Less: Reserves Inventory Valuation Reserves Revolving credit facility Line of Credit Facility, Maximum Borrowing Capacity Research and development expense Research and Development Expense Award expiration term Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Award Type [Domain] Award Type [Domain] Intangible asset impairment charge Impairment of Intangible Assets (Excluding Goodwill) Actuarial gains (losses) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax Deferred income taxes Deferred Income Tax Liabilities, Net Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax 2.150% Senior Unsecured Notes Due December 2030 2.150% Senior Unsecured Notes Due December 2030 [Member] 2.150% Senior Unsecured Notes Due December 2030 Schedule of Earnings per Share, Basic and Diluted [Table] Schedule of Earnings per Share, Basic and Diluted [Table] Schedule of Earnings per Share, Basic and Diluted [Table] Outstanding, Number of Shares (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Fiscal 2023 Acquisitions Fiscal 2023 Acquisitions [Member] Fiscal 2023 Acquisitions Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Five Common Stock and Related Matters Equity [Text Block] Total intrinsic value of stock options expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Pensions plans in which benefit obligation exceeds plan assets: Defined Benefit Plan, Pension Plan with Project Benefit Obligation in Excess of Plan Assets [Abstract] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Customer [Axis] Customer [Axis] Schedule of Weighted Average Assumptions Used Defined Benefit Plan, Assumptions [Table Text Block] Current liabilities: Liabilities, Current [Abstract] Preferred stock, $0.01 par value; 50,000,000 shares authorized; none issued Preferred Stock, Value, Issued Eliminations Intersegment Eliminations [Member] Dividends paid Payments of Ordinary Dividends, Common Stock Grants awarded beginning 2022 Award Date, Two [Member] Award Date, Two Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Accounts receivable, less reserve for doubtful accounts of $1.3 and $1.2, respectively Accounts Receivable, after Allowance for Credit Loss, Current Accounting Standards Update [Extensible List] Accounting Standards Update [Extensible Enumeration] Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Lines of Credit Line of Credit [Member] Schedule of Net Periodic Pension Cost Schedule of Net Benefit Costs [Table Text Block] Omnibus Stock Compensation Incentive and Directors’ Equity Plans Stock Incentive Plan Amended and Restated Acuity Brand, Inc. 2012 Omnibus Stock Compensation Incentive Plan [Member] Amended and Restated Acuity Brand, Inc. 2012 Omnibus Stock Compensation Incentive Plan [Member] Trading Symbol Trading Symbol Outstanding letters of credit Letters of Credit Outstanding, Amount Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Cost basis of investment Debt Securities, Trading, Amortized Cost Number of unimpaired intangible assets Intangible Assets, Number Of Unimpaired Intangible Assets Intangible Assets, Number Of Unimpaired Intangible Assets Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Machinery and equipment Machinery and Equipment [Member] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Fair value of awards (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Fair Value Stockholders’ equity: Equity, Attributable to Parent [Abstract] Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Service cost Defined Benefit Plan, Service Cost Plan assets Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Plan Assets Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Plan Assets Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Product Warranty Liability [Line Items] Product Warranty Liability [Line Items] Significant Accounting Policies Significant Accounting Policies [Text Block] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Level 1 Fair Value, Inputs, Level 1 [Member] Defined benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Multi-strategy investments Hedge Funds, Multi-strategy [Member] Schedule of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Equity Components [Axis] Equity Components [Axis] Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Entity Small Business Entity Small Business Amortization expense in fiscal 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Four Local Phone Number Local Phone Number Receivables Accounts Receivable [Member] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Amortization of Defined benefit pension items - Settlement losses Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gains (Losses), Reclassification Adjustment From AOCI, After Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gains (Losses), Reclassification Adjustment From AOCI, After Tax Depreciation expense Depreciation Retirement Benefits [Abstract] Retirement Benefits [Abstract] Portion at Fair Value, Fair Value Disclosure Portion at Fair Value Measurement [Member] Line of Credit Facility [Table] Line of Credit Facility [Table] Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Foreign currency translation adjustments - Before Tax Amount Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract] Other Long-Term Assets [Abstract] Other Assets, Noncurrent [Abstract] Schedule of Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Range of option exercise prices, Outstanding, Number of Shares (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Domestic plan Domestic Plan [Member] Self-insurance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance Stock options (less than) excluded from diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Award Type [Axis] Award Type [Axis] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Fair Value Plan Asset Measurement [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Total property, plant, and equipment, at cost Property, Plant and Equipment, Gross ROU assets obtained in exchange for lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Workforce Subject to Collective Bargaining Arrangements Expiring Within One Year Workforce Subject to Collective-Bargaining Arrangements Expiring within One Year [Member] Less: Discount due to interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Schedule of Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Current operating lease liabilities Operating Lease, Liability, Current 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Other comprehensive (loss) income before reclassifications Tax adjustments, after tax OCI, before Reclassifications, Net of Tax, Attributable to Parent Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Employer expected contribution to defined benefit plans in next fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Interest income Investment Income, Interest ISG Intelligent Spaces Group [Member] Intelligent Spaces Group Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Gross profit Gross Profit Commitment fees rate Line of Credit Facility, Commitment Fee Percentage Current deferred revenues Contract with Customer, Liability, Current Federal permanent differences Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Schedule of the Weighted Average Assumptions Used to Estimate Fair Value of Stock Options Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Security Exchange Name Security Exchange Name Corporate accounts Sales Channel, Through Corporate Accounts [Member] Sales Channel, Through Corporate Accounts [Member] Selling, distribution, and administrative expenses Selling, General and Administrative Expense Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Stock options Employee Stock Option [Member] Settlement Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Mutual Funds, Foreign equity fund Mutual Equity Funds, Foreign [Member] Mutual Equity Funds, Foreign [Member] Maximum