<?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">0001174169</identifier>
        </entity>
        <period>
            <startDate>2026-06-30</startDate>
            <endDate>2026-06-30</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001174169</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-30</startDate>
            <endDate>2026-06-30</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-133">S-8</ffd:SubmissnTp>
    <ffd:FormTp contextRef="c0" id="ixv-134">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-24">Algonquin Power &amp; Utilities Corp.</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c1" id="ixv-135">Equity</ffd:OfferingSctyTp>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-136">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTitl contextRef="c1" id="ixv-137">Common Shares, no par value</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c1" id="ixv-138">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c1"
      decimals="INF"
      id="ixv-139"
      unitRef="shares">22000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c1"
      decimals="INF"
      id="ixv-140"
      unitRef="usdPershares">5.89</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric contextRef="c1" decimals="INF" id="ixv-141" unitRef="usd">129580000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate contextRef="c1" decimals="INF" id="ixv-142" unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt contextRef="c1" decimals="2" id="ixv-143" unitRef="usd">17895</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="c0" decimals="INF" id="ixv-144" unitRef="usd">129580000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="c0" decimals="2" id="ixv-145" unitRef="usd">17895</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt contextRef="c0" decimals="0" id="ixv-146" unitRef="usd">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="c0" decimals="2" id="ixv-147" unitRef="usd">17895</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; Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;), this registration statement (the &#x201c;Registration Statement&#x201d;) shall also be deemed to cover any additional common shares, no par value (the &#x201c;Common Shares&#x201d;), of Algonquin Power &amp;amp; Utilities Corp. (the &#x201c;Registrant&#x201d;) stated above that become available under the foregoing Performance and Restricted Share Unit Plan for Employees of Algonquin Power &amp;amp; Utilities Corp. and its Participating Affiliates in connections with any changes in the number of outstanding Common Shares resulting from any recapitalization, stock dividend, stock split, reverse stock split, or any other similar transaction with respect to which the number of outstanding Common Shares are converted or exchanged. &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&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;
      (2)
     &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;
      Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rule 457(c) and Rule 457(h) under the Securities Act and is based upon the average of the high and low selling prices per share of the Common Shares of the Registrant, as reported on the New York Stock Exchange on June 23, 2026.
     &lt;/div&gt;
    &lt;/td&gt;
   &lt;/tr&gt;
  &lt;/table&gt;</ffd:OfferingNote>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-150">0001174169</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-151">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-152">N/A</ffd:OffsetTableNa>
</xbrl>
