Products Services and support Total revenue Products Services and support Total cost of revenue Gross profit Sales and marketing General and administrative Restructuring charges Amortization of purchased intangibles and incomplete technology Total operating expenses Operating income Interest expense Investment gains (losses), net Income before income taxes Provision for income taxes Net income Net income (loss) Basic net income per share Basic net income (loss) per share Shares used in computing basic income per share Diluted net income per share Diluted net income (loss) per share Shares used in computing diluted income per share Cash and cash equivalents Total short-term investments Trade receivables, net of allowances for doubtful accounts of $6,153 and $4,128, respectively Allowances for doubtful accounts Deferred income taxes Prepaid expenses and other assets Prepaid expenses other assets Prepaid expenses and other current assets Total current assets Property and equipment, net Purchased and other intangibles, net Other assets Total assets Total current liabilities Deferred revenue Debt Deferred revenue Deferred income taxes Other liabilities Total liabilities Preferred stock, $0.0001 par value; 2,000 shares authorized, none issued Common stock, $0.0001 par value; 900,000 shares authorized; 600,834 shares issued; 524,665 and 526,111 shares outstanding, respectively Additional paid-in-capital Retained earnings Total accumulated other comprehensive income, net of taxes Treasury stock, at cost (76,169 and 74,723 shares, respectively), net of reissuances Total stockholders' equity Total liabilities and stockholders' equity Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Depreciation, amortization and accretion Stock-based compensation Excess tax benefits from stock-based compensation Deferred revenue Net cash provided by operating activities Purchases of short-term investments Proceeds from sales of short-term investments Purchases of property and equipment Net cash (used for) provided by investing activities Cash and cash equivalents at end of year Cash and cash equivalents at beginning of year Net increase in cash and cash equivalents Effect of foreign currency exchange rates on cash and cash equivalents Net cash provided by (used for) financing activities Proceeds from issuance of treasury stock Purchases of treasury stock Excess tax benefits from stock-based compensation Cash paid for interest Cash paid for income taxes, net of refunds Prepaid expenses and other current assets Accrued expenses Total non-operating income (expense), net Accrued restructuring, noncurrent Accrued restructuring Expenses, Noncurrent Accrued restructuring Income taxes payable Treasury stock, shares Summary of Significant Accounting Policies Goodwill and Purchased and Other Intangibles Stock-Based Compensation Comprehensive Income (Loss) Commitments and Contingencies Fair Value Measurements Segments Income taxes payable Trade receivables Trade payables Research and development Proceeds from sale of long-term investments Non-Operating Income (Expense) Accrued restructuring Other Assets Credit Agreement Beginning Balance Ending Balance Interest and other income, net Deferred income taxes Repayments of borrowings under credit facility Accrued Restructuring Expenses Current Accrued restructuring Expenses, Current Accrued restructuring Goodwill and Purchased and Other Intangibles. Goodwill and Purchased and Other Intangibles [Abstract] Accrued Expenses. Accrued Expenses [Abstract] Commitments and Contingencies. Commitments and Contingencies [Abstract] Investment in lease receivable. Investment in lease receivable Segment Geographic Information and Significant Customers. Segment Geographic Information and Significant Customers [Abstract] Non-Operating Income (Expense) [Abstract] Operating expenses: Total cost of revenue: Revenue: Liabilities and Stockholders' Equity Assets Stockholders equity [Abstract] Long-term liabilities: Current liabilities: Current assets: Supplemental disclosures: Cash flows from financing activities: Cash flows from investing activities: Cash flows from operating activities: Changes in operating assets and liabilities, net of acquired assets and liabilities: Goodwill and Purchased and Other Intangibles [Abstract] Accrued Expenses [Abstract] Commitments and Contingencies [Abstract] Investment in lease receivable Prepaid expenses and other assets Accrued restructuring Accrued restructuring Goodwill and Purchased and Other Intangibles [Abstract] Accrued Expenses [Abstract] Commitments and Contingencies [Abstract] Industry Segment Geographic Information and Significant Customers [Abstract] Reconciliation Balances for Investments of Limited Partnership Purchased and Other Intangible Assets Other Assets 2009 Restructuring Plan Activities COMPREHENSIVE INCOME Segment Reporting STOCK-BASED COMPENSATION Trade receivables, net of allowances for doubtful accounts of $15,225 and $4,128, respectively Total current assets Common stock, $0.0001 par value; 900,000 shares authorized; 600,834 shares issued; 522,657 and 526,111 shares outstanding, respectively Common Stock, Value, Beginning Balance Common Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Ending Balance Assets Current assets: Cash and cash equivalents Short-term investments Deferred income taxes Property and equipment, net Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Purchased and other intangibles, net Liabilities and Stockholders' Equity Current liabilities: Total current liabilities Long-term liabilities: Debt Deferred revenue Income taxes payable Deferred income taxes Total liabilities Stockholders' Equity Numeric [Abstract] Preferred stock, $0.0001 par value; 2,000 shares authorized; none issued Preferred Stock, Value, Beginning Balance Preferred Stock, Value, Ending Balance Additional paid-in-capital Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Ending Balance Retained earnings Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Revenue: Products Services and support Cost of revenue: Products Gross profit Operating expenses: Research and development Sales and marketing General and administrative Restructuring charges Operating income Non-operating income (expense): Interest and other income, net Interest expense Income before income taxes Cash flows from operating activities: Net income Depreciation, amortization and accretion Stock-based compensation Deferred income taxes Excess tax benefits from stock-based compensation Changes in operating assets and liabilities, net of acquired assets and assumed liabilities: Trade receivables, net Prepaid expenses and other current assets Trade payables Accrued expenses Accrued expenses Accrued restructuring Income taxes payable Cash flows from investing activities: Purchases of short-term investments Proceeds from sales of short-term investments Purchases of property and equipment Proceeds from sale of long-term investments Proceeds from sale of long-term investments Cash flows from financing activities: Purchases of treasury stock Proceeds from issuance of treasury stock Excess tax benefits from stock-based compensation Repayments of borrowings under credit facility Other Supplemental disclosures: Allowances for doubtful accounts Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Treasury stock, shares Treasury Stock, Shares, Beginning Balance Treasury Stock, Shares, Ending Balance SIGNIFICANT ACCOUNTING POLICIES FAIR VALUE MEASUREMENTS GOODWILL AND PURCHASED AND OTHER INTANGIBLES COMMITMENTS AND CONTINGENCIES CREDIT AGREEMENT NON-OPERATING INCOME (EXPENSE) Industry Segment, Geographic Information and Significant Customers Net increase (decrease) in cash and cash equivalents Purchases of long-term investments and other assets Purchases long-term investments other assets Purchases of long-term investments and other assets. Interest expense Interest Expense Treasury stock, at cost (78,177 and 74,723 shares, respectively), net of re-issuances Treasury Stock, Value Treasury stock, at cost (76,304 and 74,723 shares, respectively), net of reissuances Purchases of short-term investments Payments to Acquire Short-term Investments Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Purchases of long-term investments and other assets Other Payments for (Proceeds from) Other Investing Activities Purchases of treasury stock Payments for Repurchase of Common Stock Repayments of borrowings on credit facility Repayments of Lines of Credit Acquisitions, net of cash acquired Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Other non-cash items Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other Trade payables Trade payables Accounts Payable, Current Accrued expenses Accrued expenses Accrued Liabilities, Current Income taxes payable Income taxes payable Accrued Income Taxes, Current Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Schedule of Other Assets, Noncurrent [Text Block] Acquisitions [Abstract] Acquisitions [Abstract] Acquisitions. ACQUISITIONS Business Combination Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Benefit Plans [Abstract] Benefit Plans [Abstract] Employee Benefit Plans. Comprehensive Income Note [Text Block] Document and Company Information [Abstract] Document and Company Information [Abstract] Document And Company Information. Adjustments