Maximum [Member] Schedule of Details of Special Charges Incurred Restructuring and Related Costs [Table Text Block] Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Type Document Type Additions from acquired businesses Goodwill, Acquired During Period Actuarial losses Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Royalty Rate Measurement Input, Royalty Rate [Member] Measurement Input, Royalty Rate Collective Bargaining Agreements Collective Bargaining Agreements [Member] Collective Bargaining Agreements Inventories Inventory, Policy [Policy Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Defined Benefit Plan, Information about Plan Assets [Abstract] Defined Benefit Plan, Information about Plan Assets [Abstract] Share-based Payments Share-Based Payment Arrangement [Text Block] Provision for current federal taxes Current Federal Tax Expense (Benefit) Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Patents and patented technology Patents and Patented Technology [Member] The exclusive legal right granted by the government to the owner of the patents and patented technology to exploit the technology for a period of time specified by law. Business Acquisition [Axis] Business Acquisition [Axis] Reserve for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Trademarks and trade names Trademarks and Trade Names [Member] Customer Concentration Risk Customer Concentration Risk [Member] Variable Rate [Axis] Variable Rate [Axis] Cancelled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Title of 12(b) Security Title of 12(b) Security Defined Benefit Plan, Funding Status [Domain] Defined Benefit Plan, Funding Status [Domain] Actuarial gains Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Number of multi-employer plans Number Of Multiemployer Plans Number Of Multiemployer Plans Indefinite-lived trade names Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Operating Segments Operating Segments [Member] Beginning of period, Outstanding, Weighted Average Grant date Fair Value Per Share (in dollars per share) End of period, Outstanding, Weighted Average Grant Date Fair Value Per Share (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Vesting of share-based payment awards Stock Issued During Period, Value, Share-Based Payment Awards Stock Issued During Period, Value, Share-Based Payment Awards Share-Based Payment Arrangement [Abstract] Entity Tax Identification Number Entity Tax Identification Number Foreign currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Total lease cost Lease, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Qualified Plan Qualified Plan [Member] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Entity Interactive Data Current Entity Interactive Data Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Goodwill and Other Intangibles Goodwill and Intangible Assets, Policy [Policy Text Block] $160.01 - $210.00 (average life - 2.2 years) Exercise Price Range Two [Member] Exercise Price Range Two [Member] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Revenue Recognition and Shipping and Handling Fees and Costs Revenue from Contract with Customer [Policy Text Block] Goodwill and intangibles Deferred Tax Liabilities, Goodwill and Intangible Assets Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Defined benefit pension plans - Before Tax Amounts Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract] Advertising costs Advertising Expense Assets held for sale, total Assets transferred Disposal Group, Including Discontinued Operation, Assets Schedule of Components of Net Deferred Income Taxes Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Additional net periodic pension cost per 100 basis point decrease in expected return on plan assets rate Defined Benefit Plan, Estimated Net Periodic Benefit Cost Increase, Per 100 Basis Point Decrease In Discount Rate, Expected Return On Plan Assets Defined Benefit Plan, Estimated Net Periodic Benefit Cost Increase, Per 100 Basis Point Decrease In Discount Rate, Expected Return On Plan Assets Amortization expense in fiscal 2024 Finite-Lived Intangible Asset, Expected Amortization, Year One Cash paid for operating lease liabilities Operating Lease, Payments Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Cash outflows for working capital settlements Payments for Previous Acquisition Operating lease asset group impairment charge Operating Lease, Impairment Loss Interest cost Defined Benefit Plan, Interest Cost Floating Rate Floating Rate [Member] Floating Rate Schedule of Differences between Reported Amount and Reporting Currency Denominated Amount [Table] Schedule of Differences between Reported Amount and Reporting Currency Denominated Amount [Table] Schedule of Comprehensive Income (Loss) Comprehensive Income (Loss) [Table Text Block] Schedule Of Inventory Reserve Schedule Of Inventory Reserve [Table Text Block] Schedule Of Inventory Reserve Concentrations of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Auditor Location Auditor Location Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Pension and Defined Contribution Plans Retirement Benefits [Text Block] Change in plan assets: Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Customers with Rebate, Marketing, and Trade Promotion Programs Customers with Rebate, Marketing, and Trade Promotion Programs [Member] Customers with Rebate, Marketing, and Trade Promotion Programs [Member] Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] State income tax, net of federal income tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Net income Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Debt Instrument [Axis] Debt Instrument [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Direct sales network Sales Channel, Through Direct Sales Network [Member] Sales Channel, Through Direct Sales Network [Member] Credit Facility [Axis] Credit Facility [Axis] Total liabilities Liabilities Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Measurement Frequency [Domain] Measurement Frequency [Domain] Reduction in net periodic pension cost per 100 basis point increase in benefit obligation discount rate Defined Benefit Plan, Estimated Net Periodic Benefit Cost Decrease, Per 100 Basis Point Increase In Discount Rate, Benefit Obligation Defined Benefit Plan, Estimated Net Periodic Benefit Cost Decrease, Per 100 Basis Point Increase In Discount Rate, Benefit Obligation Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Schedule of Acquired Indefinite-Lived Intangible Assets Schedule of Acquired Indefinite-Lived Intangible Assets by Major Class [Table Text Block] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Fiscal 2021 Acquisitions Fiscal 2021 Acquisitions [Member] Fiscal 2021 Acquisitions 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Other comprehensive (loss) income, tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Range of option exercise prices, Outstanding, Weighted Average Exercise Price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Other Long-Term Liabilities [Abstract] Liabilities, Other than Long-Term Debt, Noncurrent [Abstract] Provision for current state taxes Current State and Local Tax Expense (Benefit) Total current assets Assets, Current Refunds to customers Contract with Customer, Refund Liability, Current Net periodic pension cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Asset impairments Asset Impairment Charges Equity securities Equity Securities [Member] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Range of option exercise prices, average life Share-based Compensation, Shares Authorized Under Stock Option Plans, Options, Exercise Price Range, Outstanding and Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation, Shares Authorized Under Stock Option Plans, Options, Exercise Price Range, Outstanding and Exercisable, Weighted Average