Cover [Abstract] Document Type Document Type Document Annual Report Document Annual Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Public Float Entity Public Float Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Entity Central Index Key Entity Central Index Key Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Equity [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Axis] Class of Stock [Domain] Amount Common Stock [Member] Repurchase Plan, Type and Name [Axis] Repurchase Plan, Type and Name [Axis] Repurchase Plan by Type and Name [Domain] Repurchase Plan by Type and Name [Domain] March 2018 Repurchase Plan March 2018 Repurchase Plan [Member] March 2018 Repurchase Plan [Member] Class of Stock [Line Items] Common Stock [Roll Forward] Common Stock [Roll Forward] Common Stock, Balance beginning of period (in shares) Common Stock, Shares, Issued Issuance of restricted stock grants, net of cancellations (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Common Stock, Balance end of period (in shares) Common Stock, Amount (at par), Balance beginning of period Common Stock, Value, Issued Issuance of restricted stock grants, net of cancellations, Amount Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock options exercised, Amount Stock Issued During Period, Value, Stock Options Exercised Common Stock, Amount (at par), Balance end of period Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract] Remaining repurchased shares recorded as treasury stock Treasury Stock, Shares Treasury stock at original repurchase cost Treasury Stock, Value Shares authorized for repurchase (shares) Stock Repurchase Program, Number of Shares Authorized to be Repurchased Reacquired shares of outstanding common stock Treasury Stock, Shares, Acquired Maximum number of shares that may yet be purchased under the program (shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, issued (in shares) Preferred Stock, Shares Issued Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Income Statement [Abstract] Net sales Revenue from Contract with Customer, Excluding Assessed Tax Cost of products sold Cost of Goods and Services Sold Gross profit Gross Profit Selling, distribution, and administrative expenses Selling, General and Administrative Expense Special charges Restructuring Charges Operating profit Operating Income (Loss) Other expense: Nonoperating Income (Expense) [Abstract] Interest expense, net Interest Revenue (Expense), Net Miscellaneous expense, net Other Nonoperating Income (Expense) Total other expense Other Nonoperating Expenses The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business), including interest and gain (loss) on early extinguishment of debt. Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Net Income (Loss) Attributable to Parent Earnings per share: Earnings Per Share [Abstract] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Basic weighted average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Diluted weighted average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Net income Other comprehensive income (loss) items: Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Defined benefit plans, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Other comprehensive income (loss) items, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Share-based Payment Arrangement, Noncash Expense [Abstract] Share-based Compensation Recognized Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of Restricted Stock Award Activity Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Schedule of Stock Options, Weighted Average Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Stock Option Transactions Share-based Payment Arrangement, Option, Activity [Table Text Block] Leases [Abstract] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Special Charges Restructuring Charges [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Weighted average discount rate (percent) Operating Lease, Weighted Average Discount Rate, Percent Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Rent expense Operating Leases, Rent Expense Cash paid for operating lease liabilities Operating Lease, Payments ROU assets obtained in exchange for lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability ROU lease asset impairment charges Operating Lease, Impairment Loss Segment Reporting [Abstract] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Lighting and Building Management Solutions Lighting and Building Management Solutions [Member] Lighting and Building Management Solutions [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales of lighting solutions, excluding services Revenue Benchmark [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Revenue source Product Concentration Risk [Member] Geographical [Axis] Geographical [Domain] Domestic Domestic Tax Authority [Member] International Non-US [Member] Geographic Distribution Segment Reporting Information [Line Items] Number of reportable segments Number of Reportable Segments Sales as percentage of total sales (percent) Concentration Risk, Percentage Net sales Revenues Operating profit: Income before provision for income taxes: Long-lived assets Long-Lived Assets Accounting Policies [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Land Land [Member] Total property, plant, and equipment, at cost Building and Building Improvements [Member] Machinery and equipment Machinery and Equipment [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Useful lives of plant and equipment, minimum Property, Plant and Equipment, Useful Life Depreciation expense Depreciation Total property, plant, and equipment, at cost Property, Plant and Equipment, Gross Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant, and equipment, net Property, Plant and Equipment, Net Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Fair value measured on recurring basis Fair Value, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Plan Asset Measurement [Domain] Fair Value Hierarchy and NAV [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Senior unsecured public notes, net of unamortized discount and deferred costs Senior Unsecured Notes Payable [Member] Senior Unsecured Notes Payable [Member] Borrowings under Term Loan Facility Unsecured Delayed Draw Term Loan [Member] Unsecured Delayed Draw Term Loan [Member] Industrial revenue bond Industrial Revenue Bond [Member] Industrial