Investments, All Other Investments [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Commercial paper Commercial Paper [Member] Certificates of deposit Certificates of Deposit [Member] Corporate debt securities Corporate Debt Securities [Member] Other Deposits [Member] Custody cash deposit Demand Deposits [Member] Money market funds Money Market Funds [Member] Other Other Investments [Member] Mutual funds Mutual Fund [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [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] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Cash equivalents Cash and Cash Equivalents [Abstract] Amortized Cost Cash and Cash Equivalents, at Carrying Value Fair Value Cash and Cash Equivalents, Fair Value Disclosure Marketable securities: Marketable Securities [Abstract] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Gross Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Fair Value Debt Securities, Available-for-sale Short-term trading securities Debt Securities, Trading and Available-for-sale [Abstract] Amortized Cost Debt Securities, Trading, Amortized Cost Debt Securities, Trading, Amortized Cost Gross Unrealized Gains Trading Securities, Accumulated Gross Unrealized Gain, before Tax Trading Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Trading Securities, Accumulated Gross Unrealized Loss, before Tax Trading Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Debt Securities, Trading Convertible debt securities, Amortized Cost Convertible Debt Securities, Amortized Cost Convertible Debt Securities, Amortized Cost Convertible debt securities, Gross unrealized gains Convertible Debt Securities, Unrealized Gains Convertible Debt Securities, Unrealized Gains Convertible debt securities, Gross unrealized losses Convertible Debt Securities, Unrealized Losses Convertible Debt Securities, Unrealized Losses Convertible debt securities, Fair Value Convertible Debt Securities, Fair Value Disclosure Convertible Debt Securities, Fair Value Disclosure Derivative contract assets, Amortized Cost Derivative Asset, Fair Value, Gross Asset Derivative contract assets, Gross unrealized gains Derivative Assets, Accumulated Gross Unrealized Gain, before Tax Derivative Assets, Accumulated Gross Unrealized Gain, before Tax Derivative contract assets, Gross unrealized losses Derivative Assets, Accumulated Gross Unrealized Loss, before Tax Derivative Assets, Accumulated Gross Unrealized Loss, before Tax Derivative contract assets Derivative Asset Derivative contract liabilities, Amortized Cost Derivative Liability, Fair Value, Gross Liability Derivative contract liabilities, Gross unrealized gains Derivative Liabilities, Accumulated Gross Unrealized Gain, before Tax Derivative Liabilities, Accumulated Gross Unrealized Gain, before Tax Derivative contract liabilities, Gross unrealized losses Derivative Liabilities, Accumulated Gross Unrealized Loss, before Tax Derivative Liabilities, Accumulated Gross Unrealized Loss, before Tax Derivative contract liabilities Derivative Liability Amortized Cost Amortized Cost Securities Amortized Cost Securities Gross unrealized gains Investments, Accumulated Gross Unrealized Gain, before Tax Investments, Accumulated Gross Unrealized Gain, before Tax Gross unrealized losses Investments, Accumulated Gross Unrealized Loss, before Tax Investments, Accumulated Gross Unrealized Loss, before Tax Fair Value Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [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] Developed technologies Developed Technology Rights [Member] Customer relationships, trade names, patents, and user lists 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] 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 Property, Plant and Equipment [Abstract] Computer equipment, software, furniture, leasehold improvements and the related accumulated depreciation Property, Plant and Equipment [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Marketable securities Marketable Securities, Current Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Computer equipment, software, furniture and leasehold improvements, net Property, Plant and Equipment, Net Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Developed technologies, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Deferred income taxes, net Deferred Income Tax Assets, Net Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ DEFICIT Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued compensation Employee-related Liabilities, Current Accrued income taxes Accrued Income Taxes, Current Deferred revenue Contract with Customer, Liability, Current Operating lease liabilities Operating Lease, Liability, Current Current portion of long-term notes payable, net Notes Payable, Current Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Long-term deferred revenue Contract with Customer, Liability, Noncurrent Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Long-term income taxes payable Accrued Income Taxes, Noncurrent Long-term deferred income taxes Deferred Income Tax Liabilities, Net Long-term notes payable, net Notes Payable, Noncurrent Other liabilities Other Liabilities, Noncurrent Stockholders’ deficit: Stockholders' Equity Attributable to Parent [Abstract] Common stock and additional paid-in capital Common Stocks, Including Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total stockholders’ deficit Stockholders' Equity Attributable to Parent Total liabilities and stockholders' deficit Liabilities and Equity Revenue from Contract with Customer [Abstract] Revenue Recognition Revenue from Contract with Customer [Text Block] Number of revenue categories Number of Revenue Categories Number of Revenue Categories Contract with customer, liability, revenue recognized Contract with Customer, Liability, Revenue Recognized Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Remaining performance obligation percentage Revenue, Remaining Performance Obligation, Percentage Performance