Accelerated Share Repurchases [Line Items] Accelerated Share Repurchases [Line Items] Accelerated Share Repurchases [Table] Accelerated Share Repurchases [Table] Accelerated Share Repurchases [Text Block] Share Repurchase Program Accounts Payable And Accrued Liabilities Current Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities [Member] Accounts Payable And Accrued Liabilities [Member] Accounts Payable and Accrued Liabilities Accounts Receivable Net Current Accounts receivable, net of allowances for doubtful accounts of $1,663 and $1,877, respectively Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, accumulated depreciation and amortization Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive loss Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss) Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items] Acquired Finite Lived Intangible Assets Weighted Average Useful Life Estimated Life (Years) Acquired finite lived intangible asset weighted average useful life, indefinite. Acquired Finite Lived Intangible Asset Weighted Average Useful Life Indefinite Estimated Life Additional Paid In Capital Additional paid-in capital Additional Paid In Capital [Member] Additional Paid-in Capital Adjustments Related To Tax Withholding For Share Based Compensation Minimum tax withholdings paid by the Company on behalf of employees related to net settlement of employee share-based awards Adjustments to additional paid in capital employee share based compensation awards from acquisitions. Adjustments To Additional Paid In Capital Employee Share Based Compensation Awards From Acquisitions Assumed employee share-based awards from acquisitions Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Share-based compensation expense Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation Tax benefits related to share-based awards Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Allocated Share Based Compensation Expense Total share-based compensation expense Allowance For Doubtful Accounts Receivable Current Accounts receivable, allowances for doubtful accounts Amendment Flag Amendment Flag Americas Americas [Member] Americas Amortization Of Intangible Assets Total amortization expense Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Number of shares considered anti-dilutive for calculating diluted EPS Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Asia Pacific Asia Pacific [Member] Asia Pacific Assets Total assets Total assets Assets [Abstract] ASSETS Assets And Liabilities Measured Fair Value Disclosure Assets And Liabilities Measured Fair Value Disclosure Total Assets Current Total current assets Assets Current [Abstract] Current assets: Available For Sale Securities Amortized Cost Amortized Cost Availableforsale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses 2 Accumulated unrealized losses related to investments Available For Sale Securities Fair Value Disclosure Aggregate Fair Value Availableforsale Securities Gross Unrealized Gain Gross Unrealized Gains Available For Sale Securities Gross Unrealized Losses 1 Gross Unrealized Losses Award Type [Axis] Award Type [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquisition Related Costs [Line Items] Business Acquisition Acquisition Related Costs [Line Items] Business Acquisition, Acquisition Related Costs [Line Items] Business Acquisition, Acquisition Related Costs [Table] Business Acquisition Acquisition Related Costs [Table] Business Acquisition, Acquisition Related Costs [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition Cost Of Acquired Entity Cash Paid Cash consideration Cash consideration paid to and/or on behalf of holders of Gluster stock and vested options Business Acquisition Cost Of Acquired Entity Purchase Price Total consideration for acquisition Total Business Acquisition Cost Of Acquired Entity Transaction Costs Transactions costs Business Acquisition Fair Value Of Unvested Employee Share-Based Awards Assumed Business Acquisition Fair Value Of Unvested Employee Share Based Awards Assumed Fair value of unvested employee share-based awards assumed and attributed to pre-combination services Business Acquisition [Line Items] Business Acquisition [Line Items] Business Acquisition Pro Forma Earnings Per Share Basic Basic net income per common share Business Acquisition Pro Forma Earnings Per Share Diluted Diluted net income per common share Business Acquisition, Pro Forma Information [Line Items] Business Acquisition Pro Forma Information [Line Items] Business Acquisition, Pro Forma Information [Line Items] Business Acquisition, Pro Forma Information [Table] Business Acquisition Pro Forma Information [Table] Business Acquisition, Pro Forma Information [Table] Business Acquisition Pro Forma Information [Text Block] Pro Forma Consolidated