Revenue Bond [Member] Bank loans Bank Loan Obligations [Member] Measurement Basis [Axis] Fair Value Measurement [Domain] Portion at Fair Value, Fair Value Disclosure Portion at Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] 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] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Investments in unconsolidated affiliates Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure Carrying and estimated fair value of financial instruments Long-term Debt, Fair Value Number of unconsolidated affiliates Investment in Affiliates, Number of Unconsolidated Affiliates Investment in Affiliates, Number of Unconsolidated Affiliates Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Description of Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Inventory, Net [Abstract] Raw materials, supplies, and work in process Inventory, Work in Process and Raw Materials Finished goods Inventory, Finished Goods, Gross Inventories excluding reserves Inventory, Gross Less: Reserves Inventory Valuation Reserves Total inventories Inventory, Net Share-Based Payments Share-based Payment Arrangement [Text Block] Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Activity by Actions Year [Axis] Restructuring Activity by Actions Year [Axis] Restructuring Activity by Actions Year [Axis] Restructuring Activity by Actions Year [Domain] Restructuring Activity by Actions Year [Domain] Restructuring Activity by Actions Year [Domain] Fiscal 2020 Actions Fiscal 2020 Actions Restructuring Activity [Member] Fiscal 2020 Actions Restructuring Activity [Member] Fiscal 2019 Actions Fiscal 2019 Actions Restructuring Activity [Member] Fiscal 2019 Actions Restructuring Activity [Member] Fiscal 2018 Actions Fiscal 2018 Actions Restructuring Activity [Member] Fiscal 2018 Actions Restructuring Activity [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Severance and employee-related costs Severance Costs Other restructuring costs Other Restructuring Costs Special charges Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Remaining balance of severance reserve Restructuring Reserve Severance costs Restructuring and Related Cost, Incurred Cost Payments made during the period Payments for Restructuring Remaining balance of severance reserve 2021 Lessee, Operating Lease, Liability, to be Paid, Year One 2022 Lessee, Operating Lease, Liability, to be Paid, Year Two 2023 Lessee, Operating Lease, Liability, to be Paid, Year Three 2024 Lessee, Operating Lease, Liability, to be Paid, Year Four 2025 Lessee, Operating Lease, Liability, to be Paid, Year Five Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Total undiscounted lease payments Lessee, Operating Lease, Liability, to be Paid Less: Discount due to interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Present value of lease liabilities Operating Lease, Liability Statement of Stockholders' Equity [Abstract] Cash dividends per share paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Accounting Standards Update [Extensible List] Accounting Standards Update [Extensible List] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Service Options Share-based Payment Arrangement, Tranche One [Member] Market Options Share-based Payment Arrangement, Tranche Two [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] 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] Supplemental Deferred Savings Plan Supplemental Deferred Savings Plan [Member] Supplemental Deferred Savings Plan [Member] Directors' Deferred Compensation Plan Directors' Deferred Compensation Plan [Member] Directors' Deferred Compensation Plan [Member] Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Restricted Stock Restricted Stock [Member] Stock Options Share-based Payment Arrangement, Option [Member] Performance stock units Performance Shares [Member] Director share units Director Share Units [Member] Director Share Units [Member] Employee Deferred Share Units Employee Deferred Share Units [Member] Employee Deferred Share Units [Member] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Exercise Price Range [Axis] Exercise Price Range [Domain] $40.01 - $100.00 (average life - 2.1 years) Exercise Price Range One [Member] Exercise Price Range One [Member] $100.01 - $160.00 (average life - 8.3 years) Exercise Price Range Two [Member] Exercise Price Range Two [Member] $160.01 - $210.00 (average life - 5.2 years) Exercise Price Range Three [Member] Exercise Price Range Three [Member] $210.01 - $239.76 (average life - 6.1 years) Exercise Price Range Four [Member] Exercise Price Range Four [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of shares authorized for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Years of service eligible for continued vesting Share-based Compensation Arrangement by Share-based Payment Award, Age Threshold for Continued Vesting Share-based Compensation Arrangement by Share-based Payment Award, Age Threshold for Continued Vesting Age to be attained allowing for continued vesting Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Share-based payment expense Share-based Payment Arrangement, Expense Share-based Compensation Arrangement, Restricted Stock Awards [Abstract] Restricted Stock Awards [Abstract] Share-based compensation vesting period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning of period, Outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period End of period, Outstanding (in shares) Weighted Average Grant Date Fair Value Per Share [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Beginning 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 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 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 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 End of period, Outstanding, Weighted Average Grant Date Fair Value Per Share (in dollars per share) Unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized compensation cost period of recognition (years) Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Share-based Compensation Arrangement, Stock Options [Abstract] Share-based Compensation Arrangement, Stock Options [Abstract] Award expiration term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected life of options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 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 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Beginning