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 Total operating expenses Operating income Interest expense Investment gains (losses), net Income before income taxes Provision for income taxes Net income Basic net income per share Shares used in computing basic net income per share Diluted net income per share Shares used in computing diluted net income per share Cash and cash equivalents Short-term investments Trade receivables, net of allowances for doubtful accounts of $5,796 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 Trade payables Accrued expenses 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; 524,095 and 526,111 shares outstanding, respectively Additional paid-in-capital Retained earnings Accumulated other comprehensive income Treasury stock, at cost (76,304 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 Net income Depreciation, amortization and accretion Stock-based compensation Excess tax benefits from stock-based compensation Other non-cash items 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 period Cash and cash equivalents at beginning of period 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 Document and Entity Information Document and Entity Information [Abstract] Summary of Significant Accounting Policies Goodwill and Purchased and Other Intangibles Accrued Expenses Restructuring Charges Stock-Based Compensation Stockholders' Equity Other Comprehensive Income (Loss) Commitments and Contingencies Financial Instruments Segments Income taxes payable Income taxes payable Maturities of short-term investments Trade receivables Trade payables Research and development Proceeds from sale of long-term investments Non-Operating Income (Expense) Balance Sheets Parenthetical Information Balance Sheets (Parenthetical) [Abstract] Accrued restructuring Adjustment Other Assets Credit Agreement Non-Operating Income (Expense) Beginning Balance Ending Balance Interest and other income, net Deferred income taxes Proceeds from borrowings under credit facility Repayments of borrowings under credit facility Subsequent Events Accrued Restructuring Expenses Current Accrued restructuring Expenses, Current Accrued restructuring SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies [Abstract] FINANCIAL INSTRUMENTS Financial Instruments [Abstract] GOODWILL AND PURCHASED AND OTHER INTANGIBLES Goodwill and Purchased and Other Intangibles [Abstract] OTHER ASSETS Other Assets [Abstract] ACCRUED EXPENSES Accrued Expenses [Abstract] EMPLOYEE BENEFIT PLAN Employee Benefit Plan [Abstract] NET INCOME PER SHARE Net Income Per Share [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies [Abstract] CREDIT AGREEMENT Credit Agreement [Abstract] STOCK-BASED COMPENSATION ABSTRACT Stock-Based Compensation [Abstract] Investment in lease receivable Investment in lease receivable SHAREHOLDERS' EQUITY ABSTRACT Shareholders Equity Abstract Stockholders' Equity [Abstract] Retirements of property and equipment Tax benefit from employee stock option plans Provision for losses on trade receivables SEGMENTS Segments [Abstract] OTHER COMPREHENSIVE INCOME (LOSS) Other Comprehensive Income (Loss) [Abstract] NON-OPERATING INCOME (EXPENSE) Non-Operating Income (Expense) [Abstract] RESTRUCTURING CHARGES Restructuring Charges Disclosure [Abstract] Restructuring Charges [Abstract] Net Income Per Share Statements of Income. Statements of Income [Abstract] Non-operating income (expense): Operating expenses: Total cost of revenue: Revenue: Balance Sheets. Balance Sheets [Abstract] Liabilities and Stockholders' Equity Assets Stockholders' equity: Long-term liabilities: Current liabilities: Current assets: Statements Of Cash Flows Statements of Cash Flows [Abstract] 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: Adjustments to reconcile net income to net cash provided by operating activities: Losses Gains on Investments Losses Gains on Investments Losses Gains on Investments. Summary of Significant Accounting Policies [Abstract] Financial Instruments [Abstract] Goodwill and Purchased and Other Intangibles [Abstract] Other Assets [Abstract] Accrued Expenses [Abstract] Stock-Based Compensation [Abstract] Employee Benefit Plan [Abstract] Other Comprehensive Income (Loss) [Abstract] Commitments and Contingencies [Abstract] Credit Agreement [Abstract] Non-Operating Income (Expense) [Abstract] Investment in lease receivable Prepaid expenses and other assets Accrued restructuring Accrued restructuring Unrealized losses (gains) on investments Document and Entity Information [Abstract] Balance Sheets [Abstract] Balance Sheets (Parenthetical) [Abstract] Statements of Income [Abstract] Statements of Cash Flows [Abstract] Other Assets Other Assets Non-current Text Block Other Assets. Stock-Based Compensation Stock Based Compensation Text Block Stock-Based Compensation. Other Comprehensive Income (Loss) Other Comprehensive Income Loss Text Block Other Comprehensive Income (Loss). Summary of Significant Accounting Policies [Abstract] Financial Instruments [Abstract] Goodwill and Purchased and Other Intangibles [Abstract] Other Assets [Abstract] Accrued Expenses [Abstract] Stock-Based Compensation [Abstract] Employee Benefit Plan [Abstract] Restructuring Charges [Abstract] Stockholders' Equity [Abstract] Other Comprehensive Income (Loss) [Abstract] Net Income Per Share [Abstract] Commitments and Contingencies [Abstract] Credit Agreement [Abstract] Non-Operating Income (Expense) [Abstract] Segments [Abstract] Fair Value of Financial Assets and Liabilities Reconciliation of Balances For Investments Of Limited Partnership Fair Value of Derivative Instruments in Balance Sheets Effect of Derivative Instruments Designated as Cash Flow Hedges Purchased and Other Intangible Assets Subject to Amortization Amortization of Purchased and Other Intangible Assets Over Their Estimated Useful Lives Other Assets Summary of Performance Shares, 2009 Program Financial Assets And Liabilities At Fair Value [Abstract] Financial Assets And Liabilities At Fair Value [Abstract] Financial assets and liabilities at fair value. Reconciliation Of Balances