obligation, expected timing of satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Goodwill Goodwill Disclosure [Text Block] Share-based Payment Arrangement [Abstract] Schedule of stock options roll forward Schedule of Stock Options Roll Forward [Table Text Block] Intrinsic value of options exercised Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block] Schedule of summary of restricted stock activity Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Schedule of summary of the ESPP activity Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of stock-based compensation expense Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of assumptions to estimate the fair value of stock-based awards Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Segment Reporting [Abstract] Number of segment managers Number of Segment Managers Number of Segment Managers Number of operating segments Number of Operating Segments Accounting Changes and Error Corrections [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption Type of Adoption [Domain] Accounting Standards Update 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] ASSETS Prepaid expenses and other current assets Total current assets Total assets Other accrued liabilities Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Net revenue Sales [Member] Cost of revenue Cost of Sales [Member] Operating expenses Operating Expense [Member] Interest and other expense, net Interest and other income (expense), net [member] Interest Income (Expense), Net Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign currency contracts Foreign Exchange Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as hedging instrument Designated as Hedging Instrument [Member] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [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 accrued liabilities Other Accrued Liabilities [Member] Other Accrued Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative assets Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative liabilities Derivative Liability, Fair Value, Amount Not Offset Against Collateral Amount of (loss) gain recognized in accumulated other comprehensive loss on derivatives (effective portion) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Amount of (loss) gain recognized in accumulated other comprehensive loss on derivatives (effective portion) Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Amount of gain (loss) reclassified from accumulated other comprehensive loss into income (loss) (effective portion) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Amount of gain (loss) reclassified from accumulated other comprehensive loss into income (loss) (effective portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Amount of (loss) gain recognized in (loss) income on derivatives (ineffective portion and amount excluded from effectiveness testing) Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax Amount of (loss) gain 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 gain recognized on derivatives in net (loss) income Derivative, Gain (Loss) on Derivative, Net Segments Segment Reporting Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Earnings Per Share [Abstract] Schedule of computation of the numerators and denominators used in the basic and diluted net loss per share amounts Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Deferred Compensation Arrangements [Abstract] 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 and Liabilities Measured on a Recurring Basis [Domain] Fair Value, Assets and Liabilities Measured on a Recurring Basis [Domain] Fair Value, Assets and Liabilities Measured on a Recurring Basis [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] Deferred compensation liability Deferred Compensation Liability, Current and Noncurrent Deferred compensation liability, current Deferred Compensation Liability, Current Deferred compensation liability, non-current Deferred Compensation Liability, Classified, Noncurrent Costs to obtain a contract Capitalized Contract Cost, Net Amortization of costs to obtain a contract Capitalized Contract Cost, Amortization Impairment loss Capitalized Contract Cost, Impairment Loss Pre-tax intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Equity [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Common Stock Repurchase Program Common Stock Repurchase Program [member] Common Stock Repurchase Program Class of Stock [Line Items] Class of Stock [Line Items] Common stock repurchased and retired (in shares) Stock Repurchased During Period, Shares Repurchased shares of its common stock on the open market, average repurchase price per share (in 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 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] Share-based Compensation Award, Tranche One Share-based Payment Arrangement, Tranche One [Member] Share-based Compensation Award, Tranche Two Share-based Payment Arrangement, Tranche Two [Member] Share-based Compensation Award, Tranche Three Share-based Payment Arrangement, Tranche Three [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 1998 Employee Qualified Stock Purchase Plan Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Stock Options Share-based Payment Arrangement, Option [Member] Restricted Stock Units (RSUs) and Performance Shares 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] RSU based upon stock closing price Restricted Stock Units Based Upon Stock Closing Price [Member] Restricted Stock Units Based Upon Stock Closing Price [Member] Performance Stock Unit Performance Shares [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Compensation cost related to non-vested stock options Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Compensation cost related to non-vested stock options, weighted average period of recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Awards vested in period, fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Awards granted