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  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"
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  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>2026-07-01</startDate>
            <endDate>2026-07-01</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>2026-07-01</startDate>
            <endDate>2026-07-01</endDate>
        </period>
    </context>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <unit id="usdPershares">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
            </unitNumerator>
            <unitDenominator>
                <measure>shares</measure>
            </unitDenominator>
        </divide>
    </unit>
    <unit id="usd">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c0" id="ixv-113">S-8</ffd:SubmissnTp>
    <ffd:FormTp contextRef="c0" id="ixv-114">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-25">IREN LIMITED</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c1" id="ixv-115">Equity</ffd:OfferingSctyTp>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-116">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTitl contextRef="c1" id="ixv-117">Ordinary shares, no par value</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c1" id="ixv-118">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c1"
      decimals="INF"
      id="ixv-119"
      unitRef="shares">8000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c1"
      decimals="INF"
      id="ixv-120"
      unitRef="usdPershares">45.63</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric contextRef="c1" decimals="INF" id="ixv-121" unitRef="usd">365040000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate contextRef="c1" decimals="INF" id="ixv-122" unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt contextRef="c1" decimals="2" id="ixv-123" unitRef="usd">50412.03</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="c0" decimals="INF" id="ixv-124" unitRef="usd">365040000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="c0" decimals="2" id="ixv-125" unitRef="usd">50412.03</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt contextRef="c0" decimals="0" id="ixv-126" unitRef="usd">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="c0" decimals="2" id="ixv-127" unitRef="usd">50412.03</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c1" id="ixv-94">&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;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; &lt;span style="font-size: 10.0pt;"&gt;(1)&lt;/span&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: justify;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; &lt;span style="font-size: 10.0pt;"&gt;This Registration Statement on Form S-8 (this
&#x201c;Registration Statement&#x201d;) covers 8,000,000 ordinary shares, no par value, of IREN
Limited (the &#x201c;Registrant&#x201d;) (i) authorized for issuance under the Registrant&#x2019;s
2025 Omnibus Incentive Plan (the &#x201c;Plan&#x201d;) and (ii) pursuant to Rule 416(a)
promulgated under the Securities Act of 1933, as amended (the &#x201c;Securities
Act&#x201d;), any additional ordinary shares of the Registrant that become issuable
under the Plan set forth herein by reason of any share dividend, share split,
recapitalization, or other similar transaction effected that results in an
increase to the number of outstanding ordinary shares of the Registrant.&lt;br/&gt;&lt;br/&gt;The Proposed Maximum Offering Per Share Price is
estimated in accordance with Rule 457(c) and (h) promulgated under the
Securities Act solely for purposes of calculating the Registration Fee on the
basis of the high and low prices of the Registrant&#x2019;s ordinary shares as
reported on the Nasdaq Global Select Market on June 30, 2026, a date that is
within five business days prior to the date of the filing of this Registration
Statement. Each of the Proposed Maximum Offering Price Per Share, Maximum
Aggregate Offering Price and Amount of Registration Fee is rounded up to the
nearest penny.&lt;br/&gt;&lt;/span&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</ffd:OfferingNote>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-130">0001878848</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-131">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-132">N/A</ffd:OffsetTableNa>
</xbrl>
