maximum aggregate offering price of the securities to which the prospectus relates is $6,000,000,000. The prospectus is a final prospectus for the related offering. &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</ffd:OfferingNote>
    <ffd:NrrtvDsclsr contextRef="c0" id="ixv-109">&lt;table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"&gt; &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt; &lt;td style="padding: 0px 0pt; font-size: 10pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; (1) &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: left; font-size: 10pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; The maximum aggregate offering price of the securities to which the prospectus relates is $6,000,000,000. The prospectus is a final prospectus for the related offering. &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</ffd:NrrtvDsclsr>
    <ffd:NrrtvMaxAggtOfferingPric contextRef="c0" decimals="INF" id="ixv-135" unitRef="usd">6000000000</ffd:NrrtvMaxAggtOfferingPric>
    <ffd:FnlPrspctsFlg contextRef="c0" id="ixv-136">true</ffd:FnlPrspctsFlg>
    <ffd:SubmissnTp contextRef="c0" id="hidden-fact-0">424B5</ffd:SubmissnTp>
    <ffd:CombinedProspectusTableNa contextRef="c0" id="ixv-140">N/A</ffd:CombinedProspectusTableNa>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-141">0001878848</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-142">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:FormTp contextRef="c0" id="ixv-143">S-3</ffd:FormTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-144">N/A</ffd:OffsetTableNa>
    <ffd:RegnFileNb contextRef="c0" id="ixv-145">333-284369</ffd:RegnFileNb>
</xbrl>
