Document and Entity Information Accrued litigation settlements Increase (Decrease) in Accrued Litigation Settlements The net change during the reporting period in the aggregate amount of ligation settlements. REVENUE RECOGNITION REVENUE RECOGNITION Revenue Recognition [Text Block] This element represents the principles adopted by the entity for recognition of revenue for various products and services. Adjustments to Additional Paid in Capital, Forfeited Stock Options, Requisite Service Period Recognition Settlement payment for forfeited stock options Represents the amount of recognized forfeited stock options during the period. CANCELLATION AND RETIREMENT OF TREASURY STOCK Amendment Description Accounts Payable and Accrued Liabilities Disclosure [Text Block] ACCRUED EXPENSES Amendment Flag Current Fiscal Year End Date Accounts Receivable, Net, Current Accounts receivable, net of allowance for doubtful accounts of $0 at both March 30, 2012 and December 31, 2011 Document Period End Date Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Additional paid-in capital Additional Paid in Capital, Common Stock Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts (in dollars) Amortization of Intangible Assets Amortization of intangible assets Condensed Consolidated Balance Sheets Basic (in dollars per share) Earnings Per Share, Basic Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents, beginning of year Cash and cash equivalents, end of period Interest Paid Interest paid Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventory Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses and other long-term liabilities Increase (Decrease) in Accrued Liabilities Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Common stock, $0.001 par value; 600,000,000 shares authorized; 279,893,911 shares issued and outstanding at March 30, 2012 and 279,318,396 shares issued and outstanding at December 31, 2011 Common Stock, Value, Issued Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss) Note [Text Block] COMPREHENSIVE INCOME (LOSS) Concentration Risk Disclosure [Text Block] MAJOR CUSTOMERS Product Cost of Goods Sold Total cost of revenue Cost of Revenue Cost of revenue: Cost of Revenue [Abstract] Service Cost of Services Total current liabilities Liabilities, Current Liabilities, Current [Abstract] Current liabilities: Deferred income taxes Deferred Income Tax Expense (Benefit) Deferred Tax Assets, Net, Current Deferred income taxes Current portion of deferred revenue Deferred Revenue, Current Deferred revenue Deferred Revenue, Noncurrent Diluted (in dollars per share) Earnings Per Share, Diluted Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Effect of exchange rate changes on cash and cash equivalents Share-based Compensation Stock-based compensation Foreign Currency Disclosure [Text Block] FOREIGN CURRENCY TRANSLATION Gain (Loss) on Sale of Property Plant Equipment (Gain) loss on disposal of property and equipment General and administrative General and Administrative Expense Gross profit Gross Profit Condensed Consolidated Statements of Operations Income Tax Disclosure [Text Block] INCOME TAXES Proceeds from Income Tax Refunds Income tax refunds received Increase (Decrease) in Other Operating Assets Other operating assets Increase in restricted cash Increase (Decrease) in Restricted Cash Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Goodwill Goodwill Interest Expense Interest expense Inventory, Net Inventory Total liabilities Liabilities Total liabilities and stockholders' equity Liabilities and Equity Liabilities and Equity [Abstract] Liabilities and stockholders' equity Long-term Investments Investments Marketable Securities, Current Marketable securities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Net loss Net Income (Loss) Available to Common Stockholders, Basic Net loss Loss from operations Operating Income (Loss) Total revenue Revenues Revenue: Revenues [Abstract] Other Assets, Current Other current assets Other income, net Other Nonoperating Income (Expense) Pension and Other Postretirement Benefits Disclosure [Text Block] EMPLOYEE DEFINED CONTRIBUTION PLAN Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Proceeds from Sale and Maturity of Marketable Securities Sale/maturities of marketable securities Proceeds from Stock Options Exercised Proceeds from exercise of stock options Property, Plant and Equipment, Net Property and equipment, net PROPERTY AND EQUIPMENT Payments to Acquire Intangible Assets Purchase of intangible assets Payments to Acquire Marketable Securities Purchases of marketable securities Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment ACCOUNTS RECEIVABLE, NET Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Related Party Transactions Disclosure [Text Block] RELATED PARTIES Repayments of Long-term Capital Lease Obligations Principal payments of capital lease obligations