Debt Disclosure [Abstract] Debt Disclosure [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Notes Senior Notes [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 3.5% Notes due 2027 3.5% Notes due June 15, 2027 [Member] 3.5% Notes due June 15, 2027 [Member] Senior Notes due 2017 Senior Notes due 2017 [Member] Senior Notes due 2017 [Member] Senior Notes due 2020 Senior Notes due 2020 [Member] Senior Notes due 2020 [Member] Senior Notes due 2025 Senior Notes due 2025 [Member] Senior Notes due 2025 [Member] 2015 Senior Notes 2015 Senior Notes [Member] 2015 Senior Notes [Member] Senior Notes due 2022 Senior Notes due 2022 [Member] Senior Notes due 2022 [Member] 2012 Senior Notes 2012 Senior Notes [Member] 2012 Senior Notes [Member] Debt Disclosure [Line Items] Debt Instrument [Line Items] Face amount Debt Instrument, Face Amount Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Unamortized discount Debt Instrument, Unamortized Discount Debt issuance costs Debt Issuance Costs, Gross Proceeds from debt, net of issuance costs Proceeds from Debt, Net of Issuance Costs Debt redemption percentage of principle amount (as a percent) Debt Issuance Redemption Discount Premium Percentage Of Principal Amount Debt Issuance Redemption Discount Premium Percentage Of Principal Amount Fair value disclosure Debt Instrument, Fair Value Disclosure Debt redemption price Debt Instrument, Redemption Price Debt Instrument, Redemption Price Repayments of debt Repayments of Debt Unsecured revolving credit facility Line of Credit Facility, Maximum Borrowing Capacity Unsecured revolving credit facility, option to request an increase in the amount of the credit facility up to Line of Credit Facility, Option to Increase Borrowing Capacity Line of Credit Facility, Option to Increase Borrowing Capacity Line of credit facility, outstanding borrowings Long-term Line of Credit Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Retirement Benefits [Abstract] Retirement Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] $28.56 - $36.44 Range 1 [Member] Range 1 $38.55 - $38.55 Range 2 [Member] Range 2 $41.62 - $41.62 Range3 [Member] Range 3 Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Range of per-share exercise prices, Lower Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerLimit Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Limit Range of per-share exercise prices, Upper Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperLimit Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Limit Options Vested and Exercisable, Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Options Vested and Exercisable, Weighted average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Quarterly Financial Information Disclosure [Abstract] Net revenue Revenue, Net Gross profit Gross Profit Loss from operations Operating Income (Loss) Provision for income taxes Income Tax Expense (Benefit) Net loss Net Income (Loss) Attributable to Parent Basic net loss per share (usd per share) Earnings Per Share, Basic Diluted net loss per share (usd per share) Earnings Per Share, Diluted Loss from operations includes the following items: income from operations includes following items [Abstract] income from operations includes following items [Abstract] Stock-based compensation expense Stock Based Compensation, Not Including Accelerated Compensation Expense Stock Based Compensation, Not Including Accelerated Compensation Expense Amortization of acquisition related intangibles Amortization of Acquired Intangible Assets1 Amortization of Acquired Intangible Assets1 CEO transition costs Chief Executive Officer Transition Costs Chief Executive Officer Transition Costs Restructuring charges and other facility exit costs, net Restructuring Charges, Net of Adjustments Restructuring Charges, Net of Adjustments Funded percentage Defined Benefit Plan, Funded Percentage Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Actual plan asset allocations Defined Benefit Plan, Actual Plan Asset Allocations Estimated future employer contributions in next fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year Expected long-term rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Defined Contribution Plan [Table] Defined Contribution Plan [Table] 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] Foreign Plan Foreign Plan [Member] Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Maximum annual contributions per employee Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Cost Recognized Defined Contribution Plan, Cost Contributions paid by employer Defined Contribution Plan, Employer Discretionary Contribution Amount Segment Reporting [Abstract] Segment, Geographic and Product Family Information Segment Reporting Disclosure [Text Block] Compensation Related Costs Share Based Payments Disclosure [Table] Compensation Related Costs Share Based Payments Disclosure [Table] Compensation Related Costs Share Based Payments Disclosure [Table] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Chief Executive Officer Chief Executive Officer [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Options and Restricted Stock Stock Options and Restricted Stock [Member] Stock Options and Restricted Stock [Member] Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) Restricted Stock Units (RSUs) and Performance Shares [Member] Restricted Stock Units (RSUs) and Performance Shares [Member] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Performance Stock Units (PSUs) Performance Shares [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Employee Stock Plan 2012 Employee Stock Plan 2012 [Member] Employee Stock Plan 2012 [Member] Directors stock plan 2012 Directors stock plan 2012 [Member] Directors stock plan 2012 [Member] Outside directors stock plan 2012 Outside directors stock plan 2012 [Member] Outside directors stock plan 2012 [Member] ESP Plan Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Year One Share-based Compensation Award, Tranche One [Member] Year Two Share-based