Remaining Contractual Term New Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Repurchases of common stock (in shares) Stock Repurchased During Period, Shares Projected benefit obligation Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Projected Benefit Obligation Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Projected Benefit Obligation Earnings per Share, Basic and Diluted [Line Items] Earnings per Share, Basic and Diluted [Line Items] Earnings per Share, Basic and Diluted [Line Items] Net excess tax (benefit) expense related to share-based payment cost Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Concentrations as a percentage of total (percent) Concentration Risk, Percentage Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Investments in debt and equity securities Investments Granted, Weighted Average Grant Date Fair Value Per Share (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Amortization expense in fiscal 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Five Accounts Receivable Accounts Receivable [Policy Text Block] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Total intrinsic value of stock options exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Class of Stock [Axis] Class of Stock [Axis] Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Depreciation and amortization Depreciation and amortization: Depreciation, Depletion and Amortization Defined Contribution Plan Other Pension Plan [Member] Consolidation Items [Axis] Consolidation Items [Axis] Long-lived assets Long-Lived Assets Goodwill impairment charge Goodwill, Impairment Loss Valuation allowance Deferred Tax Assets, Valuation Allowance Number of impaired intangible assets Number Of Impaired Intangible Assets Number Of Impaired Intangible Assets Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Sales commissions Accrued Sales Commission, Current Other investments Equity Securities without Readily Determinable Fair Value, Amount Tax adjustments, before tax OCI, before Reclassifications, before Tax, Attributable to Parent Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Preferred stock, shares issued (in shares) Preferred stock, issued (in shares) Preferred Stock, Shares Issued Accounting Standards Update and Change in Accounting Principle [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Finished goods Inventory, Finished Goods, Gross Total deferred income tax assets Deferred Tax Assets, Gross Real estate fund Real Estate Funds [Member] Non-current deferred revenues, recognition period Revenue, Performance Obligation, Recognition Period Revenue, Performance Obligation, Recognition Period Right of return assets Contract with Customer, Right to Recover Product Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Payments and other deductions Standard Product Warranty Accrual, Decrease for Payments 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities [Axis] Unsecured public notes due December 2030 Unsecured Notes [Member] Unsecured Notes [Member] Common Stock Outstanding Common Stock Common Stock [Member] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Total defined benefit plans, net - net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Acuity Brands Lighting, Inc. Acuity Brands Lighting, Inc. [Member] Acuity Brands Lighting, Inc. Reductions due to lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Income Statement Location [Domain] Income Statement Location [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Minimum Minimum [Member] Property, plant, and equipment, net Property, plant, and equipment, net Property, Plant and Equipment, Net Cash dividends per share paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Foreign currency translation adjustments - Tax (Expense) or Benefit Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Benefit obligation at beginning of year Benefit obligation at end of year Defined Benefit Plan, Benefit Obligation ASSETS Assets [Abstract] Issuances of long-term debt Proceeds from Issuance of Long-Term Debt 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Payments of taxes withheld on net settlement of equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Other assets Deferred Tax Assets, Other US Treasury investments US Treasury Securities [Member] Net cash used for financing activities Net Cash Provided by (Used in) Financing Activities Deferred income taxes Deferred Income Tax Assets, Net Vesting of share-based payment awards (in shares) Stock Issued During Period, Shares, Share-Based Payment Awards Stock Issued During Period, Shares, Share-Based Payment Awards Retirement Plan Type [Axis] Multiemployer Plan Type [Axis] Retirement Plan Type [Axis] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Other investing activities Payments for (Proceeds from) Other Investing Activities Retained Earnings Retained Earnings [Member] Goodwill expected to be tax deductible Business Acquisition, Goodwill, Expected Tax Deductible Amount Fixed-income investments Fixed Income Investments [Member] Warranty and recall costs Standard Product Warranty Accrual, Increase for Warranties Issued Range of option exercise prices, Exercisable, Weighted Average Exercise Price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Other expense: Nonoperating Income (Expense) [Abstract] Audit Information [Abstract] Audit Information Other Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Basic earnings per share (in dollars per share) Earnings Per Share, Basic Interest expense, net Interest expense, net Interest Revenue (Expense), Net Employee stock purchase plan issuances Stock Issued During Period, Value, Employee Stock Purchase Plan Accounting Policies [Abstract] Accounting Policies [Abstract] Gain on sale of building Gain (Loss) on Disposition of Assets Fair value of plan assets at beginning of year Fair value of plan assets at end of year Total assets at fair value Defined Benefit Plan, Plan Assets, Amount Intrinsic value of options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Income taxes paid Income Taxes Paid Principles of Consolidation Consolidation, Policy [Policy Text Block] Document Transition Report Document Transition Report Retirement Plan Tax Status [Domain] Retirement Plan Tax Status [Domain] Grants awarded prior to 2022 Award Date, One [Member] Award Date, One Adjustments to provisional amounts from acquired businesses Goodwill, Purchase Accounting Adjustments Unsecured Term Loan Unsecured Debt [Member] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Number of buildings classified as held for sale Disposal Group, Including Discontinued Operation, Number Of Assets Disposal Group, Including Discontinued Operation, Number Of Assets Accounts payable Increase (Decrease) in Accounts Payable Mutual Funds, Domestic large cap equity fund Mutual Equity Funds, Large Domestic Blend Fund [Member] Mutual Equity Funds, Large Domestic Blend Fund [Member] Schedule of Change in Unrecognized Income Tax Benefit Summary of Income Tax Contingencies [Table Text Block] Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Entity Public Float Entity Public Float Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Senior unsecured public notes due December 2030, principal Long-Term Debt, Gross Loss on sale Pre-tax loss on sale Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Acquired warranty and recall liabilities Standard and Extended Product Warranty Accrual, Additions from Business Acquisition Common Stock [Roll Forward] Common Stock [Roll Forward] Common Stock [Roll Forward] Common stock included in defined contribution plan, market value Common Stock, Value, Outstanding Forfeited, Weighted Average Grant Date Fair Value Per Share (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value (Benefit from) provision for deferred taxes Deferred Income Tax Expense (Benefit) Contributions