Acquistions [Abstract] Acquistions [Abstract] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Financial Instruments [Abstract] Financial Instruments [Abstract] 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] Fair Value by Asset Class [Domain] Derivative [Member] Derivative [Member] Convertible Debt Securities [Member] Convertible Debt Securities [Member] Auction Rate Securities [Member] Auction Rate 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] Balance at January 31,2012 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Transfer into (out of) Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements Net unrealizrd gains (losses) included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Net unrealized gains (losses) included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Balance at April 30,2012 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 Acquistions [Member] Series of Individually Immaterial Business Acquisitions [Member] Vela Systems [Member] Vela Systems [Member] Vela Systems [Member] 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 Technology Rights [Member] Developed Technology Rights [Member] Customer Relationships [Member] Customer Relationships [Member] Trade Names [Member] Trade Names [Member] Customer Lists [Member] Customer Lists [Member] Patents [Member] Patents [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Business Acquisition, Purchase Price Allocation, Goodwill Amount Business Acquisition, Purchase Price Allocation, Goodwill Amount Business Acquisition, Purchase Price Allocation, Current Liabilities, Deferred Revenue Business Acquisition, Purchase Price Allocation, Current Liabilities, Deferred Revenue Business Acquisition, Purchase Price Allocation, Deferred Taxes Asset (Liability), Net, Noncurrent Business Acquisition, Purchase Price Allocation, Deferred Taxes Asset (Liability), Net, Noncurrent Business Acquisition, Purchase Price Allocation, Net Tangible Assets Business Acquisition, Purchase Price Allocation, Net Tangible Assets Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net 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 Member Rabbi Trust Member Rabbi Trust Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Marketable Securities, Current [Member] Marketable Securities, Current [Member] Marketable Securities, Current [Member] 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, Fair Value Disclosure Trading Securities, Fair Value Disclosure Deferred compensation liability current Deferred Compensation Liability, Current Deferred compensation liability Deferred Compensation Liability, Current and Noncurrent Deferred compensation liability non-current Deferred Compensation Liability, Classified, Noncurrent Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Recently Issued Accounting Standards [Abstract] Recently Issued Accounting Standards [Abstract] Description of New Accounting Pronouncements Not yet Adopted [Text Block] DescriptionOfNewAccountingPronouncementsRecentlyAdoptedAndNotYetAdoptedTextBlock The entire disclosure for a new accounting pronouncements may include a new accounting pronouncement recently adopted and/or a new accounting pronouncement that has been issued but not yet adopted. Earnings Per Share [Abstract] Net income Net Income (Loss) Attributable to Parent Denominator for basic net income per share-weighted average shares Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities Weighted Average Number Diluted Shares Outstanding Adjustment Denominator for dilutive net income per share Weighted Average Number of Shares Outstanding, Diluted Basic net income per share (in usd per share) Earnings Per Share, Basic Diluted net income per share (in usd per share) Earnings Per Share, Diluted Potentially dilutive shares excluded from the computation of diluted net income per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Finite-Lived Intangible Assets, Net [Abstract] Intangible Assets Disclosure [Text Block] Intangible Assets Disclosure [Text Block] Statement of Cash Flows [Abstract] Operating activities [Abstract]: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities [Abstract]: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Stock-based compensation expense Share-based Compensation Excess tax benefits from stock-based compensation Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities Restructuring benefits Restructuring Costs Other Operating Activities, Cash Flow Statement Other Operating Activities, Cash Flow Statement Changes in operating assets and liabilities, net of business combinations Increase (Decrease) in Operating Capital Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities [Abstract]: Net 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 Capital expenditures Payments to Acquire Property, Plant, and Equipment Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Other investing activities Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities [Abstract]: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of common stock, net of issuance costs Proceeds from Issuance of Common Stock Repurchases of common stock Payments for Repurchase of Common Stock Excess tax benefits from stock-based compensation Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities Net cash used in 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 increase 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 Carrying Value Cash and cash equivalents at end of period Disclosure Text Block [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Stock Based Compensation Expense [Abstract] Stock Based Compensation Expense [Abstract] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Performance Shares [Member] Performance Shares [Member] Component of Other Operating Cost and Expense, General [Axis] Component of Other Operating Cost and Expense [Axis] Component of Other Operating Cost and Expense, Name [Domain] Component of Other Operating Cost and Expense, Name [Domain] Cost of Sales [Member] Cost of Sales [Member] Selling and Marketing Expense [Member] Selling and Marketing Expense [Member] Other Research and Development Expense [Member] Other Research and Development Expense [Member] General and Administrative Expense [Member] General and Administrative Expense [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense Share-based Compensation Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Allocated Share-based Compensation Expense, Net of Tax Allocated Share-based Compensation Expense, Net of Tax Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment [Table Text Block] Risks and Uncertainties [Abstract] Concentration of Credit Risk [Text Block] Concentration Risk Disclosure [Text Block] Business Combination Disclosure [Text Block] Business Combination Disclosure [Text Block] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Comprehensive Income (Loss) Note [Text Block] Comprehensive Income (Loss) Note [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill [Text Block] Goodwill 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] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Employee Stock Plan 2012 [Member] Employee Stock Plan 2012 [Member] Employee Stock Plan 2012 [Member] Directors stock plan 2012 [Member] Directors stock plan 2012 [Member] Directors stock plan 2012 [Member] Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Employee Qualified Stock Purchase Plan 1998 ESP Plan [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum [Member] 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] Period for Recognition, Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized Period for Recognition, Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized Period for Recognition, Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized Share based compensation arragements by share based payment awards, number of active plans (presented as an integer) Share based compensation arragements by share based payment awards, number of active plans Share based compensation arragements by share based payment awards, number of active plans Share based compensation arrangement by share based payment award expired or terminated plans (presented as an integer) Share based compensation arrangement by share based payment award expired or terminated plans Share based compensation arrangement by share based payment award expired or terminated plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Share-based Compensation, Forfeited Stock Issued During Period, Shares, Share-based Compensation, Forfeited Share-Based Compensation Shares Granted to Share Issued Share-Based Compensation Shares Granted to Share Issued Share-Based Compensation Shares Granted to Share Issued Number of options or stock units granted in a plan to-date Number of options or stock units granted in a plan to-date Number of options or stock units granted in a plan to-date Share Based Compensation Arrangement By Share Based Payment Award Maximum Vesting Period For Stock Options (in years) Share Based Compensation Arrangement By Share Based Payment Award Maximum Vesting Period For Stock Options Share Based Compensation Arrangement By Share Based Payment Award Maximum Vesting Period For Stock Options Share based compensation arrangement by 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 Employee Stock Plan Shares Remaining Available For Issuance Employee Stock Plan Shares Remaining Available For Issuance Shares remaining available for issuance for the plan. Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in usd) Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Share Based Compensation Non Vested Options Outstanding Weighted Average Remaining Contractual Term (in years) Share Based Compensation Non Vested Options Outstanding Weighted Average Remaining Contractual Term Share based Compensation, Non Vested Options, Outstanding, Weighted Average Remaining Contractual Term Sale of Stock, Price Per Share (in usd per share) Sale of Stock, Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Allocated Share-based Compensation Expense (in usd) Employee Service Share Based Compensation Unrecognized Compensation Costs On Nonvested Restricted Shares (in usd) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Employee Stock Purchase Plan Maximum Percentage Of Compensation To Purchase Shares By Eligible Participants (presented as a percent) 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 (presented as a percent) 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 Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period Percentage Calculation (presented as a percent) Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period Percentage Calculation Share Based Compensation Arrangement by Share Based Payment Award, Options, Other Increases (Decreases) in Period, Percentage Calculation Stock Issued During Period, Shares, Employee Stock Purchase Plans Stock Issued During Period, Shares, Employee Stock Purchase Plans Share Based Compensation Arrangement By Share Based Payment Award Shares Issued Average Price (in usd 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 Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Income Tax Disclosure [Abstract] Deferred Tax Assets, Net (in usd) Deferred Tax Assets, Net Unrecognized Tax Benefits that Would Impact Effective Tax Rate (in usd) Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits (in usd) Unrecognized Tax Benefits Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Effective tax rate excluding the impact of discrete tax items Effective tax rate excluding