Compensation Award, Tranche Two [Member] Year Three Share-based Compensation Award, Tranche Three [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Compensation Related Costs Share Based Payments Disclosure [Line Items] Compensation Related Costs Share Based Payments Disclosure [Line Items] Compensation Related Costs Share Based Payments Disclosure [Line Items] Number of active stock plans Number of Active Stock Plans Number of Active Stock Plans Number of additional share authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Shares of common stock reserved for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Restricted stock award, net of forfeitures (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Shares forfeited (in shares) Stock Issued During Period, Shares, Share-based Compensation, Forfeited Shares granted to shares issued (in shares) Share-Based Compensation Shares Granted to Share Issued Share-Based Compensation Shares Granted to Share Issued Grants in period, net of forfeitures (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share based payment award options expiration term (in years) Share based compensation arrangement by share based payment award options expiration term Share based compensation arrangement by share based payment award options expiration term Shares available for future issuance (in shares) Employee Stock Plan Shares Remaining Available For Issuance Shares remaining available for issuance for the plan. Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Reduction of shares reserved for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Reduction of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Reduction of Shares Authorized Granted (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 Fair value of units vested in period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Restricted stock granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share based compensation expense, restricted stock units Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Total compensation cost related to non-vested awards not yet recognized Employee Service Share Based Compensation Unrecognized Compensation Costs On Nonvested Restricted Shares Employee Service Share based Compensation, Unrecognized Compensation Costs on Nonvested Restricted Shares Total compensation cost related to non-vested awards not yet recognized, weighted average period of recognition (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Number of awards granted but unreleased Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Accelerated stock based compensation costs Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Vesting percentage (up to percentage) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Percentage of compensation that eligible employees can use to purchase common stock, maximum Employee Stock Purchase Plan Maximum Percentage Of Compensation To Purchase Shares By Eligible Participants Employee Stock Purchase Plan, Maximum Percentage of Compensation to Purchase Shares By Eligible Participants Percentage of fair market value eligible employees can purchase common stock, minimum Employee Stock Purchase Plan Minimum Percentage Of Common Stock Fair Value Defined To Purchase Shares By Eligible Participants Employee Stock Purchase Plan, Minimum Percentage of Common Stock Fair Value Defined to Purchase Shares By Eligible Participants Number of exercise periods Employee Stock Purchase Plan, Number of Exercise Periods Employee Stock Purchase Plan, Number of Exercise Periods Term of exercise period Employee Stock Purchase Plan, Term of Exercise Period Employee Stock Purchase Plan, Term of Exercise Period Term of offering period Employee Stock Purchase Plan, Term of Offering Period Employee Stock Purchase Plan, Term of Offering Period Employee service share based compensation recognized compensation costs on nonvested restricted shares Employee Service Share Based Compensation recognized Compensation Costs On Nonvested Restricted Shares Employee Service Share Based Compensation recognized Compensation Costs On Nonvested Restricted Shares Investments, All Other Investments [Abstract] Financial Instruments Financial Instruments Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] U.S. UNITED STATES Other Americas Other Americas [Member] Other Americas Total Americas Americas [Member] Europe, Middle East, and Africa EMEA [Member] Asia Pacific Asia Pacific [Member] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Architecture, Engineering and Construction Architecture Engineering And Construction [Member] Architecture, Engineering and Construction Manufacturing Manufacturing [Member] Manufacturing AutoCAD and AutoCAD LT AutoCAD and AutoCAD LT Family [Member] AutoCAD and AutoCAD LT Family [Member] Media and Entertainment Media And Entertainment [member] Media and Entertainment Other Other [Member] Other [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total long-lived assets Long-Lived Assets Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign Exchange Contracts Foreign Exchange Contract [Member] Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Prepaid expenses and other current assets Prepaid Expenses and Other Current Assets [Member] Other assets Other Assets [Member] Other Accrued Liabilities Other Accrued Liabilities [Member] Other Accrued Liabilities [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Net Unrealized Gains (Losses) on Derivative Instruments Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Notional amount of foreign currency forward contracts not designated as cash flow hedges Derivative, Notional Amount Net loss expected to be recognized into earnings Stockholders' Equity Attributable to Parent Derivative asset, net Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative liability, net Derivative Liability, Fair Value, Amount Not Offset Against Collateral Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plan, Asset Categories [Axis] Defined Benefit Plan, Asset Categories [Axis] Plan Asset Categories [Domain] Plan Asset Categories [Domain] Insurance contracts Insurance Contracts [Member] Insurance Contracts [Member] Other Investments Other Investments [Member] Investments Investments [Member] Cash Cash and Cash Equivalents [Member] Investment Fund valued using net asset value Investment Fund [Member] Investment Fund [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Fair value of plan assets Defined Benefit Plan, Fair Value of Plan Assets Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent [Abstract] Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent [Abstract] Prior service credit for period Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax Net (gain) loss for period Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Effect of settlement Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Gain (Loss), before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Gain (Loss), before Tax Effect of curtailment Other Comprehensive Income (Loss), Defined Benefit Plan, Curtailment Gain (Loss), before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Curtailment Gain (Loss), before Tax Amortization of prior service credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Amortization of net loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Other comprehensive (income) loss Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent Schedule of Changes in Projected Benefit Obligations Schedule of Defined Benefit Plans Disclosures [Table Text Block] Schedule of Amounts Recognized in Balance Sheet Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] Schedule of Allocation of Plan Assets Schedule of Allocation of Plan Assets [Table Text Block] Schedule of Expected Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Schedule of Net Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Schedule of Amounts Recognized in Other Comprehensive Income (Loss) Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Net Periodic Benefit Cost Not yet Recognized Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Assumptions Used Schedule of Assumptions Used [Table Text Block] Valuation and Qualifying Accounts [Abstract] Statement [Table] Statement [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for doubtful accounts Allowance for Doubtful Accounts [Member] Partner Program reserves Partner Program Reserves [Member] Partner Program Reserves [Member] Restructuring Business Restructuring Reserves [Member] Statement [Line Items] Statement [Line Items] Movement in Valuation Allowances and Reserves [Roll Forward] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at the Beginning of Year Valuation Allowances and Reserves, Balance Additions Charged to Costs and Expenses or Revenues Valuation Allowances and Reserves, Additions for Charges to Cost and Expense Deductions and Write-Offs Valuation Allowances and Reserves, Deductions Balance at End of Year Accounting Policies [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Software and Software Development Costs Software and Software Development Costs [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Abstract] Useful Life Property, Plant and Equipment, Useful Life Depreciation Depreciation Computer hardware, at cost Computer Hardware Gross Computer Hardware, Gross Computer software, at cost Capitalized Computer Software, Gross Leasehold improvements, land and buildings, at cost Building And Leasehold Improvements Gross Carrying amount at the balance sheet date of long-lived, depreciable assets that include building structures held for productive use including any addition, improvement, or renovation to the structure as well as the addition of improvements to assets held under lease arrangements. Furniture and equipment, at cost Furniture and Fixtures, Gross Computer software, hardware, leasehold improvements, furniture, and equipment, at cost Property, Plant and Equipment, Gross Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Computer software, hardware, leasehold improvements, furniture, and equipment, net Property, Plant and Equipment, Net 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] Other Series of Individually Immaterial Business Acquisitions [Member] Acquired 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] Developed technologies Developed Technology Rights [Member] Customer relationships Customer Relationships [Member] Trade name Trade Names [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Goodwill Goodwill Deferred revenue (current and non-current) Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Deferred tax liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Net tangible (liabilities) assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Excluding Intangible Assets And Deferrals Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Excluding Intangible Assets And Deferrals Total Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Equity [Abstract] Stockholders Equity Note [Table] Stockholders Equity Note [Table] Stockholders Equity Note [Table] Share Repurchases, by Program [Axis] Share Repurchases, by Program [Axis] Share Repurchases, by Program [Axis] Share Repurchases, by Program [Domain] Share Repurchases, by Program [Domain] Share Repurchases, by Program [Domain] Common Stock Repurchase Program Common Stock Repurchase Program [member] Common Stock Repurchase Program Stockholders Equity Note [Line Items] Stockholders Equity Note [Line Items] Stockholders Equity Note [Line Items] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Repurchase and retirement of common shares (in shares) Stock Repurchased and Retired During Period, Shares Average repurchase price per share (usd per share) Treasury Stock Acquired, Average Cost Per Share Common stock shares remained available for repurchase under repurchase plans (in shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Net Unrealized Gains (Losses) on Available for Sale Securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Defined Benefit Pension