<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>23</ContextCount>
  <ElementCount>38</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>7</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>3</UnitCount>
  <MyReports>
    <Report instance="ny20075753x771_def14a.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995100 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/dei/role/document/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ny20075753x771_def14a.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ny20075753x771_def14a.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995443 - Disclosure - Award Timing Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure</Role>
      <ShortName>Award Timing Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ny20075753x771_def14a.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995447 - Disclosure - Insider Trading Policies and Procedures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc</Role>
      <ShortName>Insider Trading Policies and Procedures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>air-20260923.xsd</File>
    <File>air-20260923_def.xml</File>
    <File>air-20260923_lab.xml</File>
    <File>air-20260923_pre.xml</File>
    <File doctype="DEF 14A" isProxy="true" isUsgaap="true" original="ny20075753x771_def14a.htm">ny20075753x771_def14a.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>edge20047181x771_ceo.jpg</File>
    <File>edge20047181x771_compen.jpg</File>
    <File>logo_aar-new.jpg</File>
    <File>ny20075753x771_1markval.jpg</File>
    <File>ny20075753x771_3markval.jpg</File>
    <File>ny20075753x771_6markval.jpg</File>
    <File>ny20075753x771_accounting.jpg</File>
    <File>ny20075753x771_barchart001.jpg</File>
    <File>ny20075753x771_barchart002.jpg</File>
    <File>ny20075753x771_barchart003.jpg</File>
    <File>ny20075753x771_barchart004.jpg</File>
    <File>ny20075753x771_barchart005.jpg</File>
    <File>ny20075753x771_barchart010.jpg</File>
    <File>ny20075753x771_barcharts.jpg</File>
    <File>ny20075753x771_bcv.jpg</File>
    <File>ny20075753x771_bnolen-s.jpg</File>
    <File>ny20075753x771_bnolen.jpg</File>
    <File>ny20075753x771_boparts.jpg</File>
    <File>ny20075753x771_borepair.jpg</File>
    <File>ny20075753x771_bosoftware.jpg</File>
    <File>ny20075753x771_bul.jpg</File>
    <File>ny20075753x771_business.jpg</File>
    <File>ny20075753x771_check.jpg</File>
    <File>ny20075753x771_checkx2.jpg</File>
    <File>ny20075753x771_cover1.jpg</File>
    <File>ny20075753x771_cover2.jpg</File>
    <File>ny20075753x771_dmcnabb.jpg</File>
    <File>ny20075753x771_downarrow.jpg</File>
    <File>ny20075753x771_elord-s.jpg</File>
    <File>ny20075753x771_elord.jpg</File>
    <File>ny20075753x771_finance.jpg</File>
    <File>ny20075753x771_garascia-02.jpg</File>
    <File>ny20075753x771_gender.jpg</File>
    <File>ny20075753x771_gov.jpg</File>
    <File>ny20075753x771_governance.jpg</File>
    <File>ny20075753x771_human.jpg</File>
    <File>ny20075753x771_hwidhani-s.jpg</File>
    <File>ny20075753x771_hwidhani.jpg</File>
    <File>ny20075753x771_iconma.jpg</File>
    <File>ny20075753x771_info.jpg</File>
    <File>ny20075753x771_jdietrich.jpg</File>
    <File>ny20075753x771_jdietricx1.jpg</File>
    <File>ny20075753x771_jedwards-s.jpg</File>
    <File>ny20075753x771_jedwards.jpg</File>
    <File>ny20075753x771_jessup-02.jpg</File>
    <File>ny20075753x771_jholmes-s.jpg</File>
    <File>ny20075753x771_jholmes.jpg</File>
    <File>ny20075753x771_jholmesx1.jpg</File>
    <File>ny20075753x771_johnholmes-02.jpg</File>
    <File>ny20075753x771_jvogel-s.jpg</File>
    <File>ny20075753x771_jvogel.jpg</File>
    <File>ny20075753x771_letterhead.jpg</File>
    <File>ny20075753x771_logistics.jpg</File>
    <File>ny20075753x771_mailx1.jpg</File>
    <File>ny20075753x771_manf.jpg</File>
    <File>ny20075753x771_marketing.jpg</File>
    <File>ny20075753x771_mboyce-s.jpg</File>
    <File>ny20075753x771_mboyce.jpg</File>
    <File>ny20075753x771_military.jpg</File>
    <File>ny20075753x771_mwalfish-s.jpg</File>
    <File>ny20075753x771_mwalfish.jpg</File>
    <File>ny20075753x771_mwalfishx1.jpg</File>
    <File>ny20075753x771_operating.jpg</File>
    <File>ny20075753x771_ourvision.jpg</File>
    <File>ny20075753x771_oversight.jpg</File>
    <File>ny20075753x771_pachapa-02.jpg</File>
    <File>ny20075753x771_pc01.jpg</File>
    <File>ny20075753x771_pc02.jpg</File>
    <File>ny20075753x771_personx1.jpg</File>
    <File>ny20075753x771_phonex1.jpg</File>
    <File>ny20075753x771_piechart001.jpg</File>
    <File>ny20075753x771_piechart002.jpg</File>
    <File>ny20075753x771_piechart003.jpg</File>
    <File>ny20075753x771_piechart005.jpg</File>
    <File>ny20075753x771_plane.jpg</File>
    <File>ny20075753x771_ppace-s.jpg</File>
    <File>ny20075753x771_ppace.jpg</File>
    <File>ny20075753x771_ppacex1.jpg</File>
    <File>ny20075753x771_pvpchart01.jpg</File>
    <File>ny20075753x771_pvpchart02.jpg</File>
    <File>ny20075753x771_pvpchart03.jpg</File>
    <File>ny20075753x771_pvpchart04.jpg</File>
    <File>ny20075753x771_riskman.jpg</File>
    <File>ny20075753x771_rleduc-s.jpg</File>
    <File>ny20075753x771_rleduc.jpg</File>
    <File>ny20075753x771_rleducx1.jpg</File>
    <File>ny20075753x771_safety.jpg</File>
    <File>ny20075753x771_services.jpg</File>
    <File>ny20075753x771_sigholmes.jpg</File>
    <File>ny20075753x771_solutions.jpg</File>
    <File>ny20075753x771_tenure.jpg</File>
    <File>ny20075753x771_values.jpg</File>
    <File>ny20075753x771_webx1.jpg</File>
    <File>ny20075753x771_wolin-02.jpg</File>
    <File>ny20075753x777_arrowx1.jpg</File>
    <File>ny20075753x777_checkx1.jpg</File>
    <File>ny20075753x777_checkx3.jpg</File>
    <File>ny20075753x777_checkx4.jpg</File>
    <File>ny20075753x777_checkx5.jpg</File>
    <File>ny20075753x777_crossmark.jpg</File>
    <File>ny20075753x777_digital.jpg</File>
    <File>ny20075753x777_footerlogo.jpg</File>
    <File>ny20075753x777_header.jpg</File>
    <File>ny20075753x777_parts.jpg</File>
    <File>ny20075753x777_repair.jpg</File>
    <File>ny20075753x777_software.jpg</File>
    <File>sig_jessica.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="10">http://fasb.org/us-gaap/2026</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/dei/2026</BaseTaxonomy>
    <BaseTaxonomy items="77">http://xbrl.sec.gov/ecd/2026</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