to multi-employer plans Multiemployer Plan, Employer Contribution, Cost Cancelled (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Number of other former associates that filed a class action lawsuit Loss Contingency, Number of Plaintiffs Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Defined Benefit Plan, Plan Assets, Allocations [Abstract] Defined Benefit Plan, Plan Assets, Allocations [Abstract] Amounts recognized in the consolidated balance sheets consist of: Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Number of former employees covered under life insurance policy Life Insurance, Number Of Current And Former Employees Covered Life Insurance, Number Of Current And Former Employees Covered Standard product warranty period Standard Product Warranty Period Standard Product Warranty Period Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Movement in warranty accruals Movement in Standard Product Warranty Accrual [Roll Forward] Amortization of Defined benefit pension items - Prior service cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax Tax adjustments Accumulated Defined Benefit Plans, Plan Amendments Attributable to Parent [Member] Accumulated Defined Benefit Plans, Plan Amendments Attributable to Parent Range of option exercise prices, upper range limit (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Proceeds from sale of property, plant, and equipment Proceeds from Sale of Property, Plant, and Equipment Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Document Period End Date Document Period End Date OEM and other Sales Channel, Original Equipment Manufacturer and Other [Member] Sales Channel, Original Equipment Manufacturer and Other Treasury Stock, at cost Treasury Stock, Common [Member] Segment Reporting Information [Line Items] Geographic Distribution Segment Reporting Information [Line Items] Gain on the sale or disposal of property, plant, and equipment Gain (Loss) on Disposition of Property Plant Equipment Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Income tax expense Total provision for income taxes Income Tax Expense (Benefit) International Non-US [Member] Intangible asset fair value measurement inputs (percent) Intangible Asset, Fair Value, Measurement Input Intangible Asset, Fair Value, Measurement Input Vesting [Axis] Vesting [Axis] Fair Value Measurements Fair Value Disclosures [Text Block] Pensions plans in which benefit obligation exceeds plan assets: Defined Benefit Plan, Underfunded Plan [Member] Equity [Abstract] Equity [Abstract] Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Retail sales Sales Channel, Through Retail Sales [Member] Sales Channel, Through Retail Sales [Member] Federal tax credit carryforwards, subject to expiration Tax Credit Carryforward, Amount Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Acquisitions of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Expected return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets Credit Facility [Domain] Credit Facility [Domain] Director stock units Director Share Units [Member] Director Share Units [Member] Reacquired shares of outstanding common stock (shares) Treasury Stock, Shares, Acquired Applicable margins as determined by leverage ratio Debt Instrument, Basis Spread on Variable Rate Useful lives of plant and equipment, minimum Property, Plant and Equipment, Useful Life Schedule of Other Long-Term Liabilities Schedule of Other Liabilities, Noncurrent [Table Text Block] Tabular disclosure of noncurrent liabilities. Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Freight costs Freight Costs, Current Freight Costs, Current Identifiable intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Schedule of Transaction Price from Contracts with Customers Allocated to Company's Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Revenue Recognition Revenue from Contract with Customer [Text Block] Reductions due to settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Paid-in capital Additional Paid in Capital, Common Stock Credit Facility Credit Facility The Revolving Credit Facility [Member] The Revolving Credit Facility [Member] Paid-in Capital Additional Paid-in Capital [Member] Document Annual Report Document Annual Report Cover [Abstract] Cover [Abstract] Senior Unsecured Notes Payable Senior Unsecured Notes Senior Unsecured Notes Payable [Member] Senior Unsecured Notes Payable [Member] Domestic Plans UNITED STATES Accumulated benefit obligation Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Accumulated Benefit Obligation Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation, Accumulated Benefit Obligation Fair value measured on recurring basis Fair Value, Recurring [Member] Number of acquisitions Number of Businesses Acquired Self-insurance liabilities Self Insurance Reserve, Noncurrent Other Other Liabilities, Noncurrent Schedule of Other Current Liabilities Other Current Liabilities [Table Text Block] Miscellaneous Expense (Income), Net Miscellaneous Expense (Income), Net [Member] Miscellaneous Expense (Income), Net [Member] Total undiscounted lease payments Lessee, Operating Lease, Liability, to be Paid Interest Expense, Net Interest Expense, Policy [Policy Text Block] Segment Information Supplemental Disaggregated Information Segment Reporting Disclosure [Text Block] Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Equity Component [Domain] Equity Component [Domain] State and Local Jurisdiction State and Local Jurisdiction [Member] Other liabilities Deferred Tax Liabilities, Other Actuarial gains (losses) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Entity Current Reporting Status Entity Current Reporting Status Concentration Risk Type [Domain] Concentration Risk Type [Domain] Operating profit Operating profit (loss): Operating profit: Operating Income (Loss) Other long-term liabilities Total other long-term liabilities Other Long Term Liabilities Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations, which consist primarily of deferred compensation, postretirement (other than pension) and postemployment benefit obligations, uncertain tax positions liability and deferred tax credits. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Shares vested (in shares) Deferred Compensation Arrangement, Shares Outstanding Deferred Compensation Arrangement with Individual, Shares Outstanding Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Total deferred income tax liabilities Deferred Tax Liabilities, Gross Segments [Axis] Segments [Axis] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Other comprehensive income (loss) items, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Actuarial gains Accumulated Defined Benefit Plans Adjustment, Actuarial Gain (Loss) Before Amortization Attributable to Parent [Member] Accumulated Defined Benefit Plans Adjustment, Actuarial Gain (Loss) Before Amortization Attributable to Parent Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Customer relationships Customer Relationships [Member] Product warranty and recall costs Product Warranty Accrual, Noncurrent Other restructuring costs Other Restructuring Costs Deferred income taxes Deferred Income Taxes and Tax Credits Variable Rate [Domain] Variable Rate [Domain] Entity Voluntary Filers Entity Voluntary Filers Statistical Measurement [Domain] Statistical Measurement [Domain] Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract] Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract] Shares outstanding of restricted stock (in shares) Beginning of period, Outstanding (in shares) End of period, Outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Debt and Lines of Credit Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Customers with Rights of Return, Cash Discounts and Other Credits Customers with Rights of Return, Cash Discounts and Other Credits [Member] Customers with Rights of Return, Cash Discounts and Other Credits [Member] Research and Development Research and Development Expense, Policy [Policy Text Block] Debt instrument issuance price percent of total Debt Instrument Issuance Price Percent Of Total Debt Instrument Issuance Price Percent Of Total Revolving credit facility borrowings Revolving Credit Facility Revolving Credit Facility [Member] Intelligent Spaces Group Segment Intelligent Spaces Group Segment [Member] Intelligent Spaces Group Segment Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Employee Deferred Stock Units Employee Deferred Share Units [Member] Employee Deferred Share Units [Member] Performance stock units Performance Shares [Member] Segment Reporting [Abstract] Segment Reporting [Abstract] Accounts payable Accounts Payable, Current Total other expense Nonoperating Income (Expense) Commitments and contingencies (see Commitments and Contingencies footnote) Commitments and Contingencies Trade name impairment charges Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) Settlement losses Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss) Attributable to Parent [Member] Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss) Attributable to Parent Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items] Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items] Share-based Payment Arrangement, Option, Exercise Price Range, End of Period [Abstract] Share-Based Payment Arrangement, Option, Exercise Price Range, End of Period [Abstract] Percentage of plan assets (percent) Defined Benefit Plan, Actuarial Gains (Losses) Threshold, Percentage of Plan Assets Defined Benefit Plan, Actuarial Gains (Losses) Threshold, Percentage of Plan Assets Geographical [Axis] Geographical [Axis] Capitalized research and development Deferred Tax Assets, Capitalized Research And Development Deferred Tax Assets, Capitalized Research And Development International Plans Foreign Plan [Member] Product Warranty Liability [Table] Product Warranty Liability [Table] Income Taxes Income Tax Disclosure [Text Block] 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Borrowings on credit facility, net of repayments Proceeds from (Repayments of) Lines of Credit Concentration Risk [Line Items] Concentration Risk [Line Items] $100.00 - $160.00 (average life - 6.2 years) Exercise Price Range One [Member] Exercise Price Range One [Member] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Business Acquisition [Line Items] Business Acquisition [Line Items] Weighted Average Grant Date Fair Value Per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Business Combinations And Divestitures [Abstract] Business Combinations And Divestitures Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Inventory, Net [Abstract] Inventory, Net [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Goodwill [Roll Forward] Goodwill [Roll Forward] Schedule of Pension Plan Asset Allocation Schedule of Allocation of Plan Assets [Table Text Block] Credit loss Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Level 3 Fair Value, Inputs, Level 3 [Member] Treasury stock (in shares) Treasury Stock, Common, Shares 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year One Stock options outstanding (in shares) Beginning of period, Outstanding (in shares) End of period, Outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Buildings and leasehold improvements Building and Building Improvements [Member] Stock options exercised Stock options exercised Stock Issued During Period, Value, Stock Options Exercised Weighted-average fair value of options (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Carrying and estimated fair value of financial instruments Long-Term Debt, Fair Value Net income Net income Net Income (Loss) Total current liabilities Liabilities, Current One Customer One Customer [Member] One Customer [Member] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Leases Lessee, Operating Leases [Text Block] Interest on long-term debt Interest Payable, Current Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Other Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Repurchases of common stock Stock Repurchased During Period, Value Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] Level 1,2 and 3 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Amounts reclassified from accumulated other comprehensive loss Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Stock options exercised (in shares) Exercised (less than) (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Other shipping and handling costs Other Shipping and Handling Costs Shipping and handling cost incurred during the reporting period, excluding fees billed to customers and costs associated with inbound freight and freight between manufacturing facilities. Inventories excluding reserves Inventory, Gross Cost of products sold Cost of Goods and Services Sold Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] Income Tax Contingency [Table] Income Tax Contingency [Table] Net amount recognized in consolidated balance sheets Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Share-based compensation vesting period (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Exercise Price Range [Domain] Exercise Price Range [Domain] Weighted average amortization period in years Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Goodwill Beginning balance Ending balance Goodwill Additions for tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Measurement Basis [Axis] Measurement Basis [Axis] Accounts receivable Increase (Decrease) in Accounts Receivable Fair Value Measurement [Domain] Fair Value Measurement [Domain] Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Deferred costs and other assets Deferred Costs, Noncurrent Funded status at end of year: Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Operating lease right of use assets Deferred Tax Asset, Operating Lease Right-Of-Use Asset Deferred Tax Liabilities, Operating Lease Right-of-use Asset Net gains (losses) relating to foreign currency items Realized Gain (Loss), Foreign Currency Transaction, before Tax Collective bargaining arrangement term Collective Bargaining Agreements, Term Collective Bargaining Agreements, Term Miscellaneous Expense (Income), Net Other Non-Operating Income (Expense) [Policy Text Block] Other Nonoperating Income (Expense) [Policy Text Block] Term of facility Debt Instrument, Term Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Deferred income tax liability for certain foreign withholding taxes and U.S. state taxes Deferred Tax Liabilities, Undistributed Foreign Earnings Cumulative-effect adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Accrued pension liabilities Non-current liabilities Liability, Defined Benefit Plan, Noncurrent Tax credit carryforward subject to a full valuation allowance Tax Credit Carryforward, Valuation Allowance Schedule of Future Undiscounted Payments Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Common stock equivalents (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Change in benefit obligation: Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Undistributed earnings and original investments in foreign subsidiaries Undistributed Earnings of Foreign Subsidiaries Product and Service [Domain] Product and Service [Domain] Schedule of Components of Total Lease Costs Lease, Cost [Table Text Block] Inventories Increase (Decrease) in Inventories Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Plan Name [Domain] Plan Name [Domain] Interest expense Interest Expense Fixed income securities Fixed Income Securities [Member] Number of shares authorized for issuance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Schedule of Performance Shares Outstanding Activity and Weighted Average Assumptions Used to