Components Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Foreign Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated other comprehensive (loss) income AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning Balance Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Pre-tax (gains) losses reclassified from accumulated other comprehensive income Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Tax effects Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending Balance Statement of Comprehensive Income [Abstract] Net gain (loss) on derivative instruments, tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent Change in net unrealized (loss) gain on available-for-sale securities, tax Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent Change in unfunded portion of pension plans, tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent Net change in cumulative foreign currency translation gain (loss), tax Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Stockholders' (Deficit) Equity Stockholders' Equity Note Disclosure [Text Block] Employee and Director Stock Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Financial Statement Schedule II Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract] Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract] Amortization of prior service credit Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year Amortization of the net loss Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year Total amortization Defined Benefit Plan, Expected Amortization, Next Fiscal Year Equity Compensation Plans Approved by Security Holders Equity Compensation Plans Approved By Security Holders [Member] Equity Compensation Plans Approved by Security Holders Number of securities to be issued upon exercise of outstanding options (in shares) Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares To Be Issued Upon Exercise Of Outstanding Awards Share Based Compensation Arrangement by Share Based Payment Award, Number of Shares to be Issued Upon Exercise of Outstanding Awards Weighted-average exercise price (per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Shares available for future issuance (in shares) Statement of Financial Position [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share 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, shares outstanding (in shares) Common Stock, Shares, Outstanding Expected Future Amortization Expense for Purcahsed Technologies, Customer Relationships and Trade Name [Abstract] Expected Future Amortization Expense for Purcahsed Technologies, Customer Relationships and Trade Name [Abstract] 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Total Finite-Lived Intangible Assets, Estimated Future Amortization Expense Finite-Lived Intangible Assets, Estimated Future Amortization Expense Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Customer Relationships, Trade Names, Patents, and User List Customer Relationships, Trade Names, Patents, and User List [Member] Customer Relationships, Trade Names, Patents, and User List [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite-lived intangible asset, useful life Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Assets, Net [Abstract] Amortization of intangible assets Amortization of Intangible Assets Developed technologies, at cost Purchased technologies at cost Finite Lived Purchased Technologies Gross Customer relationships, trade names, patents, and user lists, at cost Other Finite-Lived Intangible Assets, Gross Other intangible assets, at cost Finite-Lived Intangible Assets, Gross Less: Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Other intangible assets, net Finite-Lived Intangible Assets, Net Weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Future Minimum Lease Payments [Abstract] Future Minimum Lease Payments [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Future minimum lease payments required Operating Leases, Future Minimum Payments Due Less: Sublease income Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Future minimum lease payments required, net Operating Leases Future Minimum Payments Due Net Operating Leases Future Minimum Payments Due Net Rent expense Operating Leases, Rent Expense Provision for income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Differences between the U.S. statutory rate and the aggregate income tax provision Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Components of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Unrecognized Tax Benefits Reconciliation, Table Unrecognized Tax Benefits Reconciliation, Table [Table Text Block] Unrecognized Tax Benefits Reconciliation, Table [Text Block] Cost Cost [Abstract] Cost [Abstract] Due within in 1 year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due in 1 year through 5 years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Due in 5 years through 10 years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after 10 years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Total Available-for-sale Debt Securities, Amortized Cost Basis Fair Value Fair Value Disclosures [Abstract] Due within in 1 year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due in 1 year through 5 years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Due in 5 years through 10 years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after 10 years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Total Available-for-sale Securities, Debt Securities Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Interest and Other Income, net [Abstract] Interest and Other Income, net [Abstract] Interest and Other Expense, net Other Income and Other Expense Disclosure [Text Block] Earnings Per Share [Abstract] Net Loss Per Share Earnings Per Share [Text Block] Interest and Other Income, net Interest and Other Income [Table Text Block] Business Nature of Operations [Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Change in Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Foreign Currency Translation