the impact of discrete tax items Effective Income Tax Rate Effective Income Tax Rate, Continuing Operations Effective Income Tax Rate, Continuing Operations Discrete Tax Items Discrete Tax Items The sum of discrete tax items that reconcile the federal statutory tax provision (benefit) to the effective tax provision (benefit) excluding the impact of discrete tax items. Effective Tax Rate - Increase/Decrease in the effective tax rate Effective Tax Rate - Increase/Decrease in the effective tax rate Effective Tax Rate - Increase/Decrease in the effective tax rate Statement of Other Comprehensive Income [Abstract] Other comprehensive income, net of tax and reclassification [Abstract] Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract] Net loss on derivative instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Change in net unrealized gain on available-for-sale securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Change in unfunded portion of pension plans Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent Net change in cumulative foreign currency translation gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Total other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Business Segments [Axis] Segment [Domain] Segment [Domain] Platform Solutions and Emerging Business [Member] Platform Solutions and Emerging Business [Member] Platform Solutions and Emerging Business Architecture, Engineering and Construction [Member] Architecture Engineering And Construction [Member] Architecture, Engineering and Construction Manufacturing [Member] Manufacturing [Member] Manufacturing Media and Entertainment [Member] Media And Entertainment [member] Media and Entertainment Unallocated Amount to Segment [Member] Unallocated Amount to Segment [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Net Income (Loss) Attributable to Parent Revenue, Net Revenue, Net Gross Profit Gross Profit Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Region Reporting Information, by Secondary Region [Axis] Region Reporting Information, by Secondary Region [Axis] Region Reporting Information, by Secondary Region [Axis] Region Reporting Information, by Secondary Region [Domain] Region Reporting Information, by Secondary Region [Domain] Region Reporting Information, by Secondary Region [Domain] UNITED STATES [Member] UNITED STATES Other Americas [Member] Other Americas [Member] Other Americas JAPAN [Member] JAPAN Other Asia Pacific [Member] Other Asia Pacific [Member] Other Asia Pacific Region Reporting Information, by Region [Axis] Region Reporting Information, by Region [Axis] Disclosure of profit or loss, total assets for each reportable region, and a description of the types of products and services for each reportable region. Reporting Region [Domain] Reporting Region [Domain] A regional component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Total Americas [Member] Total Americas [Member] Total Americas Europe Middle East And Africa [Member] Europe Middle East And Africa [Member] Europe, Middle East and Africa Total Asia [Member] Asia [Member] Asia Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Due 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 year 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 Securities, Debt Maturities, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Due 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 year 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 Maturities, without Single Maturity Date, Fair Value Financial Instruments and Hedging Activities [Text Block] Financial Instruments Disclosure [Text Block] Line of Credit Facility [Abstract] Borrowing Arrangements [Text Block] Debt 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] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Foreign Exchange Contract [Member] Foreign Exchange Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivatives, Fair Value, by Balance Sheet Location [Axis] Prepaid expenses and other current assets [member] Other Current Assets [Member] Other Assets [Member] Other Assets [Member] Other Accrued Liabilities [Member] Other Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Gross Asset Derivative Liability, Fair Value, Gross Liability Derivative Liability, Fair Value, Gross Liability Schedule of Goodwill [Table] Schedule of Goodwill [Table] Series of Individually Immaterial Business Acquisitions [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill, Acquired During Period Goodwill, Acquired During Period Goodwill before accumulated impairment losses beginning balance Goodwill before accumulated impairments Goodwill before accumulated impairments Accumulated impairment losses beginning balance Goodwill, Impaired, Accumulated Impairment Loss Goodwill Goodwill Effect of foreign currency translation, purchase accounting and other Goodwill, Translation and Purchase Accounting Adjustments Goodwill before accumulated impairment losses ending balance Accumulated impairment losses ending balance Number of reporting units (presented as an integer) Number of Reportable Business Segments Number of Reportable Business Segments Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] One-time Termination Benefits [Member] One-time Termination Benefits [Member] Facility Closing [Member] Facility Closing [Member] Minimum [Member] Minimum [Member] Socialcam [Member] Socialcam [Member] Socialcam [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Line Items] Subsequent Event [Line Items] Restructuring and Related Cost, Expected Cost Restructuring and Related Cost, Expected Cost Business Acquisition, Cost of Acquired Entity, Purchase Price Business Acquisition, Cost of Acquired Entity, Purchase Price Statement of Financial Position [Abstract] ASSETS [Abstract] Assets [Abstract] Current