Estimate Fair Value Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number Senior unsecured public notes due December 2030, unamortized discount and deferred costs Debt Instrument, Unamortized Discount Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Discount Rate Measurement Input, Discount Rate [Member] Schedule of Restricted Stock Award Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Total Work Force Covered by Collective Bargaining Agreements Workforce Subject to Collective-Bargaining Arrangements [Member] Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Auditor Firm ID Auditor Firm ID Amortization expense of finite-lived intangible assets Amortization of Intangible Assets Entity Shell Company Entity Shell Company Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Defined Benefit Plan, Funding Status [Axis] Defined Benefit Plan, Funding Status [Axis] Award Date [Domain] Award Date [Domain] Additions based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Scheduled future principal payment Debt Instrument, Periodic Payment, Principal Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Pension plan asset allocation, percentage Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Customer incentive programs Contract With Customer, Customer Incentive Liabilities, Current Contract With Customer, Customer Incentive Liabilities, Current Variable lease cost Variable Lease, Cost Operating lease cost Operating Lease, Cost Common stock, shares issued (in shares) Balance beginning of period (in shares) Balance end of period (in shares) Common Stock, Shares, Issued Net actuarial loss Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Awards that vested in the period (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Employee severance costs Severance and employee-related costs Severance Costs Treasury stock, at cost — 23,362,196 and 21,753,820 shares, respectively Treasury stock at original repurchase cost Treasury Stock, Common, Value Research and development tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Assets in fair value hierarchy Assets, Fair Value Disclosure Foreign Currency Items Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Balance at Beginning of Year Balance at End of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Unrecognized compensation cost period of recognition (years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Other financing activities Proceeds from (Payments for) Other Financing Activities Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Other accruals not yet deductible Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other Schedule of Expected Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Funded status at the end of year Defined Benefit Plan, Funded (Unfunded) Status of Plan Unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Performance stock units outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number Domestic Domestic Tax Authority [Member] Short-term lease cost Short-Term Lease, Cost Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Warranty and recall costs Warranty and Recall Costs, Current Warranty and Recall Costs, Current Tax-related items Taxes Payable, Current Amounts in accumulated other comprehensive loss Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Operating loss carryforwards Operating Loss Carryforwards Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract] Total other current liabilities Other Liabilities, Current Income Statement [Abstract] Income Statement [Abstract] Lighting and Building Management Solutions Lighting and Building Management Solutions [Member] Lighting and Building Management Solutions [Member] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Tax adjustments Other Comprehensive Income (Loss) before Reclassifications, Tax Amortization of Defined benefit pension items - Settlement losses Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gain (Loss), Reclassification Adjustment From AOCI, Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gain (Loss), Reclassification Adjustment From AOCI, Tax Share-based payment amortization, issuances, and cancellations Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Axis] Class of Stock [Line Items] Class of Stock [Line Items] Federal income tax computed at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Pensions plans in which plan assets exceed benefit obligation Non-current assets Assets for Plan Benefits, Defined Benefit Plan Operating lease liabilities Deferred Tax Assets, Operating Lease Liabilities Deferred Tax Assets, Operating Lease Liabilities Total debt Debt, Long-Term and Short-Term, Combined Amount Inventories Total inventories Inventory, Net Raw materials, supplies, and work in process Inventory, Work in Process and Raw Materials Land Land [Member] Advertising Advertising Cost [Policy Text Block] Range of option exercise prices, Exercisable, Number of Shares (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Repurchases of common stock Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Accumulated benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Acquisitions and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] Total defined benefit plans, net - tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Segments [Domain] Segments [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Indefinite-lived intangible assets held Indefinite-Lived Intangible Assets, Number Indefinite-Lived Intangible Assets, Number Schedule of Interest Expense, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Consolidation Items [Domain] Consolidation Items [Domain] Long-term Growth Rate Measurement Input, Long-Term Revenue Growth Rate [Member] Retained earnings Retained Earnings (Accumulated Deficit) Exercise Price Range [Axis] Exercise Price Range [Axis] Debt instrument, face amount Debt Instrument, Face Amount Current assets: Assets, Current [Abstract] Leases [Abstract] Leases [Abstract] Deferred income tax assets: Components of Deferred Tax Assets [Abstract] Entity Address, State or Province Entity Address, State or Province Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Collective trust: Domestic small cap equities Domestic Small Cap Equities [Member] Common Collective Trust [Member] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Total other long-term assets Other Long Term Assets Aggregate carrying amount, as of the balance sheet date, of noncurrent assets which consist primarily of long-term investments, assets held for sale, deferred debt issuance costs, capitalized software costs, deferred sales and marketing costs and other miscellaneous long-term assets. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Common stock included in defined contribution plan as percentage of total fair value of assets in plan Defined Contribution Plan, Common Stock Percentage of Total Fair Value of Plan Assets Defined Contribution Plan, Common Stock Percentage of Total Fair Value of Plan Assets Disposal Group Name [Domain] Disposal Group Name [Domain] Indefinite-lived trade names Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure Assets Held for Sale Assets Held for Sale [Policy Text Block] Assets Held for Sale [Policy Text Block] Accumulated Other Comprehensive Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Data Security Incidents Data Security Incidents [Member] Data Security Incidents Class of Stock [Domain] Class of Stock [Domain] Pensions plans in which plan assets exceed benefit obligation: Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation [Abstract] Defined Benefit Plan, Pension Plan With Plan Assets In Excess of Projected Benefit Obligation Customer [Domain] Customer [Domain] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Present value of lease liabilities Operating Lease, Liability Leverage ratio Line of Credit Facility, Covenant