of period, Outstanding, Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted, Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Stock options exercised (in shares) End of period, Outstanding, Number of Shares 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] Beginning of period, Outstanding, Weighted average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted, Weighted average exercise price (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised, Weighted average exercise price (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price End of period, Outstanding, Weighted average exercise price (in dollars per share) Exercisable, Number of shares outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable, Weighted average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Payment Arrangement, Option, Exercise Price Range, End of Period [Abstract] Range of option exercise prices: lower range limit (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Range of option exercise prices: upper range limit (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Range of option exercise prices: average life Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding and Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding and Exercisable, Weighted Average Remaining Contractual Term Range of option exercise prices: Number of Shares, Outstanding Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Range of option exercise prices: Weighted Average Exercise Price, Outstanding (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Range of option exercise prices: Number of Shares, Exercisable Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Range of option exercise prices: Weighted Average Exercise Price, Exercisable (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Total intrinsic value of stock options expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Total intrinsic value of stock options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 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 Total intrinsic value of stock options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Deferred compensation, number of share units outstanding Deferred Compensation Arrangement, Shares Outstanding Deferred Compensation Arrangement with Individual, Shares Outstanding Employee discount on purchases of common stock Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Fair Value Measurements Fair Value Disclosures [Text Block] Accounting Standards Update and Change in Accounting Principle [Abstract] Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] ASC 606 adjustments Cumulative Effect, Period of Adoption, Adjustment [Member] Accounting Standards Update [Axis] Accounting Standards Update [Axis] Accounting Standards Update [Domain] Accounting Standards Update [Domain] ASU 2016-02 Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Operating lease liabilities Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Current operating lease liabilities Operating Lease, Liability, Current Deferred rent balances derecognized Deferred Rent Credit Operating lease right-of-use assets Operating Lease, Right-of-Use Asset New Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Debt Disclosure [Abstract] Debt and Lines of Credit Debt Disclosure [Text Block] Schedule of Carrying Value and Estimated Fair Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Total reserve balance Accounts Receivable, Sales Returns, Reserve for Sales Returns Accounts Receivable, Sales Returns, Reserve for Sales Returns 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] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, issued (in shares) Treasury stock (in shares) Operating lease cost Operating Lease, Cost Variable lease cost Variable Lease, Cost Short-term lease cost Short-term Lease, Cost Total lease cost Lease, Cost Leases Lessee, Operating Leases [Text Block] Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Independent sales network Sales Channel, Through Independent Sales Network [Member] Sales Channel, Through Independent Sales Network [Member] Direct sales network Sales Channel, Through Direct Sales Network [Member] Sales Channel, Through Direct Sales Network [Member] Retail sales Sales Channel, Through Retail Sales [Member] Sales Channel, Through Retail Sales [Member] Corporate accounts Sales Channel, Through Corporate Accounts [Member] Sales Channel, Through Corporate Accounts [Member] Other Sales Channel, Through Other Channels [Member] Sales Channel, Through Other Channels [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Product Warranty Liability [Table] Product Warranty Liability [Table] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Service-Type Warranties Service-Type Warranties [Member] Service-Type Warranties [Member] Product Warranty Liability [Line Items] Product Warranty Liability [Line Items] Other Long-Term Assets [Abstract] Other Assets, Noncurrent [Abstract] Deferred contract costs Deferred Costs, Noncurrent Tax credits Research and Development Tax Credit Receivable Research and Development Tax Credit Receivable Other Other Assets, Miscellaneous, Noncurrent 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). 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 Other Long-Term Liabilities [Abstract] Liabilities, Other than Long-term Debt, Noncurrent [Abstract] 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). Service-type warranties Contract with Customer, Liability, Noncurrent Uncertain tax positions liability, including interest Liability for Uncertainty in Income Taxes, Noncurrent Other Other Liabilities, Noncurrent 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). Percentage contribution rate of eligible employee's compensation Deferred Compensation Arrangement with Individual, Automatic Contribution Rate The percentage of annual salary that an employee receives as an automatic contribution under the plan. Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] The Luminaires Group (TLG) The Luminaires Group (TLG) [Member] The Luminaires Group (TLG) [Member] Fiscal 2020 Acquisitions Fiscal 2020 Acquisitions [Member] Fiscal 2020 Acquisitions [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Number of niche lighting brands of acquired entity Business Combination, Acquired Entity, Number of Lighting Brands Business Combination, Acquired Entity, Number of Lighting Brands Goodwill Goodwill Identifiable intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Weighted Average Amortization Period in Years Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Goodwill expected to be tax deductible Business Acquisition, Goodwill, Expected Tax Deductible Amount Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Repurchase Plan, Type and Name [Axis] Repurchase Plan by Type and Name [Domain] October 2020 Repurchase Plan October 2020 Repurchase Plan [Member] October 2020 Repurchase Plan [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Additional shares authorized for repurchase (shares) Stock Repurchase Program, Number of Additional Shares Authorized to be Repurchased Stock Repurchase Program, Number of Additional Shares Authorized to be Repurchased Principles of Consolidation Consolidation, Policy [Policy Text Block] Revenue Recognition and Shipping and Handling Fees and Costs Revenue from Contract with Customer [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable Accounts Receivable [Policy Text Block] Concentrations of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Subsequent Events Subsequent Events, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Assets Held for Sale Assets Held for Sale [Policy Text Block] Assets Held for Sale [Policy Text Block] Goodwill and Other Intangibles Goodwill and Intangible Assets, Policy [Policy Text Block] Share-Based Payments Compensation Related Costs, Policy [Policy Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Property, Plant and Equipment Depreciation, Depletion, and Amortization [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Advertising Advertising Cost [Policy Text Block] Interest Expense, Net Interest Expense, Policy [Policy Text Block] Miscellaneous Expense, Net Other Nonoperating Income (Expense) [Policy Text Block] Other Nonoperating Income (Expense) [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Income Tax Disclosure [Abstract] Provision for current federal taxes Current Federal Tax Expense (Benefit) Provision for current state taxes Current State and Local Tax Expense (Benefit) Provision for current foreign taxes Current Foreign Tax Expense (Benefit) (Benefit) provision for deferred taxes Deferred Income Tax Expense (Benefit) Total provision for income taxes Schedule of Earnings per Share, Basic and Diluted [Table] Schedule of Earnings per Share, Basic and Diluted [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Earnings per Share, Basic and Diluted [Line Items] Earnings per Share, Basic and Diluted [Line Items] Net income Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Basic weighted average shares outstanding (in shares) Common stock equivalents (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted average number of shares outstanding (in shares) Stock options excluded from diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Retirement Benefits [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Domain] Retirement Plan Tax Status [Domain] Qualified Plan Qualified Plan [Member] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Domestic plan Domestic Plan [Member] Domestic Plans UNITED STATES International Plans Foreign Plan [Member] Multiemployer Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension Plan Pension Plan [Member] Defined Contribution Plan Other Pension Plan [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Level 1,2 and 3 Fair Value, Inputs, Level 1, 2 and 3 [Member] NAV Fair Value Measured at Net Asset Value Per Share [Member] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Mutual Funds: Domestic large cap equity fund Mutual Equity Funds, Large Domestic Blend Fund [Member] Mutual Equity Funds, Large Domestic Blend Fund [Member] Mutual Funds: Foreign equity fund Mutual Equity Funds, Foreign [Member] Mutual Equity Funds, Foreign [Member] Collective trust: Domestic small cap equities Common Collective Trust [Member] Common Collective Trust [Member] Equity securities Equity Securities [Member] Short-term fixed income investments Short-term Investments [Member] Multi-strategy investments Hedge Funds, Multi-strategy [Member] Fixed-income investments Fixed Income Investments [Member] Real estate fund Real Estate Funds [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Total assets at fair value Defined Benefit Plan, Plan Assets, Amount Employer expected contribution to defined benefit plans in next fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year Defined Benefit Plan, Expected Future Benefit Payment [Abstract] 2021 Defined Benefit Plan, Expected Future Benefit Payment, Year One 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Two 2023 Defined Benefit Plan, Expected Future Benefit Payment, Year Three 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year Four 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year Five 2026-2030 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Multiemployer Plan, Pension, Significant [Abstract] Multiemployer Plan, Pension, Significant [Abstract] Number of multi-employer plans Number of Multiemployer Plans Number of Multiemployer Plans Contributions to multi-employer plans Multiemployer Plan, Employer Contribution, Cost Defined Benefit Plan, Additional Information [Abstract] Defined contribution plan, cost recognized Defined Contribution Plan, Cost Common stock included in defined contribution plan, market value Common Stock, Value, Outstanding 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 Foreign currency translation adjustments - Before Tax Amount Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Foreign currency translation adjustments - Tax (Expense) or Benefit Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Foreign currency translation adjustments - Net of Tax Amount Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Foreign currency translation adjustments Defined benefit pension plans - Before Tax Amounts Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract] Actuarial (losses) gains Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax 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 Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 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 Total defined benefit plans, net - before tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Defined benefit pension plans - Tax (Expense) or