For Investments Of Limited Partnership [Abstract] Reconciliation of Balances For Investments Of Limited Partnership [Abstract] Reconciliation of the beginning and ending balances for investments of limited partnership. Fair Value of Derivative Instruments in Balance Sheets [Abstact] Fair Value of Derivative Instruments in Balance Sheets Abstract Fair Value of Derivative Instruments in Balance Sheets [Abstact] Fair Value of Derivative Instruments in Cash Flows [Abstract] Fair Value of Derivative Instruments in Cash Flows Abstract Fair Value of Derivative Instruments in Cash Flows Amortization For Purchased and Other Intangible Assets [Abstract] Amortization For Purchased and Other Intangible Assets [Abstract] Amortization For Purchased and Other Intangible Assets. Amortization of Purchased and Other intangible Assets Over Their Estimated Useful Lives [Abstract] Amortization of Purchased and Other intangible Assets Over Their Estimated Useful Lives [Abstract] Amortization of Purchased and Other intangible Assets Over Their Estimated Useful Lives. Summary of Stock Options [Abstract] Summary of Stock Options [Abstract] Summary of Stock Options. Summary of Restricted Stock Units [Abstract] Summary of Restricted Stock Units [Abstract] Summary of Restricted Stock Units. Summary of Performance Shares [Abstract] Summary of Performance Shares [Abstract] Summary of Performance Shares. Compensation Costs [Abstract] Compensation Costs [Abstract] Compensation Costs. Summary of Restructuring Activities [Abstract] Summary of Restructuring Activities [Abstract] Summary of Restructuring Activities. Merger Restructuring Charges [Abstract] Merger Restructuring Charges [Abstract] Merger Restructuring Charges. Basic and Diluted Net Income Per Share [Abstract] Basic and Diluted Net Income Per Share [Abstract] Basic and Diluted Net Income Per Share. Components of Other Comprehensive Income Loss [Abstract] Components of Other Comprehensive Income Loss [Abstract] Components of Other Comprehensive Income Loss. Non Operating Income Expense [Abstract] Non Operating Income Expense Table [Abstract] Non Operating Income Expense. Reportable Segments [Abstract] Reportable Segments [Abstract] Reportable Segments. Summary of Stock Options Summary of Restricted Stock Units Compensation Costs Restructuring Activities Merger Restructuring Charges Other Comprehensive Income (Loss) Non Operating Income (Expense) Reportable Segments Assumptions Used to Value Option Grants [Abstract] Assumptions Used to Value Option Grants [Abstract] Assumptions Used to Value Option Grants. Employee Stock Purchase Plan [Abstract] Employee Stock Purchase Plan [Abstract] Employee Stock Purchase Plan. Assumptions Used to Value Option Grants Employee Stock Purchase Plan Restricted Stock Units Outstanding [Abstract] Restricted Stock Units Outstanding [Abstract] Restricted Stock Units Outstanding. Summary of Performance Shares 2007 and 2008 Programs [Abstract] Summary of Performance Shares 2007 and 2008 Programs [Abstract] Summary of Performance Shares 2007 and 2008 Programs. Performance Shares Outstanding [Abstract] Performance Shares Outstanding [Abstract] Performance Shares Outstanding. Other Assets [Abstract] Other Assets Details [Abstract] Other Assets Details Accrued Expense [Abstract] Accrued Expense Details [Abstract] Accrued Expense Details. Basic and Diluted Earning Per Share Basic and Diluted Earning Per Share Text Block Basic and Diluted Earning Per Share. Performance Shares Outstanding Performance Shares Outstanding Text Block Performance Shares Outstanding. Summary of Performance Shares 2007 and 2008 Programs Summary of Performance Shares 2007 and 2008 Programs Text Block Summary of Performance Shares 2007 and 2008 Programs. Restricted Stock Units Outstanding Restricted Stock Units Outstanding Text Block Restricted Stock Units Outstanding. Accrued Expenses Accrued Expenses Text Block Accrued Expenses. Trade receivables, net of allowances for doubtful accounts of $6,474 and $4,128, respectively Total current assets Common stock, $0.0001 par value; 900,000 shares authorized; 600,834 shares issued; 524,530 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: Trade payables Accrued expenses Income taxes payable Total current liabilities Long-term liabilities: Debt Deferred revenue Income taxes payable Deferred income taxes Total liabilities Stockholders' equity: 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 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, amortization and accretion Stock-based compensation Deferred income taxes Retirements of property and equipment Tax benefit from employee stock option plans Provision for losses on trade receivables Other non-cash items Excess tax benefits from stock-based compensation Changes in operating assets and liabilities, net of acquired assets and liabilities: Trade receivables 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 Maturities 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 Proceeds from borrowings under credit facility 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 Subsequent Events [Abstract] Subsequent Events Abstract Subsequent Events. Subsequent Events Summary of Significant Accounting Policies Financial Instruments Goodwill and Purchased and Other Intangibles Accrued Expenses Restructuring Charges Stockholders' Equity Net Income Per Share Commitments and Contingencies Credit Agreement Non-Operating Income (Expense) Segments Net increase in cash and cash equivalents Employee Benefit Plan Employee Benefit Plan Text Block Employee Benefit Plan. Purchases of long-term investments and other assets Purchases long-term investments other assets Purchases of long-term investments and other assets. Interest expense Treasury stock, at cost (76,304 and 74,723 shares, respectively), net of reissuances Treasury stock, at cost (76,304 and 74,723 shares, respectively), net of reissuances Purchases of short-term investments Purchases of property and equipment Purchases of long-term investments and other assets Other Purchases of treasury stock Repayments of borrowings under credit facility