Terms, Leverage Ratio Line of Credit Facility, Covenant Terms, Leverage Ratio Total defined benefit plans, net - before tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Unrecognized tax position liabilities, including interest Liability for Uncertainty in Income Taxes, Noncurrent Description of Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Vesting [Domain] Vesting [Domain] Accumulated Other Comprehensive Loss Items AOCI Attributable to Parent [Member] Prepayments and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Pensions plans in which plan assets exceed benefit obligation: Defined Benefit Plan, Overfunded Plan [Member] Additions to reserve SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Defined contribution plan, cost recognized Defined Contribution Plan, Cost Deferred revenues Non-current deferred revenues Contract with Customer, Liability, Noncurrent Accumulated Other Comprehensive Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Defined Benefit Pension Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Plan Name [Axis] Plan Name [Axis] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Income tax benefit for share-based compensation Share-Based Payment Arrangement, Expense, Tax Benefit Number of reportable segments Number of reportable segments Number of Reportable Segments Earnings per share Earnings Per Share [Abstract] Recognized actuarial loss Defined Benefit Plan, Recognized Actuarial Net Gain (Loss) The amount of actuarial net gain (loss) recognized in net periodic benefit cost. Foreign currency translation adjustments - Net of Tax Amount Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Inventory reserves: SEC Schedule, 12-09, Reserve, Inventory [Member] Common stock, $0.01 par value; 500,000,000 shares authorized; 54,411,186 and 54,241,069 issued, respectively Balance, beginning of period Balance end of period Common Stock, Value, Issued Summary of Information Related to Nonrecurring Fair Value Measurements Fair Value Measurements, Nonrecurring [Table Text Block] Trade Names No Longer With Indefinite Lives Trade Names No Longer With Indefinite Lives [Member] Trade Names No Longer With Indefinite Lives Other investments NAV Fair Value Measured at Net Asset Value Per Share [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Trade Names Trade Names [Member] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] ABL Acuity Brands Lighting and Lighting Controls [Member] Acuity Brands Lighting and Lighting Controls Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Accruals related to income tax penalties Unrecognized Tax Benefits, Income Tax Penalties Accrued Miscellaneous expense (income), net Miscellaneous expense (income), net Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Held-for-sale Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Acuity Brands Lighting and Lighting Controls Segment Acuity Brands Lighting and Lighting Controls Segment [Member] Acuity Brands Lighting and Lighting Controls Segment [Member] Schedule of Reconciliation of Federal Statutory Rate to Total Provision for Income Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Amortization of Defined benefit pension items - Prior service cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Unrecognized tax benefits Unrecognized tax benefits balance at beginning of year Unrecognized tax benefits balance at end of year Unrecognized Tax Benefits Income Tax Authority [Axis] Income Tax Authority [Axis] Other Other Sundry Liabilities, Current Preferred stock, shares authorized (in shares) Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Base Rate Base Rate [Member] 2029-2033 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Building Building [Member] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Prior service cost Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Other Current Liabilities [Table] Other Current Liabilities [Table] Other Current Liabilities Disposals of reserved inventory SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Fair value measured on nonrecurring basis Fair Value, Nonrecurring [Member] Defined benefit pension plans - Tax (Expense) or Benefit Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax [Abstract] Actuarial gains (losses) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Other accrued liabilities Other Accrued Liabilities, Current Product Concentration Risk Product Concentration Risk [Member] Unallocated corporate amounts Corporate, Non-Segment [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Pension Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Interest rate (percent) Debt Instrument, Interest Rate, Stated Percentage Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Loss on sale of a business Gain (Loss) on Disposition of Business Property, Plant and Equipment - Depreciation Depreciation, Depletion, and Amortization [Policy Text Block] Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Unrecognized tax benefits that if recognized would affect annual effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Independent sales network Sales Channel, Through Independent Sales Network [Member] Sales Channel, Through Independent Sales Network [Member] Restricted stock awards and units Restricted Stock [Member] Schedule of Changes in Common Stock Schedule of Share-based Compensation, Common Stock Activity [Table Text Block] Tabular disclosure of the number and amount for share options and restricted shares activity (rollforward). Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Expected life of options Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Schedule of Domestic and International Pension Plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Income before income taxes Income before income taxes: Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Work force Labor Force Concentration Risk [Member] $210.01 - $239.76 (average life - 3.1 years) Exercise Price Range Three [Member] Exercise Price Range Three [Member] Fair Value Measurements of Pension Plan Assets Fair Value Measurement, Policy [Policy Text Block] Special Charges Restructuring and Related Activities Disclosure [Text Block] Current liabilities Liability, Defined Benefit Plan, Current Level 2 Fair Value, Inputs, Level 2 [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Amortization of Defined benefit pension items - Prior service cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Schedule of Changes in Product Warranty and Recall Costs Schedule of Product Warranty Liability [Table Text Block] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Document Fiscal Period Focus Document Fiscal Period Focus Amortization period Finite-Lived Intangible Asset, Useful Life Additional borrowing capacity under revolving credit facility Line of Credit Facility, Remaining Borrowing Capacity Employee discount on purchases of common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Beginning of period, Outstanding (in dollars per share) End of period, Outstanding (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based payment expense Share-Based Payment Arrangement, Noncash Expense Foreign Tax Authority Foreign Tax Authority [Member] City Area Code City Area Code Product and Service [Axis] Product and Service [Axis] Document Fiscal Year Focus Document Fiscal Year Focus Geographical [Domain] Geographical [Domain] Share-based Payments Compensation Related Costs, Policy [Policy Text Block] Amortization of Defined benefit pension items - Settlement losses Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gains (Losses), Reclassification Adjustment From AOCI, Before Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Settlement Gains (Losses), Reclassification Adjustment From AOCI, Before Tax Range of option exercise prices, lower range limit (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Schedule