Benefit Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax [Abstract] Actuarial (losses) gains Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax 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 Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, 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 Total defined benefit plans, net - tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Defined benefit pension plans - Net of Tax Amount Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Actuarial (losses) gains Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax 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 Amortization of Defined benefit pension items - Actuarial losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax 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 Total defined benefit plans, net - net of tax Other comprehensive income (loss) before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Other comprehensive income (loss), tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Schedule of Domestic and International Pension Plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Schedule of Net Periodic Pension Cost Schedule of Net Benefit Costs [Table Text Block] Schedule of Weighted Average Assumptions Used Defined Benefit Plan, Assumptions [Table Text Block] Schedule of Pension Plan Asset Allocation Schedule of Allocation of Plan Assets [Table Text Block] Schedule of Expected Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Authority [Axis] Income Tax Authority [Domain] Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] State and Local Jurisdiction State and Local Jurisdiction [Member] Foreign Tax Authority Foreign Tax Authority [Member] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Effective Income Tax Rate Reconciliation, Amount [Abstract] Federal income tax computed at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income tax, net of federal income tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign permanent differences and rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Research and development tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount Components of Deferred Tax Assets and Liabilities [Abstract] Deferred income tax liabilities: Components of Deferred Tax Liabilities [Abstract] Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Goodwill and intangibles Deferred Tax Liabilities, Goodwill and Intangible Assets Operating lease right of use asset Deferred Tax Asset, Operating Lease Right-of-use Asset Deferred Tax Liabilities, Operating Lease Right-of-use Asset Other liabilities Deferred Tax Liabilities, Other Total deferred income tax liabilities Deferred Tax Liabilities, Gross Deferred income tax assets: Components of Deferred Tax Assets [Abstract] Self-insurance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance Pension Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Net operating losses Deferred Tax Assets, Operating Loss Carryforwards Other accruals not yet deductible Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other Operating lease liabilities Deferred Tax Assets, Operating Lease Liabilities Deferred Tax Assets, Operating Lease Liabilities Other assets Deferred Tax Assets, Other Total deferred income tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Net deferred income tax liabilities Deferred Tax Liabilities, Net Undistributed earnings and original investments in foreign subsidiaries Undistributed Earnings of Foreign Subsidiaries Deferred income tax liability for certain foreign withholding taxes and U.S. state taxes Deferred Tax Liabilities, Undistributed Foreign Earnings Tax benefit related to the enactment of the TCJA Tax Cuts and Jobs Act, Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act, Provisional Income Tax Expense (Benefit) Tax benefit to decrease deferred income taxes to the revised statutory rate Tax Cuts and Jobs Act, Change in Tax Rate, Provisional Income Tax Expense (Benefit) Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act. Current estimated benefit for transition tax Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense Amount of reasonable estimate for income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act. State tax credit carryforwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Operating loss carryforwards Operating Loss Carryforwards Unrecognized tax benefits Unrecognized Tax Benefits Unrecognized tax benefits that if recognized would affect annual effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Total accrued interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued Accruals related to income tax penalties Unrecognized Tax Benefits, Income Tax Penalties Accrued Quarterly Financial Information Disclosure [Abstract] Gross profit Net income 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). Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trade Names Trade Names [Member] Acquired Indefinite-lived Intangible Assets [Line Items] Acquired Indefinite-lived Intangible Assets [Line Items] Unamortized trade names, Gross Carrying Amount Indefinite-lived Intangible Assets (Excluding Goodwill) Intangible asset impairment charge Impairment of Intangible Assets (Excluding Goodwill) Number of impaired intangible assets Number of Impaired Intangible Assets Number of Impaired Intangible Assets Number of unimpaired intangible assets Number of Unimpaired Intangible Assets Number of Unimpaired Intangible Assets Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] 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. Trademarks and trade names Trademarks and Trade Names [Member] Distribution network Distribution Rights [Member] Customer relationships Customer Relationships [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Begining balance Additions from acquired businesses Goodwill, Acquired During Period Adjustments to provisional amounts from acquired businesses Goodwill, Purchase Accounting Adjustments Foreign currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Ending balance Amortized intangible assets, gross carrying amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Amortization expense of finite-lived intangible assets Amortization of Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Amortization expense in fiscal 2021 Finite-Lived Intangible Asset, Expected Amortization, Year One Amortization expense in fiscal 2022 Finite-Lived