Financial Information Business Acquisition Purchase Price Allocation Amortizable Intangible Assets Total identifiable intangible assets Estimated identifiable intangible assets Identifiable intangible assets Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents Cash Business Acquisition Purchase Price Allocation Current Assets Receivables Accounts receivable Business Acquisition Purchase Price Allocation Current Liabilities Accrued Liabilities Accrued liabilities Business Acquisition Purchase Price Allocation Current Liabilities Deferred Revenue Deferred revenue Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net Deferred tax assets, net Business Acquisition Purchase Price Allocation Goodwill Amount Goodwill Business Acquisition Purchase Price Allocation Other Noncurrent Assets Other assets Business Acquisition Purchase Price Allocation Property Plant And Equipment Fixed assets Business Acquisitions Pro Forma Net Income Loss Net income Business Acquisitions Pro Forma Revenue Revenue Business Combination compensation expense recognized of assumed nonvested share based awards Business Combination Compensation Expense Recognized Of Assumed Nonvested Share Based Awards Business combination compensation expense recognized of assumed nonvested share based awards Business Combination Consideration Transferred Other Pre-acquisition employee services nonvested share-based awards Business Combination Disclosure [Text Block] Business Combinations Business Combination Total Nonvested Share Based Awards Assumed Business Combination Total Nonvested Share Based Awards Assumed Business combination total nonvested share based awards assumed Business Exit Costs Facility exit costs (NOTE 12) Loss on sublease Capital Lease Obligations Capital lease obligation Cash Cash Cash And Cash Equivalents At Carrying Value Cash and cash equivalents at end of the period Cash and cash equivalents at beginning of the period Cash and cash equivalents Cash And Cash Equivalents Fair Value Disclosure Cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Net increase (decrease) in cash and cash equivalents Cash Cash Equivalents And Short Term Investments Cash, cash equivalents and available-for-sale investments Cash Equivalents At Carrying Value Cash Equivalent Marketable Securities Commercial Paper [Member] Commercial Paper Commitments And Contingencies Commitments and contingencies (NOTE 12 and NOTE 13) Commitments And Contingencies Disclosure [Text Block] Commitments and Contingencies Commitments and Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and Contingencies [Line Items] Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] Common Stock [Member] Common Stock Common Stock Par Or Stated Value Per Share Common stock, per share par value Common stock performance period . Common Stock Performance Period Common stock performance period (in years) Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common Stock Shares Outstanding Common stock, shares outstanding Common Stock Value Common stock, $0.0001 per share par value, 300,000,000 shares authorized, 228,981,417 and 226,553,435 shares issued, and 193,479,006 and 192,654,636 shares outstanding at November 30, 2012 and February 29, 2012, respectively 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] Comprehensive Income Net Of Tax Comprehensive income Consolidation Policy [Text Block] Principles of Consolidation Corporate Debt Securities [Member] Corporate Securities Corporate [Member] Corporate Cost Of Goods Sold Subscription Cost of subscriptions Cost Of Revenue Total cost of subscription and training and services revenue Cost Of Revenue [Abstract] Cost of subscription and training and services revenue: Cost Of Sales [Member] Cost of Revenue Cost Of Services Cost of training and services Current Fiscal Year End Date Current Fiscal Year End Date Current Income Tax Expense Benefit Provision for income taxes on current year ordinary income Customer And Reseller Relationships Customer And Reseller Relationships [Member] Customer and Reseller Relationships Customer Relationships [Member] Customer Relationships Deferred Income Tax Expense Benefit Deferred income taxes Deferred Revenue Current Deferred revenue Deferred Revenue Noncurrent Long-term deferred revenue Deferred Tax Assets Gross Total deferred tax assets Deferred Tax Assets Net Current Deferred tax assets, net Deferred Tax Assets Valuation Allowance Valuation allowance for deferred tax assets Depreciation Incremental depreciation expense Depreciation And Amortization Depreciation and amortization Derivative Assets Derivative Assets Derivative Contract Type [Domain] Derivative Contract Type [Domain] Derivative Financial Instruments Liabilities Fair Value Disclosure Derivative Liability Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Instruments