assets [Abstract]: Assets, Current [Abstract] Cash and cash equivalents Marketable securities Marketable Securities, Current Accounts receivable, net Accounts Receivable, Net, Current Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Marketable securities Marketable Securities, Noncurrent Computer equipment, software, furniture and leasehold improvements, net Property, Plant and Equipment, Net Purchased technologies, net Intangible Assets, Net (Excluding Goodwill) Goodwill Deferred income taxes, net Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Other assets Other Assets, Noncurrent Assets, Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract] Liabilities and Equity [Abstract] Current liabilities [Abstract]: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued compensation Employee-related Liabilities, Current Accrued income taxes Accrued Income Taxes, Current Deferred revenue Deferred Revenue, Current Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Deferred revenue Deferred Revenue, Noncurrent Long term income taxes payable Accrued Income Taxes, Noncurrent Other liabilities Other Liabilities, Noncurrent Commitments and contingencies Commitments and Contingencies Stockholders' equity [Abstract]: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock Preferred Stock, Value, Issued Common stock and additional paid-in capital Common Stock, Including Additional Paid in Capital Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total stockholders' equity Stockholders' Equity Attributable to Parent Liabilities and Equity, Total Liabilities and Equity Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Business Combination, Fair Value of original equity investment Business Combination, Fair Value of original equity investment Fair Value of original equity investment Acquired Finite-lived Intangible Asset, Amount Acquired Finite-lived Intangible Asset, Amount Other Expenses Other Expenses Business Acquisition, Preexisting Relationship, Gain (Loss) Recognized Business Acquisition, Preexisting Relationship, Gain (Loss) Recognized Schedule of Goodwill [Table Text Block] Schedule of Goodwill [Table Text Block] Subsequent Events [Text Block] Subsequent Events [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Table] Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Table] Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Table] Stock Options Plan [Member] Stock Options Plan [Member] Employee Stock Option [Member] Employee Stock Option [Member] Employee Stock Option [Member] Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected Term, Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions Expected Term, Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions Expected Term, Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions Expected Forfeitures Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions Expected Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Forfeitures Class of Stock Disclosures [Abstract] Common Stock Repurchase Program [Text Block] Treasury Stock [Text Block] Computer software, at cost Capitalized Computer Software, Gross Computer hardware, at cost Computer Hardware Gross Computer Hardware, 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 Property, Plant and Equipment, Gross, Total 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 Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Income Taxes [Text Block] Income Tax Disclosure [Text Block] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Other Long-term Investments [Member] Other Long-term Investments [Member] Short-term Investments [Member] Short-term Investments [Member] Other Assets [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Commercial Paper [Member] Commercial Paper [Member] Money Market Funds [Member] Money Market Funds [Member] US Government Corporations and Agencies Securities [Member] US Government Corporations and Agencies Securities [Member] Bank Time Deposits [Member] Bank Time Deposits [Member] Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Commercial paper and corporate securities [member] Commercial paper and corporate securities [member] Commercial Paper and Corporate Securities Commercial paper and corporate securities [member] Commercial Paper, Not Included with Cash and Cash Equivalents [Member] US Treasury Securities [Member] US Treasury Securities [Member] US Government Agencies Debt Securities [Member] US Government Agencies Debt Securities [Member] US States and Political Subdivisions Debt Securities [Member] US States and Political Subdivisions Debt Securities [Member] Sovereign Debt [Member] Sovereign Debt [Member] Other [Member] Other securities [Member] Other securities [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Taxable Auction Rate Securities [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Cash and Cash Equivalents, at Carrying Value Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis Cash and Cash Equivalents, Fair Value Disclosure Cash and Cash Equivalents, Fair Value Disclosure Available-for-sale Securities, Fair Value Disclosure Available-for-sale Securities, Fair Value Disclosure Trading Securities Trading Securities Trading Securities, Unrealized Holding Gain Trading Securities, Unrealized Holding Gain Trading Securities, Unrealized Holding Loss Trading Securities, Unrealized Holding Loss Derivative, Fair Value, Net Derivative, Fair Value, Net Amortized Cost Securities Amortized Cost Securities Amortized Cost Securities Unrealized Gain on Securities Unrealized Gain on Securities Unrealized Loss on Securities Unrealized Loss on Securities Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis Fair Value, Transfers Between Level 1 and Level 2, Description and Policy 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