Intangible Asset, Expected Amortization, Year Two Amortization expense in fiscal 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Three Amortization expense in fiscal 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Four Amortization expense in fiscal 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Five Number of reporting units Number of Reporting Units Goodwill impairment charge Goodwill, Impairment Loss Subsequent Event Subsequent Events [Text Block] Retirement Plan Type [Axis] Fixed income securities Fixed Income Securities [Member] Real estate Real Estate [Member] Net actuarial loss Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Settlement Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Recognized actuarial loss Defined Benefit Plan, Recognized Actuarial Net Gain (Loss) The amount of actuarial net gain (loss) recognized in net periodic benefit cost. Net periodic pension cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Defined Benefit Plan, Assumptions Used in Calculations [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Expected return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 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 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 Defined Benefit Plan, Information about Plan Assets [Abstract] Defined Benefit Plan, Plan Assets, Allocations [Abstract] Targeted asset allocation, percentage Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Pension plan asset allocation, percentage Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Interest Revenue (Expense), Net [Abstract] Interest expense Interest Expense Interest income Investment Income, Interest Interest expense, net Income Taxes Income Tax Disclosure [Text Block] Special Charges Restructuring and Related Activities Disclosure [Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Year one Debt Instrument, Redemption, Period One [Member] Year two Debt Instrument, Redemption, Period Two [Member] Year three Debt Instrument, Redemption, Period Three [Member] Year four Debt Instrument, Redemption, Period Four [Member] Year five Debt Instrument, Redemption, Period Five [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Eurocurrency Rate Eurocurrency Rate [Member] Eurocurrency Rate [Member] Base Rate Base Rate [Member] Lines of Credit Line of Credit [Member] Unsecured Term Loan Unsecured Debt [Member] Debt Instrument [Axis] Debt Instrument, Name [Domain] New Revolving Credit Facility New Revolving Credit Facility [Member] New Revolving Credit Facility [Member] Revolving credit facility borrowings Revolving Credit Facility [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Revolving credit facility Line of Credit Facility, Maximum Borrowing Capacity Term of facility Debt Instrument, Term Borrowings outstanding under credit facility Long-term Line of Credit Borrowings outstanding under term loan facility Long-term Debt Long-term debt Long-term Debt, Excluding Current Maturities Applicable margins as determined by leverage ratio Debt Instrument, Basis Spread on Variable Rate Number of installments Debt Instrument, Borrowing Period, Number of Installments Debt Instrument, Borrowing Period, Number of Installments Periodic payment maturity as percent of principal (percent) Debt Instrument, Periodic Payment, Maturity, Percent of Principal Debt Instrument, Periodic Payment, Maturity, Percent of Principal Commitment fees rate Line of Credit Facility, Commitment Fee Percentage Minimum interest coverage ratio Line of Credit Facility, Covenant Terms, Interest Coverage Ratio, Minimum Line of Credit Facility, Covenant Terms, Interest Coverage Ratio, Minimum Maximum leverage ratio Line of Credit Facility, Covenant Terms, Leverage Ratio, Maximum Line of Credit Facility, Covenant Terms, Leverage Ratio, Maximum Additional borrowing capacity under revolving credit facility Line of Credit Facility, Current Borrowing Capacity Outstanding letters of credit Letters of Credit Outstanding, Amount Defined Benefit Plan, Funding Status [Axis] Defined Benefit Plan, Funding Status [Axis] Defined Benefit Plan, Funding Status [Domain] Defined Benefit Plan, Funding Status [Domain] Pensions plans in which benefit obligation exceeds plan assets: Defined Benefit Plan, Underfunded Plan [Member] Net periodic pension cost Number of early retirement participants Defined Benefit Plan, Number of Early Retirement Participants Defined Benefit Plan, Number of Early Retirement Participants Change in Benefit Obligation: Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Benefit obligation at beginning of year Defined Benefit Plan, Benefit Obligation Amendments Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment Actuarial losses Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Settlement gain Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Other Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Benefit obligation at end of year Change in plan assets: Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets at beginning of year Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Other Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Fair value of plan assets at end of year Funded status at end of year: Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Funded status at the end of year Defined Benefit Plan, Funded (Unfunded) Status of Plan Amounts recognized in the consolidated balance sheets consist of: Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Current liabilities Liability, Defined Benefit Plan, Current Non-current liabilities Liability, Defined Benefit Plan, Noncurrent Net amount recognized in consolidated balance sheets Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Pre-tax amounts in accumulated other comprehensive loss: Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] Prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Net actuarial loss Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Amounts in accumulated other comprehensive loss Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Pensions plans in which benefit obligation exceeds plan assets: Defined Benefit Plan, Pension Plan with Project Benefit Obligation in Excess of Plan Assets [Abstract] Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Accumulated benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Estimated amounts that will be amortized from accumulated comprehensive income over the