And Hedging Activities Disclosure [Text Block] Derivative Instruments Derivative Instruments Gain Loss Recognized In Income Net Amount of Gain (Loss) Recognized in Income On Derivative Derivative [Line Items] Derivative [Line Items] Derivative [Table] Derivative [Table] Developed Technology Rights [Member] Purchased Technologies Disclosure - Amortization Expense Associated With Identifiable Intangible Assets [Abstract] Disclosure Amortization Expense Associated With Identifiable Intangible Assets [Abstract] Disclosure - Amortization Expense Associated With Identifiable Intangible Assets [Abstract] Disclosure Business Combinations Additional Information [Abstract] Disclosure Business Combinations Additional Information [Abstract] Disclosure Business Combinations Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure Derivative Instruments Additional Information [Abstract] Disclosure Derivative Instruments Additional Information [Abstract] Disclosure Derivative Instruments Additional Information [Abstract] Disclosure - Effects of Derivative Instruments [Abstract] Disclosure Effects Of Derivative Instruments [Abstract] Disclosure - Effects of Derivative Instruments [Abstract] Disclosure - Fair Value of Assets and Liabilities Acquired [Abstract] Disclosure Fair Value Of Assets And Liabilities Acquired [Abstract] Disclosure - Fair Value of Assets and Liabilities Acquired [Abstract] Disclosure - Identifiable Intangible Assets - Additional Information [Abstract] Disclosure Identifiable Intangible Assets Additional Information [Abstract] Disclosure - Identifiable Intangible Assets - Additional Information [Abstract] Disclosure Income Taxes Additional Information [Abstract] Disclosure Income Taxes Additional Information [Abstract] Disclosure Income Taxes Additional Information [Abstract] Disclosure - Investments Measured at Fair Value [Abstract] Disclosure Investments Measured At Fair Value [Abstract] Disclosure - Investments Measured at Fair Value [Abstract] Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Share-based Awards Disclosure - Pro Forma Consolidated Financial Information [Abstract] Disclosure Pro Forma Consolidated Financial Information [Abstract] Disclosure - Pro Forma Consolidated Financial Information [Abstract] Disclosure - Reconciliation of Numerators and Denominators of Earnings Per Share Calculation [Abstract] Disclosure Reconciliation Of Numerators And Denominators Of Earnings Per Share Calculation [Abstract] Disclosure - Reconciliation of Numerators and Denominators of Earnings Per Share Calculation [Abstract] Disclosure Segment Reporting Additional Information [Abstract] Disclosure Segment Reporting Additional Information [Abstract] Disclosure Segment Reporting Additional Information [Abstract] Disclosure - Share-based Awards - Additional Information [Abstract] Disclosure Sharebased Awards Additional Information [Abstract] Disclosure - Share-based Awards - Additional Information [Abstract] Disclosure - Share Repurchase Program - Additional Information [Abstract] Disclosure Share Repurchase Program Additional Information [Abstract] Disclosure - Share Repurchase Program - Additional Information [Abstract] Disclosure - Shares Considered Anti-Dilutive for Calculating Diluted EPS [Abstract] Disclosure Shares Considered Anti Dilutive For Calculating Diluted E P S [Abstract] Disclosure - Shares Considered Anti-Dilutive for Calculating Diluted EPS [Abstract] Disclosure Subsequent Events Additional Information [Abstract] Disclosure Subsequent Events Additional Information [Abstract] Disclosure Subsequent Events Additional Information [Abstract] Disclosure - Summary of Allocation of Identifiable Intangible Asset Resulting from Acquisition [Abstract] Disclosure Summary Of Allocation Of Identifiable Intangible Asset Resulting From Acquisition [Abstract] Disclosure - Summary of Allocation of Identifiable Intangible Asset Resulting from Acquisition [Abstract] Disclosure - Summary of Changes in Goodwill [Abstract] Disclosure Summary Of Changes In Goodwill [Abstract] Disclosure - Summary of Changes in Goodwill [Abstract] Disclosure - Summary of Changes in Stockholders' Equity, Including Other Comprehensive Income [Abstract] Disclosure Summary Of Changes In Stockholders Equity Including Other Comprehensive Income [Abstract] Disclosure - Summary of Changes in Stockholders' Equity, Including Other Comprehensive Income [Abstract] Disclosure - Summary of Consideration Transferred in Connection With Acquisition [Abstract] Disclosure Summary Of Consideration Transferred In Connection With Acquisition [Abstract] Disclosure - Summary of Consideration Transferred in Connection With Acquisition [Abstract] Disclosure Summary Of Identifiable Intangible Assets [Abstract] Disclosure Summary Of Identifiable Intangible Assets [Abstract] Disclosure