in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Allocated share-based compensation expense Share-based Payment Arrangement, Expense Market capitalization Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility, Market Capitalization Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility, Market Capitalization Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period PSU annual vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 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 Employee Stock Purchase Plan, Maximum Percentage of Compensation to Purchase Shares By Eligible Participants 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 Employee Stock Purchase Plan, Minimum Percentage of Common Stock Fair Value Defined to Purchase Shares By Eligible Participants Employee stock purchase plan, number of exercise periods Employee Stock Purchase Plan, Number of Exercise Periods Employee Stock Purchase Plan, Number of Exercise Periods Employee stock purchase plan, term of exercise period Employee Stock Purchase Plan, Term of Exercise Period Employee Stock Purchase Plan, Term of Exercise Period Employee stock purchase plan, term of offering period Employee Stock Purchase Plan, Term of Offering Period Employee Stock Purchase Plan, Term of Offering Period Expected dividend yield (in percentage) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Securities in a continuous unrealized loss position for more than 12 months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gain (loss) from sale or redemption of available for sale securities Debt Securities, Realized Gain (Loss) Proceeds from sale and maturity of marketable securities Proceeds from Sale and Maturity of Marketable Securities Direct investments in privately held companies Equity Securities without Readily Determinable Fair Value, Amount Positive adjustment on certain of its privately held investments Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount Cumulative adjustment on certain of its privately held investments Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount Other than temporary impairment losses, investments Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount Cumulative impairments and negative adjustments on certain of its privately held investments Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount Computer Equipment, Software, Furniture and Leasehold Improvements, Net Property, Plant and Equipment Disclosure [Text Block] Cover page. Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One 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 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 Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Schedule of finite-lived intangible assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Goodwill [Roll Forward] Goodwill [Roll Forward] Goodwill gross, beginning of the period Goodwill, Gross Less: accumulated impairment losses, beginning of the period Goodwill, Impaired, Accumulated Impairment Loss Goodwill net, beginning of the period Effect of foreign currency translation, measurement period adjustments, and other Goodwill, Translation and Purchase Accounting Adjustments Goodwill net, end of the period Goodwill impairment loss Goodwill, Impairment Loss Leases [Abstract] Lease Cost and Cash Flow Information Lease, Cost [Table Text Block] Future Minimum Lease Payments Lessee, Operating Lease, Liability, Maturity [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative, notional amount Derivative, Notional Amount Derivative instrument, term Derivative, Term of Contract Net gain expected to be recognized in next 24 months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 24 Months, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 24 Months, Net Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Subscription Subscription and Circulation [Member] Maintenance Maintenance [Member] Subscription and Maintenance Subscription and Maintenance [Member] Subscription and Maintenance [Member] Subscription Revenue Subscription Revenue [Member] Subscription Revenue [Member] Maintenance Revenue Maintenance Revenue [Member] Maintenance Revenue [Member] Cost of subscription and maintenance revenue Cost of Subscription and Maintenance Revenue [Member] Cost of Subscription and Maintenance Revenue [Member] Marketing and sales Selling and Marketing Expense [Member] Research and development Research and Development Expense [Member] General and administrative General and Administrative Expense [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Total net revenue Revenue from Contract with Customer, Excluding Assessed Tax Cost of revenue Cost of Goods and Services Sold Marketing and sales Selling and Marketing Expense Research and development Research and Development Expense General and administrative General and Administrative Expense Amount of gain (loss) reclassified from accumulated other comprehensive income into income Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value by Asset Class [Axis] Asset Class [Axis] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain] Asset Class [Domain] Derivative Contracts Derivative [Member] Convertible Debt Securities Convertible Debt Securities [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balances, January 31, 2019 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Impairments Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Impairments Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Impairments Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (Loss) gain included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Loss included in OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Balances, October 31, 2019 Recently Issued Accounting Standards Significant Accounting Policies [Text Block] Range of expected volatilities (in percentage) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Range of expected lives (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected dividends (in percentage) Range of risk-free interest rates (in