next fiscal year: Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract] Prior service cost Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year Concentration Risk [Table] Concentration Risk [Table] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] One Customer One Customer [Member] One Customer [Member] Customer Concentration Risk Customer Concentration Risk [Member] Receivables Accounts Receivable [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Portion of receivables (percent) Accounts receivable, less reserve for doubtful accounts of $2.6 and $1.0, respectively Accounts Receivable, after Allowance for Credit Loss, Current Inventories Prepayments and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property, plant, and equipment, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Deferred income taxes Deferred Income Tax Assets, Net Other long-term assets Other Assets, Noncurrent Total assets Assets Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Current maturities of debt Long-term Debt, Current Maturities Accrued compensation Employee-related Liabilities, Current Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Accrued pension liabilities Deferred income taxes Deferred Income Tax Liabilities, Net Self-insurance liabilities Self Insurance Reserve Other long-term liabilities Total liabilities Liabilities Commitments and Contingencies Commitments and Contingencies Preferred stock, $0.01 par value; 50,000,000 shares authorized; none issued Preferred Stock, Value, Issued Common stock, $0.01 par value; 500,000,000 shares authorized; 53,885,165 and 53,778,155 issued, respectively Paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock, at cost — 15,012,449 and 14,325,197 shares, respectively Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Schedule of Acquired Finite-Lived Intangible Assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Schedule of Acquired Indefinite-Lived Intangible Assets Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table Text Block] Schedule of Other Long-Term Assets Schedule of Other Assets, Noncurrent [Table Text Block] Schedule of Other Long-Term Liabilities Schedule of Other Liabilities, Noncurrent [Table Text Block] Tabular disclosure of noncurrent liabilities. Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Interest Expense, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Comprehensive Income (Loss) Comprehensive Income (Loss) [Table Text Block] Pension and Defined Contribution Plans Retirement Benefits [Text Block] Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Loss Items AOCI Attributable to Parent [Member] Treasury Stock, at cost Treasury Stock [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Beginning balance (in shares) Common Stock, Shares, Outstanding Other comprehensive income (loss) Reclassification of stranded tax effects of the Tax Cuts and Jobs Act Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act. Share-based payment amortization, issuances, and cancellations (in shares) Share-based payment amortization, issuances, and cancellations Employee stock purchase plan issuances Stock Issued During Period, Value, Employee Stock Purchase Plan Cash dividends paid on common stock Dividends, Common Stock, Cash Stock options exercised Repurchases of common stock (in shares) Stock Repurchased During Period, Shares Repurchases of common stock Stock Repurchased During Period, Value Ending balance Ending balance (in shares) Revenue Recognition Revenue from Contract with Customer [Text Block] Supplemental Disaggregated Information Segment Reporting Disclosure [Text Block] 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. Income tax benefit for share-based compensation Share-based Payment Arrangement, Expense, Tax Benefit Net excess tax expense (benefit) related to share-based payment cost Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount Research and development expense Research and Development Expense Advertising costs Advertising Expense Common Stock and Related Matters Stockholders' Equity Note Disclosure [Text Block] Significant Accounting Policies Significant Accounting Policies [Text Block] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Unrecognized tax benefits balance at beginning of year Additions based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions for tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Reductions due to settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Reductions due to lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Unrecognized tax benefits balance at end of year Amount 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 from contract with customers by sales channel Disaggregation of Revenue [Table Text Block] Contract with Customer, Duration [Axis] Contract with Customer, Duration [Axis] Contract with Customer, Duration [Domain] Contract with Customer, Duration [Domain] Short-term Contract with Customer Short-term Contract with Customer [Member] Net sales 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] 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] Refund liabilities Contract with Customer, Refund Liability Right of return assets Contract with Customer, Right to Recover Product Portion of revenues (percent) Revenues recognized from beginning balances of contract liabilities Contract with Customer, Liability, Revenue Recognized SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Schedule II - Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Future Undiscounted Payments Lessee, Operating Lease, Liability, Maturity [Table Text Block] Components of Total Lease Costs Lease, Cost [Table Text Block] Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Inventory reserves: SEC Schedule, 12-09, Reserve, Inventory [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Balance at Beginning of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Costs and Expenses SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Balance at End of Year Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Held-for-sale Disposal Group, Held-for-sale, Not Discontinued Operations [Member] 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] Number of buildings classified as held for sale Disposal Group, Including Discontinued Operation, Number of Assets Disposal Group, Including Discontinued Operation, Number of Assets Assets held for sale, total Disposal