Summary Of Identifiable Intangible Assets [Abstract] Disclosure - Summary of Revenue From Unaffiliated Customers [Abstract] Disclosure Summary Of Revenue From Unaffiliated Customers [Abstract] Disclosure - Summary of Revenue From Unaffiliated Customers [Abstract] Disclosure - Summary of Revenue, Income (Loss) from Operations and Total Assets by Geographic Segment [Abstract] Disclosure Summary Of Revenue Income Loss From Operations And Total Assets By Geographic Segment [Abstract] Disclosure - Summary of Revenue, Income (Loss) from Operations and Total Assets by Geographic Segment [Abstract] Disclosure - Summary of Share-Based Awards Granted During Period [Abstract] Disclosure Summary Of Share Based Awards Granted During Period [Abstract] Disclosure - Summary of Share-Based Awards Granted During Period [Abstract] Disclosure - Summary of Share-Based Compensation Expense [Abstract] Disclosure Summary Of Share Based Compensation Expense [Abstract] Disclosure - Summary of Share-Based Compensation Expense [Abstract] Disclosure - Summary of Tangible Long-Lived Assets [Abstract] Disclosure Summary Of Tangible Long Lived Assets [Abstract] Disclosure - Summary of Tangible Long-Lived Assets [Abstract] Disclosure - Summary of Tax Provision [Abstract] Disclosure Summary Of Tax Provision [Abstract] Disclosure - Summary of Tax Provision [Abstract] Disclosure - Summary of Tax Years Subject to Examination [Abstract] Disclosure Summary Of Tax Years Subject To Examination [Abstract] Disclosure - Summary of Tax Years Subject to Examination [Abstract] Disclosure - Tangible and Identifiable Intangible Assets and Liabilities Based on Management's Assessment of Acquisition Date Fair value of Assets Acquired and Liabilities Assumed [Abstract] Disclosure Tangible And Identifiable Intangible Assets And Liabilities Based On Managements Assessment Of Acquisition Date Fair Value Of Assets Acquired And Liabilities Assumed [Abstract] Disclosure - Tangible and Identifiable Intangible Assets and Liabilities Based on Management's Assessment of Acquisition Date Fair value of Assets Acquired and Liabilities Assumed [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Period End Date Document Period End Date Document Type Document Type Domestic Country [Member] U.S. Federal Earnings Per Share Basic Basic net income per common share Earnings Per Share Diluted Diluted net income per common share Diluted net income per share Earnings Per Share [Line Items] Earnings Per Share [Line Items] Earnings Per Share [Line Items] Earnings Per Share [Table] Earnings Per Share [Table] Earnings Per Share [Table] Earnings Per Share [Text Block] Earnings Per Share Effective Income Tax Rate Continuing Operations Estimated annual effective tax rate Estimated annual effective tax rate on current year ordinary income Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate Federal statutory rate Effect Of Exchange Rate On Cash And Cash Equivalents Effect of foreign currency exchange rates on cash and cash equivalents Eligible Item Or Group For Fair Value Option [Axis] Eligible Item or Group for Fair Value Option [Axis] Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount Share-based compensation expense capitalized Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs Report Line [Domain] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Entities [Table] Entities [Table] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity [Domain] Entity [Domain] Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Entity Wide Revenue Major Customer Percentage Percentage of revenue from major customer Equity Component [Domain] Equity Component [Domain] Equity Securities [Member] Equity Securities Europe, The Middle East And Africa Europe Middle East And Africa [Member] EMEA Excess Tax Benefit From Share Based Compensation Financing Activities Excess tax benefits from share-based payment arrangements Excess Tax Benefit From Share Based Compensation Operating Activities Excess tax benefits from share-based payment arrangements Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring Basis [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis [Table] Fair Value By Fair Value Hierarchy Level [Axis] Fair Value, Hierarchy [Axis] Fair Value Disclosures [Text Block] Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value Inputs Level 1 [Member] Fair Value, Inputs, Level 1 Fair Value Inputs Level 2 [Member] Fair Value, Inputs, Level 2 Fair Value Measurement Inputs Disclosure [Text Block] Tangible and Identifiable Intangible Assets and Liabilities Based on Management's Assessment of Acquisition Date Fair value of Assets Acquired and Liabilities Assumed Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Option Eligible Item Or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Financial Information