and Transactions Foreign Currency Transactions and Translations Policy [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Marketable Securities and Privately Held Company Investments Marketable Securities, Policy [Policy Text Block] Accounts Receivable, Net Trade and Other Accounts Receivable, Policy [Policy Text Block] 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Stock-Based Compensation Expense Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Advertising Expenses Advertising Costs, Policy [Policy Text Block] Net (Loss) Income Per Share Earnings Per Share, Policy [Policy Text Block] Defined Benefit Pension Plans Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block] Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Calculation of Numerator and Denominator in Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Federal: Federal Income Tax Expense (Benefit), Continuing Operations [Abstract] Current Current Federal Tax Expense (Benefit) Deferred Deferred Federal Income Tax Expense (Benefit) State: State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract] Current Current State and Local Tax Expense (Benefit) Deferred Deferred State and Local Income Tax Expense (Benefit) Foreign: Foreign Income Tax 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Cash Provided by (Used in) Investing Activities [Abstract] Purchases of marketable securities Payments to Acquire Marketable Securities Sales of marketable securities Proceeds from Sale of Available-for-sale Securities Maturities of marketable securities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Capital expenditures Payments for Capital Improvements Other investing activities Payments to Acquire Investments Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Taxes paid related to net share settlement of equity awards Payments Related to Tax Withholding for Share-based Compensation Repurchase and retirement of common shares Payments for Repurchase of Common Stock Proceeds from debt, net of discount Proceeds from Issuance of Long-term Debt Repayments of debt Repayments of Lines of Credit Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash (used in) provided by 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 and Cash Equivalents Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of fiscal year Cash and cash equivalents at end of fiscal year Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid during the year for interest Interest Paid Net cash paid during the year for income taxes Income Taxes Paid, Net Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Fair Value, Assets and Liabilities Measured on a Recurring Basis Axis Fair Value, Assets and Liabilities Measured on a Recurring Basis [Axis] Fair Value, Assets and Liabilities Measured on a Recurring Basis Axis Fair Value Assets, by Type [Domain] Fair Value Assets, by Type [Domain] Fair Value Assets, by Type [Domain] Rabbi Trust Rabbi Trust Member Rabbi Trust Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Marketable securities Marketable Securities Trading securities Deferred compensation liability current Deferred Compensation Liability, Current Deferred compensation liability non-current Deferred Compensation Liability, Classified, Noncurrent Income Statement [Abstract] Net revenue: Revenue, Net [Abstract] Total maintenance and subscription revenue Total Maintenance and Subscription Revenue Total Maintenance and Subscription Revenue Cost of revenue: Cost of Revenue [Abstract] Cost of maintenance and subscription revenue Cost of license and other revenue Gross profit Operating expenses: Operating Expenses [Abstract] Marketing and sales Selling and Marketing Expense Research and development Research and Development Expense General and administrative General and Administrative Expense Amortization of purchased intangibles Total operating expenses Operating Expenses (Loss) income from operations Interest and other expense, net Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Net loss Weighted average shares used in computing basic net loss per share (in shares) Weighted average shares used in computing diluted net loss per share (in shares) Scenario, Forecast Scenario, Forecast [Member] Deferred Revenue Deferred Revenue [Member] Deferred Revenue [Member] Capitalized Sales Commission Costs Capitalized Sales Commission Costs [Member] Capitalized Sales Commission Costs [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Expected impact of new accounting pronouncement New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Selected Quarterly Financial Information (Unaudited) Quarterly Financial Information [Text Block] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Options outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Options outstanding (in shares) Options available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Weighted average price per share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Options outstanding, beginning balance (per share) Exercised (per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options outstanding, ending balance (per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Options outstanding, Weighted average contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Options outstanding, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Closing stock price (in dollars per share) Sale of Stock, Price Per Share Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Designated as Hedging Instrument Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Net revenue Sales [Member] Operating expenses Operating Expense [Member] Interest and other expense, net Interest and other income (expense), net [member] Interest Income (Expense), Net Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Amount of (loss) gain recognized in accumulated other comprehensive loss on derivatives (effective portion) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into (loss) income (effective portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Amount and