percentage) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Leases Lessee, Operating Leases [Text Block] Unvested restricted stock units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested restricted stock units, beginning balance (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (shares) Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Canceled/Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Performance adjustment (shares) Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Adjustments In Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Adjustment In Period Unvested restricted stock units, ending balance (shares) Weighted average grant date fair value per share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Weighted Average Grant Date Fair Value [Roll Forward] Unvested restricted stock units, beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in usd 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 (in usd 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 Canceled/Forfeited (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Performance adjustment (in usd per share) Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Adjustments, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Adjustment, Weighted Average Grant Date Fair Value Unvested restricted stock units, ending balance (in usd per share) Performance shares units payout (in percentage) Performance Shares, Units, Payout Percentage Performance Shares, Units, Payout Percentage Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Options outstanding beginning (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 Canceled/Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Options outstanding ending (in shares) Options vested and exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Weighted average exercise price per share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Options outstanding beginning (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled/Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Options outstanding ending (in dollars per share) Vested and exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Options outstanding, weighted average remaining contractual term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Options outstanding, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Options vested and exercisable, weighted average remaining contractual term (in years) Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Remaining Contractual Term Options vested and exercisable, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Stock price (in usd per share) Share Price Net revenue from contracts with customers by geographic location, product family, and sales channel Disaggregation of Revenue [Table Text Block] Employee Stock Employee Stock [Member] Issued shares (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Average price of issued shares (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award Shares Issued Average Price Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued, Average Price Weighed average grant date fair value of awards granted under the ESPP (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Numerator: Numerator [Abstract] Numerator [Abstract] Net income (loss) Net Income (Loss) Attributable to Parent Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Denominator for basic net loss per share—weighted average shares (shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities (shares) Weighted Average Number Diluted Shares Outstanding Adjustment Denominator for dilutive net loss per share (shares) Weighted Average Number of Shares Outstanding, Diluted Basic net income (loss) per share (in usd per share) Earnings Per Share, Basic Diluted net income (loss) per share (in usd per share) Earnings Per Share, Diluted Dilutive securities excluded from earnings per share sue to net loss scenario Dilutive Securities Excluded from Computation of Earnings Per Share Due to Net Loss Scenario Dilutive Securities Excluded from Computation of Earnings Per Share Due to Net Loss Scenario Potentially dilutive shares excluded from the computation of diluted net income per share (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Debt Disclosure [Abstract] Borrowing Arrangements Debt Disclosure [Text Block] Financial Instruments Financial Instruments Disclosure [Text Block] 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] Computer hardware Computer Equipment [Member] Computer software Software Development [Member] Leasehold improvements, land and buildings Land, Buildings and Improvements [Member] Furniture and Equipment Furniture and Equipment [Member] Furniture and Equipment [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Computer software, hardware, leasehold improvements, furniture and 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Net income (loss) Weighted average shares used in computing basic net income (loss) per share (in shares) Weighted average shares used in computing diluted net income (loss) per share (in shares) Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Remaining lease term (in years) Lessee, Operating Lease, Remaining Lease Term Lessee, Operating Lease, Remaining Lease Term Lease renewal term (in years) Lessee, Operating Lease, Renewal Term Optional termination period (in years) Lessee, Operating Lease, Termination Period Lessee, Operating Lease, Termination Period Weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate (in percentage) Operating Lease, Weighted Average Discount Rate, Percent Operating lease minimum payments, executed leases that have not commenced Lessee, Operating Lease, Lease Not yet Commenced, Undiscounted Amount Lessee, Operating Lease, Lease Not yet Commenced, Undiscounted Amount Rent expense Operating Leases, Rent Expense Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] 2020 (remainder) Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Present value of operating lease liabilities Operating Lease, Liability