of Parent Company [Policy Text Block] Financial Information Of Parent Company Policy [Text Block] Unaudited Interim Financial Information Finite And Indefinite Lived Intangible Assets [Line Items] Finite And Indefinite Lived Intangible Assets [Line Items] Finite And Indefinite Lived Intangible Assets [Line Items] Finite And Indefinite Lived Intangible Assets [Table] Finite And Indefinite Lived Intangible Assets [Table] Finite And Indefinite Lived Intangible Assets [Table] Finite Lived Intangible Assets Accumulated Amortization Accumulated Amortization Finite Lived Intangible Assets Acquired Purchase of intangible asset Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Gross Gross Amount Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite Lived Intangible Asset Useful Life Estimated useful life (in years) First Performance Segment First Performance Segment [Member] First Performance Segment Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value Foreign currency forward contracts not designated as hedges, fair value assets Foreign Currency Derivative Instruments Not Designated As Hedging Instruments At Fair Value Net Total, Fair Value Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value Foreign currency forward contracts not designated as hedges, fair value liabilities Foreign currency forward contracts not designated as hedges, fair value liabilities Foreign Exchange Contract [Member] Foreign Exchange Contract Foreign Government Debt Securities [Member] Foreign Government Securities Foreign [Member] Foreign [Member] Foreign Future Period Future Period [Member] Future Period General And Administrative Expense General and administrative General And Administrative Expense [Member] General and Administrative Gluster, Inc. Gluster Inc [Member] Gluster, Inc. Goodwill Ending Balance Beginning Balance Goodwill Goodwill Acquired During Period Other business acquisitions Goodwill Translation And Other Adjustments Goodwill Translation And Other Adjustments Impact of foreign currency fluctuations and other adjustments Gross Profit Gross profit I E Ireland Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Income before provision for income taxes Income before provision for income taxes Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Income Tax Disclosure [Text Block] Income Taxes Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Income Tax Examination [Line Items] Income Tax Examination [Line Items] Income Tax Examination [Table] Income Tax Examination [Table] Income Tax Examination, Years Subject to Examination Income Tax Examination Years Subject To Examination Years Subject to Income Tax Examination Income Tax Expense Benefit Provision for income taxes Provision for income taxes Income Tax Expense Benefit [Abstract] Provision for Income Taxes [Abstract] Income Tax Years Open Income Tax Years Open Statute of limitation remaining open years Increase Decrease In Accounts Payable And Accrued Liabilities Accounts payable and accrued expenses Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Deferred Revenue Deferred revenue Increase Decrease In Operating Capital [Abstract] Changes in operating assets and liabilities net of effects of acquisitions: Increase Decrease In Other Operating Capital Net Other Increase Decrease In Prepaid Expense Prepaid expenses Incremental Common Shares Attributable To Share Based Payment Arrangements Incremental shares attributable to assumed vesting or exercise of outstanding equity awards shares Indefinite Lived Intangible Assets By Major Class [Axis] Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite Lived Intangible Assets Excluding Goodwill Carrying amount for intangible assets Indefinite Lived Intangible Assets Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible Assets Disclosure [Text Block] Identifiable Intangible Assets Intangible Assets Net Excluding Goodwill Identifiable intangibles, net Net Amount Interest Bearing Deposits [Member] Interest-bearing Deposits Investment Income Interest Interest income Investments Fair Value Disclosure Available-for-sale securities Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Investments Measured at Fair Value J P Japan Lease And Rental Expense Total operating lease expense Leasehold Improvements [Member] Leasehold Improvements Legal Entity [Axis] Legal Entity [Axis] Legal Matters And Contingencies [Text Block] Legal Proceedings Liabilities And Stockholders Equity Total liabilities and stockholders' equity Liabilities And Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities Current Total current liabilities Liabilities Current [Abstract] Current liabilities: Long Term Investments Investments in debt securities, long-term Long-term Marketable Securities Major Customers [Axis] Major Customers [Axis] ManageIQ, Inc. [Member] Manageiq