location of loss recognized in (loss) income on derivatives (ineffective portion and amount excluded from effectiveness testing) Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Amount and location of loss recognized in loss (income) on derivatives Derivative, Gain (Loss) on Derivative, Net Net prior service credit 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 Accumulated other comprehensive loss, before tax Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding 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 Public Float Entity Public Float Other comprehensive loss, net of reclassifications: Other Comprehensive Income (Loss), Net of Tax [Abstract] Net loss on derivative instruments (net of tax effect of $3.2, ($1.1), and $0.6) Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Change in net unrealized (loss) gain on available-for-sale securities (net of tax effect of $0.1, ($0.5), and $0.0) Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Change in defined benefit pension items (net of tax effect of ($0.7), ($0.9), and $0.9) Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Net change in cumulative foreign currency translation gain (loss) (net of tax effect of ($4.8), $0.2, and $0.5) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Aggregate Future Minimum Lease Payments Lessee, Operating Lease, Disclosure [Table Text Block] Rent Expense Related to Operating Leases Schedule of Rent Expense [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Intrinsic Value of Options Exercised and Weighted Average Grant Date Fair Value of Stock Options Granted Intrinsic Value of Options Exercised and Weighted Average Grant Date Fair Value of Stock Options Granted [Table Text Block] Intrinsic Value of Options Exercised and Weighted Average Grant Date Fair Value of Stock Options Granted [Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Restricted Share Activity Disclosure Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Employee and Director Stock Options Outstanding Schedule Of Stock Options Granted [Table Text Block] Schedule Of Stock Options Granted [Table Text Block] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] 2019 Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months 2020 Defined Benefit Plan, Expected Future Benefit Payment, Year Two 2021 Defined Benefit Plan, Expected Future Benefit Payment, Year Three 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Four 2023 Defined Benefit Plan, Expected Future Benefit Payment, Year Five 2024-2028 Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter Series of Individually Immaterial Business Acquisitions Cash consideration transferred for acqusitions and business combinations First $1M of officer compensation Effective Income Tax Rate Reconciliation, First $1M of Officer Compensation Effective Income Tax Rate Reconciliation, First $1M of Officer Compensation Income tax provision (benefit) at U.S. Federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income tax benefit, net of the U.S. Federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign income taxed at rates different from the U.S. statutory rate Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount U.S. valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Transition tax Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings, Amount Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings, Amount Increase in attributes due to ASU 2016-9 adoption Effective Income Tax Rate Reconciliation, Increase in Attributes Due to Adoption of Accounting Pronouncement Effective Income Tax Rate Reconciliation, Increase in Attributes Due to Adoption of Accounting Pronouncement Change in valuation allowance from ASU 2016-9 adoption Effective Income Tax Rate Reconciliation, Change in Valuation Allowance due to Adoption of Accounting Pronouncement Effective Income Tax Rate Reconciliation, Change in Valuation Allowance due to Adoption of Accounting Pronouncement Tax effect of non-deductible stock-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount Stock compensation windfall / shortfall Effective Income Tax Rate Reconciliation, Stock Compensation Windfall Shortfall Effective Income Tax Rate Reconciliation, Stock Compensation Windfall Shortfall Research and development tax credit benefit Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Closure of income tax audits and changes in uncertain tax positions Income Tax Reconciliation Uncertain Tax Positions The portion of the difference between total income tax expense (benefit) as reported in the Income Statement and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to closure of income tax audits and changes in uncertain tax positions. Tax effect of officer compensation in excess of $1.0 million Income Tax Reconciliation Officer Compensation Income Tax Reconciliation, Officer Compensation Non-deductible expenses Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount 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 Pre-tax intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Impairment of goodwill Goodwill, Impairment Loss Goodwill, beginning of period, gross Goodwill, Gross Less: accumulated impairment losses, beginning of the year Goodwill Accumulated Impairments Goodwill Accumulated Impairments Additions arising from acquisitions during the year Goodwill, Acquired During Period Effect of foreign currency translation, measurement period adjustments, and other (1) Goodwill, Translation and Purchase Accounting Adjustments Goodwill, end of period, net Service cost for benefits earned during the period Interest cost on projected benefit obligation Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Amortization of prior service credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Amortization of loss Defined Benefit Plan, Amortization of Gain (Loss) Settlement loss Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Curtailment gain Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Borrowing Arrangements Debt Disclosure [Text Block]