Group, Including Discontinued Operation, Assets Total work force covered by collective bargaining agreements Workforce Subject to Collective Bargaining Arrangements [Member] Workforce subject to Collective bargaining arrangements expiring within one year Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Lighting Science Group Patent Litigation Lighting Science Group Patent Litigation [Member] Lighting Science Group Patent Litigation [Member] Securities Class Action Securities Class Action [Member] Securities Class Action [Member] Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Former Executive Former Executive [Member] Former Executive [Member] Recorded Unconditional Purchase Obligation, Fiscal Year Maturity Schedule [Abstract] Purchase obligations in fiscal 2021 Recorded Unconditional Purchase Obligation, to be Paid, Year One Purchase obligations in fiscal 2022 Recorded Unconditional Purchase Obligation, to be Paid, Year Two Purchase obligations extending beyond August 31, 2022 Recorded Unconditional Purchase Obligation Due after Second Year Recorded Unconditional Purchase Obligation Due after Second Year Number of patents under alleged infringement claims (patents) Loss Contingency, Patents Allegedly Infringed, Number Number of patents under dropped claims (patents) Loss Contingency, Patents Found Not Infringed, Number Number of former executives accused Loss Contingency, Number of Defendants Number of initial claims under class action Loss Contingency, Claims Dismissed, Number Number of claims dismissed Loss Contingency, New Claims Filed, Number Number of claims allowed Loss Contingency, Pending Claims, Number Standard product warranty period Standard Product Warranty Period Standard Product Warranty Period Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Beginning balance Standard Product Warranty Accrual Warranty and recall costs Standard Product Warranty Accrual, Increase for Warranties Issued Payments and other deductions Standard Product Warranty Accrual, Decrease for Payments Acquired warranty and recall liabilities Standard and Extended Product Warranty Accrual, Additions from Business Acquisition ASC 606 adjustments Standard Product Warranty Accrual, Increase (Decrease) for New Accounting Pronouncements Standard Product Warranty Accrual, Increase (Decrease) for New Accounting Pronouncements Ending balance Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Senior Unsecured Notes Industrial Revenue Bond Debt Instrument [Axis] Debt Instrument, Name [Domain] Unsecured public notes due December 2019 Unsecured Notes [Member] Unsecured Notes [Member] Borrowings under Term Loan Facility Industrial revenue bond Bonds [Member] Fixed-rate Bank Loans 2016 Fixed-rate Bank Loans [Member] 2016 Fixed-rate Bank Loans [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt outstanding Long-term Debt, Gross Senior unsecured public notes due December 2019, unamortized discount and deferred costs Debt Instrument, Unamortized Discount Total debt Long-term Debt, Fiscal Year Maturity [Abstract] Long-term Debt, Fiscal Year Maturity [Abstract] 2021 Long-Term Debt, Maturity, Year One 2022 Long-Term Debt, Maturity, Year Two 2023 Long-Term Debt, Maturity, Year Three 2024 Long-Term Debt, Maturity, Year Four 2025 Long-Term Debt, Maturity, Year Five After 2024 Long-Term Debt, Maturity, after Year Five Schedule of Differences between Reported Amount and Reporting Currency Denominated Amount [Table] Schedule of Differences between Reported Amount and Reporting Currency Denominated Amount [Table] Foreign Currency Items Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Miscellaneous expense (income), net Miscellaneous Expense (Income), Net [Member] Miscellaneous Expense (Income), Net [Member] 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] Income (expense) relating to foreign currency items Foreign Currency Transaction Gain (Loss), Realized Gain on sale of business Gain (Loss) on Disposition of Business Amounts reclassified from accumulated other comprehensive loss Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Schedule of Changes in Product Warranty and Recall Reserves Schedule of Product Warranty Liability [Table Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Share-based payment expense Share-based Payment Arrangement, Noncash Expense Loss on the sale or disposal of property, plant, and equipment Gain (Loss) on Disposition of Property Plant Equipment Asset impairments Asset Impairment Charges Deferred income taxes Deferred Income Taxes and Tax Credits Gain on sale of business Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepayments and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from sale of property, plant, and equipment Proceeds from Sale of Property, Plant, and Equipment Acquisition of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from sale of business Proceeds from Divestiture of Businesses Other investing activities Payments for (Proceeds from) Other Investing Activities Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings on credit facility Proceeds from Lines of Credit Repayments of borrowings on credit facility Repayments of Lines of Credit Repayments of long-term debt Repayments of Long-term Debt Repurchases of common stock Payments for Repurchase of Common Stock Proceeds from stock option exercises and other Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Payments of taxes withheld on net settlement of equity awards Payment, Tax Withholding, Share-based Payment Arrangement Dividends paid Payments of Ordinary Dividends, Common Stock Net cash used for financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents at beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at end of year Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Income taxes paid Income Taxes Paid Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Accumulated Other Comprehensive Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Defined Benefit Pension Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Accumulated Other Comprehensive Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Amounts reclassified from accumulated other comprehensive loss Acquisitions Business Combination Disclosure [Text Block] Details of Special Charges Incurred Restructuring and Related Costs [Table Text Block] Schedule of Changes in Remaining Reserves Schedule of 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