Inc [Member] ManageIQ, Inc. Maximum [Member] Maximum Minimum [Member] Minimum Money Market Funds [Member] Money Market Funds Municipal Bonds [Member] Municipal Bonds Name Of Major Customer [Domain] Name of Major Customer [Domain] Nature Of Operations Company Net Cash Provided By Used In Financing Activities Net cash used in financing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided By Used In Investing Activities Net cash used in investing activities Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided By Used In Operating Activities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities: Net Income Loss Net income Net income Net income, basic and diluted New Accounting Pronouncements Policy Policy [Text Block] Recent Accounting Pronouncements Nonrecurring fair value adjustment deferred revenue. Nonrecurring Fair Value Adjustment Deferred Revenue Nonrecurring fair value adjustment, deferred revenue North Carolina [Member] North Carolina [Member] North Carolina Notional Amount Of Foreign Currency Derivatives Notional value of foreign currency foreign currency forward contracts not designated as hedges Number Of Businesses Acquired Number of acquired businesses Number of Customers With Greater Than Ten Percent Revenue Number Of Customers With Greater Than Ten Percent Revenue Number of customer with greater than ten percent revenue Number Of Facilities Leased By Company Number Of Facilities Leased By Company Number of facility subleased Number of facilities to be exited. Number Of Facilities To Be Exited Number of facilities to be exited Operating Expenses Total operating expense Operating Expenses [Abstract] Operating expense: Operating Income Loss Income (loss) from operations Income from operations Operating Loss Carryforwards Operating loss carryforwards Operating Loss Carryforwards Expiration Dates Operating loss and tax credit carryforwards expiration date Other Assets Current Other current assets Other Assets Noncurrent Other assets, net Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax Foreign currency translation adjustment Other Comprehensive Income Loss Net Of Tax Total other comprehensive income (loss), net of tax Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax Reclassification for gain recognized during period Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Unrealized gain (loss) on securities during period Unrealized gain (loss) on securities during period, net of tax Other Current Assets [Member] Other Current Assets Other Foreign Country [Member] Other Foreign Country [Member] Other Foreign Other Income [Member] Other Income, Net Other Liabilities Current Other current obligations Other Liabilities Noncurrent Other long-term obligations Other Noncash Income Expense Other Other Nonoperating Income Expense Other income (expense), net Other Payments To Acquire Businesses Other payments to acquire businesses Other Tax Expense Benefit Net discrete tax benefit from a reversal of the valuation allowance on the net operating loss of a foreign subsidiary Patents [Member] Patents Payments For Proceeds From Other Investing Activities Other Payments For Repurchase Of Common Stock Purchase of treasury stock Payments Related To Tax Withholding For Share Based Compensation Payments related to net settlement of share-based compensation awards Payments To Acquire Available For Sale Securities Debt Purchase of investment in debt securities available for sale Payments To Acquire Businesses Net Of Cash Acquired Acquisition of business, net of cash acquired Payments To Acquire Intangible Assets Purchase of other intangible assets Payments To Acquire Property Plant And Equipment Purchase of property and equipment Percentage of equity interest held by related party in acquired entity prior to acquisition Percentage Of Equity Interest Held By Related Party In Acquired Entity Prior To Acquisition Percentage of equity interest held by Nexus in Gluster Percentage of revenue from major external customers. Percentage Of Revenue From Major External Customers Percentage of revenue from major external customers Performance Share Awards Performance Share Awards [Member] Performance Share Awards Performance Share Units Performance Share Units [Member] Performance Share Units Period Type [Axis] Period Type [Axis] Period Type [Axis] Period Type [Domain] Period Type [Domain] Period Type [Domain] Preferred Stock Shares Authorized Preferred stock, shares authorized Preferred Stock Shares Outstanding Preferred stock, outstanding Preferred Stock Value Preferred stock, 5,000,000 shares authorized, none outstanding Prepaid Expense Current Prepaid expenses Proceeds From Sale And Maturity Of Available For Sale Securities Proceeds from sales and maturities of investment in debt securities available for sale Proceeds From Stock