<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2026"
  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"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
      xlink:type="simple"/>
    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001562401</identifier>
        </entity>
        <period>
            <startDate>2026-06-12</startDate>
            <endDate>2026-06-12</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001562401</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-12</startDate>
            <endDate>2026-06-12</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-330">S-3</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-331">424B7</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-332">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:RegnFileNb contextRef="rc" id="ixv-333">333-296743</ffd:RegnFileNb>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-334">0001562401</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-335">American Homes 4 Rent</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="rc" id="hiddenrcCombinedProspectusTableNa">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FnlPrspctsFlg contextRef="rc" id="ixv-339">false</ffd:FnlPrspctsFlg>
    <ffd:FormTp contextRef="rc" id="ixv-364">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-365">American Homes 4 Rent</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-366">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-367">Class A common shares of beneficial interest, par value $0.01 per share</ffd:OfferingSctyTitl>
    <ffd:Rule415a6Flg contextRef="offrl_1" id="ixv-368">true</ffd:Rule415a6Flg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_1"
      decimals="0"
      id="ixv-369"
      unitRef="Shares">55565472</ffd:AmtSctiesRegd>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_1"
      decimals="2"
      id="ixv-370"
      unitRef="USD">1479727436.98</ffd:MaxAggtOfferingPric>
    <ffd:CfwdFormTp contextRef="offrl_1" id="ixv-371">S-3</ffd:CfwdFormTp>
    <ffd:CfwdPrrFileNb contextRef="offrl_1" id="ixv-372">333-272547</ffd:CfwdPrrFileNb>
    <ffd:CfwdPrrFctvDt contextRef="offrl_1" id="ixv-373">2023-06-09</ffd:CfwdPrrFctvDt>
    <ffd:CfwdPrevslyPdFee
      contextRef="offrl_1"
      decimals="2"
      id="ixv-374"
      unitRef="USD">191908.21</ffd:CfwdPrevslyPdFee>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-375" unitRef="USD">1479727436.98</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-376" unitRef="USD">0.00</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-377" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-378" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-379" unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-380">In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant initially deferred payment of all of the registration fees for the Registration Statement (File No. 333-296743) filed by the registrant on June 12, 2026. Pursuant to Rule 415(a)(6) under the Securities Act, this prospectus supplement includes 55,565,472 unsold Class A common shares of beneficial interest, par value $0.01 per share ("common shares") previously registered. On June 9, 2023, the registrant filed a prospectus supplement (the "2023 Prospectus Supplement") to the prospectus included in its Registration Statement on Form S-3 (Registration Statement No. 333-272547) registering a total of 57,847,189 common shares. The common shares registered by the 2023 Prospectus Supplement included: (1) 13,795 newly registered common shares, (2) 54,765,472 common shares that remained unsold under a prospectus supplement (the "2020 Prospectus Supplement") to the prospectus included in the registrant's Registration Statement on Form S-3 (Registration Statement No. 333-239227) that were carried forward to the 2023 Prospectus Supplement pursuant to Rule 415(a)(6) under the Securities Act and (3) 3,067,922 common shares that remained unsold under a prospectus supplement (the "2019 Prospectus Supplement") to the prospectus included in its Registration Statement on Form S-3 (Registration Statement No. 333-219720) that were carried forward to the 2023 Prospectus Supplement pursuant to Rule 415(a)(6) under the Securities Act. Pursuant to Rule 415(a)(6) under the Securities Act, 55,565,472 common shares offered hereby are unsold common shares previously registered by the 2023 Prospectus Supplement, for which filings fees of $191,908.21 were previously paid and will continue to be applied to such unsold securities.</ffd:OfferingNote>
</xbrl>