to reconcile net income to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Acquisitions, net of cash acquired Cash, Cash Equivalents and Short Term Investments (Table) [Abstract] Cash, Cash Equivalents and Short Term Investments (Table) [Abstract] Cash, Cash Equivalents and Short Term Investments. Financial Instruments (Tables) [Abstract] Financial Instruments (Tables) [Abstract] Financial Instruments. Goodwill and Purchased and Other Intangibles (Tables) [Abstract] Goodwill and Purchased and Other Intangibles (Tables) [Abstract] Goodwill And Purchased And Other Intangibles. Accrued Expenses (Table) [Abstract] Accrued Expenses (Table) [Abstract] Accrued expenses. Stock Based Compensation (Tables) [Abstract] Stock Based Compensation (Tables) [Abstract] Stock Based Compensation. Net Income Per Share (Tables) [Abstract] Net Income Per Share (Tables) [Abstract] Net Income Per Share. ACCRUED EXPENSES Accrued Expenses Accrued expenses. Schedule of Finite-Lived Intangible Assets by Major Class [Text Block] Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities Available-for-sale Securities [Text Block] Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities Prior Year Cost and Estimated Fair Value of Debt Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Text Block] Segment Reporting NET INCOME PER SHARE Earnings Per Share [Text Block] Other Comprehensive Income, Net of Taxes Other Comprehensive Income, Net of Taxes Other comprehensive income (loss), net of taxes. Accumulated Other Comprehensive Income, Net of Taxes Accumulated Other Comprehensive Income, Net of Taxes Accumulated other comprehensive income, net of taxes. Financial Assets and Liabilities at Fair Value on Recurring Basis Financial Assets and Liabilities at Fair Value on Recurring Basis Prior Year Fair Value By Balance Sheet Grouping [Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Text Block] Fair Value of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Text Block] Schedule of Restructuring and Related Costs [Text Block] Assumptions Used to Value Option Grants Assumptions Used to Value Option Grants Assumptions Used To Value Option Grants. Assumptions Used to Value Employee Stock Purchase Rights Assumptions Used to Value Employee Stock Purchase Rights Assumptions Used to Value Employee Stock Purchase Rights. Stock Options Outstanding Stock Options Outstanding Stock Options Outstanding. Restricted Stock Unit Activity Restricted Stock Unit Activity Restricted Stock Unit Activity. Restricted Stock Units Outstanding Restricted Stock Units Outstanding Restricted Stock Units Outstanding. Performance Shares Outstanding Performance Shares Outstanding Performance Shares Outstanding. Total accrued expenses Cost of Revenue Other Nonoperating Income Shares used to compute basic net income per share Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted Diluted net income per share Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive income loss Other comprehensive income (loss). Other comprehensive income (loss) Net Income (Loss) Attributable to Parent Other assets Other Assets, Noncurrent Finite-Lived Intangible Assets, Net Total cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Statement [Table] Statement [Line Items] Assets [Abstract] Assets, Current [Abstract] Short-term Investments Accounts Receivable, Net, Current Deferred Tax Assets, Net, Current Assets, Current Property, Plant and Equipment, Net Goodwill Assets Liabilities and Stockholders' Equity [Abstract] Liabilities, Current [Abstract] Deferred Revenue, Current Liabilities, Current Liabilities, Noncurrent [Abstract] Long-term Debt, Excluding Current Maturities Deferred Revenue, Noncurrent Liability for Uncertain Tax Positions, Noncurrent Deferred Tax Liabilities, Noncurrent Other Liabilities, Noncurrent Liabilities Stockholders' Equity [Abstract] Preferred Stock, Value, Issued Common Stock, Value, Issued Additional Paid in Capital Retained Earnings (Accumulated Deficit) Stockholders' Equity Attributable to Parent Liabilities and Stockholders' Equity Allowance for Doubtful Accounts Receivable, Current Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Treasury Stock, Shares Revenues [Abstract] Sales Revenue, Goods, Net Sales Revenue, Services, Net Revenues Cost of Revenue [Abstract] Cost of Goods Sold Cost of Services Gross Profit Operating Expenses [Abstract] Research and Development Expense, Software (Excluding Acquired in Process Cost) Selling and Marketing Expense General and Administrative Expense Restructuring Charges Amortization of Intangible Assets Operating Expenses Operating Income (Loss) Non-Operating Income (Expense) [Abstract] Gain (Loss) on Investments Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income Tax Expense (Benefit) Earnings Per Share, Basic Net Cash Provided by (Used in) Operating Activities [Abstract] Depreciation, Depletion and Amortization, Nonproduction Share-based Compensation Deferred Income Taxes and Tax Credits Excess Tax Benefit from Share-based Compensation, Operating Activities Increase (Decrease) in Operating Capital [Abstract] Increase (Decrease) in Receivables Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Increase (Decrease) in Accounts Payable Increase (Decrease) in Accrued Liabilities Other Increase (Decrease) in Provision for Restructuring Increase (Decrease) in Accrued Income Taxes Payable Increase (Decrease) in Deferred Revenue Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from Sale of Short-term Investments Purchases Long Term Investments Other Assets Proceeds from Sale of Available-for-sale Securities, Equity Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from Sale of Treasury Stock Excess Tax Benefit from Share-based Compensation, Financing Activities Net cash used for financing activities Effect of Exchange Rate on Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Supplemental Cash Flow Information [Abstract] Income Taxes Paid, Net Interest Paid, Net Significant Accounting Policies [Text Block] Fair Value Disclosures [Text Block] Acquisitions [Abstract] Goodwill and Intangible Assets Disclosure [Text Block] Benefit Plans [Abstract] Commitments and Contingencies Disclosure [Text Block] Schedule of Line of Credit Facilities [Text Block] Other Income and Other Expense Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Cash Cash Equivalents And Short Term Investments (Tables) [Abstract] Accrued Expenses [Text Block] Assumptions Used To Value Option Grants [Text Block] Assumptions Used To Value Employee Stock Purchase Rights [Text Block] Stock Options Outstanding [Text Block] Restricted Stock Unit Activity [Text Block] Restricted Stock Units Outstanding [Text Block] Performance Shares Outstanding [Text Block] Other Comprehensive Income Loss Net Of Taxes [Text Block] Accumulated Other Comprehensive Income Net Of Taxes [Text Block] Unrealized losses (gains) on investments Unrealized Gain (Loss) on Investments, Total Unrealized Gain (Loss) on Investments Tax benefit from employee stock option plans Tax Benefit from Stock Options Exercised Maturities of short-term investments Proceeds From Maturities Of Short Term Investments Proceeds From Maturities Of Short Term Investments. Proceeds from borrowings on credit facility Proceeds from Long-term Lines of Credit Basis of Presentation section Basis of Accounting Total Restructuring Activities [Member] Total Restructuring [Member] Non Operating Income (Expense) Schedule of Other Nonoperating Income, by Component [Text Block] Cost of revenue Net Total Restructuring Member Revenue Stockholders' equity: BENEFIT PLANS Compensation Related Costs, General [Text Block] FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Amortization Expense in Future Periods Amortization Expense In Future Periods [Text Block] Amortization Expense In Future Periods. Stock Option Activity Stock Option Activity [Text Block] Stock Option Activity. Performance Share Activity 2009 Program Performance Share Activity Current Year Program [Text Block] Performance Share Activity Current Year Program. Performance Share Activity Prior Years Programs Performance Share Activity Prior Years Programs [Text Block] Performance Share Activity Prior Years Programs. Total Stock-Based Compensation Costs Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Text Block] Restructuring [Abstract] Common Stock Preferred Stock [Member] OTHER ASSETS Other Assets Non Current [Text Block] Other Assets Non Current. RESTRUCTURING Restructuring Charges [Text Block] Restructuring Charges. Statements of Stockholders' Equity and Comprehensive Income [Abstract] Beginning Balance, Shares Ending Balance, Shares Shares, Issued Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Comprehensive Income Comprehensive Income [Abstract] Total comprehensive income, net of taxes Comprehensive Income, Net of Tax, Attributable to Parent Re-issuance of treasury stock under stock compensation plans Stock Issued During Period, Value, Treasury Stock Reissued Re-issuance of treasury stock under stock compensation plans, Shares Stock Issued During Period, Shares, Treasury Stock Reissued Purchase of treasury stock, Shares Treasury Stock, Shares, Acquired Investment in lease receivable Payments to Acquire Lease Receivables Issuance costs for credit facility Payments of Debt Issuance Costs