Options Exercised Proceeds from exercise of common stock options Property Plant And Equipment By Type [Axis] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Net Property and equipment, net of accumulated depreciation and amortization of $180,142 and $163,892, respectively Total tangible long-lived assets Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Range [Axis] Range [Axis] Range [Member] Range [Domain] Reconciliation Of Assets From Segment To Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation Of Assets From Segment To Consolidated [Text Block] Summary of Tangible Long-Lived Assets Reconciliation of Provision of Income Taxes [Line Items] Reconciliation Of Provision Of Income Taxes [Line Items] Reconciliation of Provision of Income Taxes [Line Items] Reconciliation of Provision of Income Taxes [Table] Reconciliation Of Provision Of Income Taxes [Table] Reconciliation of Provision of Income Taxes [Table] Reconciliation Of Revenue From Segments To Consolidated [Text Block] Summary of Revenue From Unaffiliated Customers Repayments Of Other Debt Payments on other borrowings Research And Development Expense Research and development Research And Development Expense [Member] Research and Development Research [Member] Research Retained Earnings Accumulated Deficit Retained earnings Retained Earnings [Member] Retained Earnings Revenues Revenue from unaffiliated customers Total subscription and training and services revenue Total revenue from unaffiliated customers Revenues [Abstract] Revenue: Sales Revenue Services Net Training and services Schedule Of Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Table] Schedule Of Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Table] Schedule Of Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Shares Considered Anti-Dilutive for Calculating Diluted EPS Schedule Of Business Acquisitions By Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Text Block] Summary of Consideration Transferred in Connection With Acquisition Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share Table [Text Block] Reconcilation of Numerators and Denominators of Earnings Per Share Calculation Schedule Of Components Of Income Tax Expense Benefit Table [Text Block] Summary of Tax Provision Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value [Text Block] Effects of Derivative Instruments Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs By Report Line [Axis] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] 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] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Share-Based Compensation Expense Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Fair Value of Assets and Liabilities Acquired Schedule Of Finite Lived Intangible Assets Acquired As Part Of Business Combination [Text Block] Summary of Allocation of Identifiable Intangible Asset Resulting from Acquisition Schedule of Finite-Lived Intangible Assets, Amortization Expense [Table Text Block] Schedule Of Finite Lived Intangible Assets Amortization Expense Table [Text Block] Amortization Expense Associated With Identifiable Intangible Assets Schedule Of Finite Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets Table [Text Block] Summary of Identifiable Intangible Assets Schedule Of Goodwill [Text Block] Summary of Changes in Goodwill Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule Of Segment Reporting Information By Segment [Text Block] Summary of Revenue, Income (Loss) from Operation and Total Assets by Geographical Segment Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Axis] Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Axis] Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Axis] Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Domain] Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Domain] Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Plan Name [Domain] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule Of Stockholders Equity Table [Text Block] Summary of Changes in Stockholders' Equity, Including Other Comprehensive Income Second Performance Segment Second Performance Segment [Member] Second Performance Segment Segment [Domain] Segment [Domain] Segment Reporting Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting Disclosure [Text Block] Segment Reporting Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Selling And Marketing Expense Sales and marketing Selling And Marketing Expense [Member] Sales and Marketing Selling General And Administrative Expenses [Member] Selling, General and Administrative Expenses Service Based Shares and Share Units Service Based Shares And Share Units [Member] Service Based Shares and Share Units Share Based Compensation Share-based compensation expense Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Shares