of Stock Option Transactions Share-Based Payment Arrangement, Option, Activity [Table Text Block] Schedule of Acquired Finite-Lived Intangible Assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Cash dividends paid on common stock Dividends, Common Stock, Cash Short-term debt, fair value Short-Term Debt, Fair Value Debt issuance costs, gross Debt Issuance Costs, Gross Beginning balance Ending balance Standard Product Warranty Accrual Schedule of Carrying Value and Estimated Fair Value of Financial Instruments Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Share-based Compensation Recognized Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Other long-term assets Other Assets, Noncurrent Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Operating lease right-of-use assets Right of use operating lease assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Provision for current foreign taxes Current Foreign Tax Expense (Benefit) Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Schedule of Other Long-Term Assets Schedule of Other Assets, Noncurrent [Table Text Block] Entity Address, City or Town Entity Address, City or Town Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Special charges Total special charges Restructuring Charges Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Common stock, shares authorized (in shares) Common Stock, Shares Authorized Current maturities of debt Short-term borrowings under credit facility Short-Term Debt Short-term fixed income investments Short-Term Investments [Member] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Other financial instruments Other Assets, Fair Value Disclosure Adjustments to reconcile net income to cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Measurement Input Type [Axis] Measurement Input Type [Axis] Distribution network Distribution Rights [Member] Defined Benefit Plan, Assumptions Used in Calculations [Abstract] Defined Benefit Plan, Assumptions Used in Calculations [Abstract] Fair value of shares vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Deferred compensation and postretirement benefits other than pensions Deferred Compensation and Postretirement Defined Benefit Plans, Liabilities, Noncurrent Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements and other postretirement benefit plans (other than pensions) payable beyond one year (or the operating cycle, if longer). Income Taxes Income Tax, Policy [Policy Text Block] Prepayments and other current assets Prepaid Expense and Other Assets, Current Amortization expense in fiscal 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Disposal Group, Not Discontinued Operations Disposal Group, Not Discontinued Operations [Member] Maximum number of shares that may yet be purchased under the program (shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Total intrinsic value of stock options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Pre-tax amounts in accumulated other comprehensive loss: Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] Foreign currency translation adjustments SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment Share-based payment amortization, issuances, and cancellations (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Registrant Name Entity Registrant Name Amortization expense in fiscal 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Market Options Share-Based Payment Arrangement, Tranche Two [Member] Deferred income tax liabilities: Components of Deferred Tax Liabilities [Abstract] Charge for collectability of a supplier warranty obligation Supplier Warranty Obligation Receivable, Credit Loss Expense (Reversal) Supplier Warranty Obligation Receivable, Credit Loss Expense (Reversal) Auditor Name Auditor Name Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Disposal Group Name [Axis] Disposal Group Name [Axis] Outstanding, Weighted Average Exercise Price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Repayments of long-term debt Repayments of Long-Term Debt Entity Central Index Key Entity Central Index Key Share-based payment expense Share-based payment expense Share-Based Payment Arrangement, Expense Gross Carrying Amount Finite-Lived Intangible Assets, Gross Income Tax Authority [Domain] Income Tax Authority [Domain] Accrued compensation Employee-related Liabilities, Current Net Sales Revenue Benchmark [Member] Other comprehensive income (loss) items, net of tax Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Award Date [Axis] Award Date [Axis] Schedule of Revenue from Contract with Customers by Sales Channel Disaggregation of Revenue [Table Text Block] Foreign permanent differences and rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Net sales Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Legal Entity [Axis] Legal Entity [Axis] Weighted average discount rate (percent) Operating Lease, Weighted Average Discount Rate, Percent SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities No longer indefinite lives Intangible Assets, Number Of Assets No Longer With Indefinite Lives Intangible Assets, Number Of Assets No Longer With Indefinite Lives Additional borrowing capacity under revolving credit facility Line Of Credit Facility, Accordion Feature, Increase (Decrease) To Borrowing Capacity Line Of Credit Facility, Accordion Feature, Increase (Decrease) To Borrowing Capacity Remaining accruals Restructuring and Related Cost, Expected Cost Remaining Long-term debt Long-Term Debt, Excluding Current Maturities Net deferred income tax liabilities Deferred Tax Liabilities, Net Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Diluted weighted average number of shares outstanding (in shares) Diluted weighted average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Derecognitions for divestitures Goodwill, Written off Related to Sale of Business Unit Purchases of property, plant, and equipment Capital expenditures: Payments to Acquire Property, Plant, and Equipment 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Total assets Segment assets: Assets Total assets at fair value Asset Fair Value Disclosure, Including Equity Securities Without Readily Determinable Fair Value, Amount Asset Fair Value Disclosure, Including Equity Securities Without Readily Determinable Fair Value, Amount Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Other comprehensive (loss) income before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Defined benefit pension plans - Net of Tax Amount Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Pension Plan Pension Plan [Member] Maximum leverage ratio Line of Credit Facility, Covenant Terms, Leverage Ratio, Maximum Line of Credit Facility, Covenant Terms, Leverage Ratio, Maximum Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Targeted asset allocation, percentage Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Net operating losses Deferred Tax Assets, Operating Loss Carryforwards Debt Instrument [Line Items] Debt Instrument [Line Items] Basic weighted average number of shares outstanding (in shares) Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Real estate Real Estate [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Sunoptics Business Sunoptics Business [Member] Sunoptics Business Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Changes in operating assets and liabilities, net of acquisitions Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Other Current Liabilities [Line Items] Other Current Liabilities [Line Items] Other Current Liabilities Proceeds from stock option exercises and other Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Statement [Line Items] Statement [Line Items] Concentration Risk [Table] Concentration Risk [Table] Total accrued interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Accounting Standards Update 2016-13 [Member]