3.26.1 html 112 90 1 false 27 0 false 4 false false R1.htm 0000001 - Document - Cover Sheet http://www.acuitybrands.com/role/Cover Cover Cover 1 false false R2.htm 0000002 - Statement - Statements of Net Assets Available for Benefits Sheet http://www.acuitybrands.com/role/StatementsofNetAssetsAvailableforBenefits Statements of Net Assets Available for Benefits Statements 2 false false R3.htm 0000003 - Statement - Statements of Changes in Net Assets Available for Benefits Sheet http://www.acuitybrands.com/role/StatementsofChangesinNetAssetsAvailableforBenefits Statements of Changes in Net Assets Available for Benefits Statements 3 false false R4.htm 0000004 - Disclosure - Description of the Plans Sheet http://www.acuitybrands.com/role/DescriptionofthePlans Description of the Plans Notes 4 false false R5.htm 0000005 - Disclosure - Summary of Accounting Policies Sheet http://www.acuitybrands.com/role/SummaryofAccountingPolicies Summary of Accounting Policies Notes 5 false false R6.htm 0000006 - Disclosure - Acuity DC Trust Sheet http://www.acuitybrands.com/role/AcuityDCTrust Acuity DC Trust Notes 6 false false R7.htm 0000007 - Disclosure - Stable Value Investments Sheet http://www.acuitybrands.com/role/StableValueInvestments Stable Value Investments Notes 7 false false R8.htm 0000008 - Disclosure - Fair Value Measurements Sheet http://www.acuitybrands.com/role/FairValueMeasurements Fair Value Measurements Notes 8 false false R9.htm 0000009 - Disclosure - Income Tax Status Sheet http://www.acuitybrands.com/role/IncomeTaxStatus Income Tax Status Notes 9 false false R10.htm 0000010 - Disclosure - Benefits Payable Sheet http://www.acuitybrands.com/role/BenefitsPayable Benefits Payable Notes 10 false false R11.htm 0000011 - Disclosure - Risks and Uncertainties Sheet http://www.acuitybrands.com/role/RisksandUncertainties Risks and Uncertainties Notes 11 false false R12.htm 0000012 - Disclosure - Acquisitions Sheet http://www.acuitybrands.com/role/Acquisitions Acquisitions Notes 12 false false R13.htm 0000013 - Disclosure - Schedule H, Line 4a - Schedule of Delinquent Participant Contributions Sheet http://www.acuitybrands.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContributions Schedule H, Line 4a - Schedule of Delinquent Participant Contributions Notes 13 false false R14.htm 0000014 - Disclosure - Schedule H, Line 4i – Schedule of Assets (Held at End of Year) Sheet http://www.acuitybrands.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYear Schedule H, Line 4i – Schedule of Assets (Held at End of Year) Notes 14 false false R15.htm 0000015 - Disclosure - Summary of Accounting Policies (Policies) Sheet http://www.acuitybrands.com/role/SummaryofAccountingPoliciesPolicies Summary of Accounting Policies (Policies) Policies http://www.acuitybrands.com/role/SummaryofAccountingPolicies 15 false false R16.htm 0000016 - Disclosure - Description of the Plans (Tables) Sheet http://www.acuitybrands.com/role/DescriptionofthePlansTables Description of the Plans (Tables) Tables http://www.acuitybrands.com/role/DescriptionofthePlans 16 false false R17.htm 0000017 - Disclosure - Acuity DC Trust (Tables) Sheet http://www.acuitybrands.com/role/AcuityDCTrustTables Acuity DC Trust (Tables) Tables http://www.acuitybrands.com/role/AcuityDCTrust 17 false false R18.htm 0000018 - Disclosure - Stable Value Investments (Tables) Sheet http://www.acuitybrands.com/role/StableValueInvestmentsTables Stable Value Investments (Tables) Tables http://www.acuitybrands.com/role/StableValueInvestments 18 false false R19.htm 0000019 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.acuitybrands.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.acuitybrands.com/role/FairValueMeasurements 19 false false R20.htm 0000020 - Disclosure - Benefits Payable (Tables) Sheet http://www.acuitybrands.com/role/BenefitsPayableTables Benefits Payable (Tables) Tables http://www.acuitybrands.com/role/BenefitsPayable 20 false false R21.htm 0000021 - Disclosure - Description of the Plans (Details) Sheet http://www.acuitybrands.com/role/DescriptionofthePlansDetails Description of the Plans (Details) Details http://www.acuitybrands.com/role/DescriptionofthePlansTables 21 false false R22.htm 0000022 - Disclosure - Acuity DC Trust - Narrative (Details) Sheet http://www.acuitybrands.com/role/AcuityDCTrustNarrativeDetails Acuity DC Trust - Narrative (Details) Details 22 false false R23.htm 0000023 - Disclosure - Acuity DC Trust - Schedule of Master Trust Net Assets (Details) Sheet http://www.acuitybrands.com/role/AcuityDCTrustScheduleofMasterTrustNetAssetsDetails Acuity DC Trust - Schedule of Master Trust Net Assets (Details) Details 23 false false R24.htm 0000024 - Disclosure - Stable Value Investments (Details) Sheet http://www.acuitybrands.com/role/StableValueInvestmentsDetails Stable Value Investments (Details) Details http://www.acuitybrands.com/role/StableValueInvestmentsTables 24 false false R25.htm 0000025 - Disclosure - Fair Value Measurements - Narrative (Details) Sheet http://www.acuitybrands.com/role/FairValueMeasurementsNarrativeDetails Fair Value Measurements - Narrative (Details) Details 25 false false R26.htm 0000026 - Disclosure - Fair Value Measurements - Investments at Fair Value (Details) Sheet http://www.acuitybrands.com/role/FairValueMeasurementsInvestmentsatFairValueDetails Fair Value Measurements - Investments at Fair Value (Details) Details 26 false false R27.htm 0000027 - Disclosure - Benefits Payable - Reconciliation of Net Assets Available for Benefit (Details) Sheet http://www.acuitybrands.com/role/BenefitsPayableReconciliationofNetAssetsAvailableforBenefitDetails Benefits Payable - Reconciliation of Net Assets Available for Benefit (Details) Details 27 false false R28.htm 0000028 - Disclosure - Acquisitions (Details) Sheet http://www.acuitybrands.com/role/AcquisitionsDetails Acquisitions (Details) Details http://www.acuitybrands.com/role/Acquisitions 28 false false R29.htm 0000029 - Disclosure - Schedule H, Line 4a - Schedule of Delinquent Participant Contributions (Details) Sheet http://www.acuitybrands.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContributionsDetails Schedule H, Line 4a - Schedule of Delinquent Participant Contributions (Details) Details http://www.acuitybrands.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContributions 29 false false R30.htm 0000030 - Disclosure - Schedule H, Line 4i – Schedule of Assets (Held At End of Year) (Details) Sheet http://www.acuitybrands.com/role/ScheduleHLine4iScheduleofAssetsHeldAtEndofYearDetails Schedule H, Line 4i – Schedule of Assets (Held At End of Year) (Details) Details http://www.acuitybrands.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYear 30 false false All Reports Book All Reports ayi-20260626.htm ayi-20260626.xsd ayi-20260626_cal.xml ayi-20260626_def.xml ayi-20260626_lab.xml ayi-20260626_pre.xml http://fasb.org/us-gaap-ebp/2026 http://xbrl.sec.gov/dei/2026 true true