and share units, Shares and Shares Underlying Awards Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Shares and share units, Weighted Average Per Share Award Fair Value Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Stock options, Shares and Shares Underlying Awards Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Stock options, Weighted Average Per Share Award Fair Value Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Table [Text Block] Summary of Share-Based Awards Granted During Period Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Vested and Expected to Vest, Annual Forfeiture Rate Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Vested And Expected To Vest Annual Forfeiture Rate Annual forfeitures rate Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Award Vested After One Year Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Award Vested After One Year Percentage vested during following three years Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type [Domain] Share Price Performance Period Share Price Performance Period [Member] Share Price Performance Period Share Repurchase Program Expiration Date Share Repurchase Program Expiration Date Share repurchase program expiration date Share Repurchase Program, Repurchase Period Start Date Share Repurchase Program Repurchase Period Start Date Share repurchase program commencement date Short Term Investments Investments in debt and equity securities, short-term Short-term Marketable Securities Significant Accounting Policies [Policy Text Block] Significant Accounting Policies Policy [Text Block] Significant Accounting Policies Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies State And Local Jurisdiction [Member] U.S. State Statement Business Segments [Axis] Business Segments [Axis] Statement Equity Components [Axis] Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Income And Comprehensive Income [Abstract] Statement of Other Comprehensive Income [Abstract] Statement [Table] Statement [Table] Stockholders Equity Ending Balance Beginning Balance Total stockholders' equity Stockholders Equity [Abstract] Stockholders' equity: Stockholders Equity Note Disclosure [Text Block] Changes in Equity Stock Issued During Period Value Stock Options Exercised Exercise of common stock options Stock Options [Member] Stock Options Stock Repurchase Program Authorized Amount Common stock authorized for stock repurchase program Stock Repurchase Program Remaining Authorized Repurchase Amount Remaining common stock amount available for repurchase Subscription Revenue Subscriptions Subsequent Event [Line Items] Subsequent Event [Line Items] Subsequent Event [Member] Subsequent Event Subsequent Events [Text Block] Subsequent Events Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Summary Of Income Tax Examinations [Text Block] Summary of Tax Years Subject to Examination Targeted Percentage Of Performance Share Unit Earned By Executive Targeted Percentage Of Performance Share Unit Earned By Executive Targeted percentage of performance share units earned by executive Tax Credit Carryforward Amount U.S. tax credit carryforward Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward Name [Domain] Tax Credit Carryforward, Name [Domain] Text Block [Abstract] Text Block [Abstract] Third Performance Segment Third Performance Segment [Member] Third Performance Segment Trademarks, Copyrights and Patents Trademarks Copyrights And Patents [Member] Trademarks, Copyrights and Patents Trademarks [Member] Trademarks Tradenames and other Tradenames And Other [Member] Tradenames and Trademark Trading Symbol Trading Symbol Treasury Stock [Member] Treasury Stock Treasury Stock Shares Treasury stock, shares Treasury Stock Value Treasury stock at cost, 35,502,411 and 33,898,799 shares at November 30, 2012 and February 29, 2012, respectively Treasury Stock Value Acquired Cost Method Common stock repurchase (see NOTE 10) Unrecognized Tax Benefits Unrecognized tax benefits Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued Accrued interest and penalties related to unrecognized tax benefit Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions Additions based on tax positions related to prior years Unrecognized Tax Benefits That Would Impact Effective Tax Rate Unrecognized tax benefits that would affect the tax rate U S United States Use Of Estimates Use of Estimates U S Government Agencies Debt Securities [Member] U.S. Agencies Securities U S Treasury Securities [Member] US Treasury Securities Weighted Average Number Of Diluted Shares Outstanding Diluted Diluted shares Weighted Average Number Of Shares Outstanding [Abstract] Weighted average shares outstanding Weighted Average Number Of Shares Outstanding Basic Basic Weighted average common shares outstanding