Restructuring Restructuring Charges Restructuring and Related Activities Disclosure [Text Block] RESTRUCTURING ACCRUAL Accumulated deficit Retained Earnings (Accumulated Deficit) Product Sales Revenue, Goods, Net Service Sales Revenue, Services, Net Inventory Disclosure [Text Block] INVENTORY Segment Reporting Disclosure [Text Block] GEOGRAPHIC INFORMATION Sales and marketing Selling and Marketing Expense Condensed Consolidated Statements of Cash Flows Condensed Consolidated Statements of Comprehensive Loss Consolidated Statements of Stockholders' Equity and Comprehensive Loss Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDER RIGHTS PLAN Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDER RIGHTS PLAN Goodwill and Intangible Assets Disclosure [Text Block] INTANGIBLE ASSETS AND GOODWILL Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Income Taxes Paid Income taxes paid Assets, Current Total current assets Assets, Current [Abstract] Current assets: Treasury Stock Treasury Stock [Member] Cancellation and retirement of treasury stock (in shares) Treasury Stock, Shares, Retired Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Common Stock Common Stock [Member] Property, Plant and Equipment Disclosure [Text Block] PROPERTY AND EQUIPMENT Research and development Research and Development Expense Assets Total assets Current portion of long-term liabilities Other Liabilities, Current Long-term liabilities Other Liabilities, Noncurrent Deferred income taxes Deferred Tax Assets, Net, Noncurrent Disclosure of Compensation Related Costs, Share-based Payments [Text Block] STOCK-BASED COMPENSATION PLANS Scenario, Unspecified [Domain] Statement [Table] Statement, Scenario [Axis] Assets [Abstract] Assets Statement [Line Items] Statement Capital Lease Obligations Incurred Property and equipment acquired under operating lease MAJOR CUSTOMERS Fair Value Disclosures [Text Block] CASH EQUIVALENTS, MARKETABLE SECURITIES AND LONG-TERM INVESTMENTS Quarterly Financial Information [Text Block] QUARTERLY RESULTS (UNAUDITED) Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash provided by investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by financing activities Treasury stock, at cost; 2,296,910 common shares Treasury Stock, Value Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Stockholders' Equity, Period Increase (Decrease) Deferred revenue Increase (Decrease) in Deferred Revenue Other Assets, Noncurrent Other assets Operating expenses: Operating Expenses [Abstract] Total operating expenses Operating Expenses Loss per share: EARNINGS (LOSS) PER SHARE Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Treasury Stock, Shares Treasury stock, common shares Total stockholders' equity Stockholders' Equity Attributable to Parent Balance Balance Income tax provision Income Tax Expense (Benefit) Preferred stock, $0.01 par value; 5,000,000 shares authorized, none issued and outstanding Preferred Stock, Value, Issued COMPREHENSIVE INCOME (LOSS) Statement, Equity Components [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Deficit Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Equity Component [Domain] Capital Expenditures Incurred but Not yet Paid Capital expenditures incurred, but not yet paid Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options Proceeds from sale of common stock in connection with employee stock purchase plan Issuance of common stock in connection with employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Vesting of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Issuance of vested performance-based stock awards (in shares) Issuance of common stock in connection with employee stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Vesting of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock Issued During Period, Shares, Period Increase (Decrease) Comprehensive Loss Comprehensive Income [Member] Supplemental disclosure of non-cash investing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Earnings Per Share [Text Block] EARNINGS (LOSS) PER SHARE Shares used to compute loss per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Depreciation, Depletion and Amortization Depreciation and amortization of property and equipment Commitments and contingencies (Note 12) Commitments and Contingencies. Adjustments to reconcile net loss to cash flows used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Nature of Operations [Text Block] NATURE OF THE BUSINESS Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustments Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Unrealized (loss) gain on available-for-sale marketable securities Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Treasury Stock, Retired, Cost Method, Amount Cancellation and retirement of treasury stock Cancellation and retirement of treasury stock Net Cash Provided by (Used in) Continuing Operations Net increase in cash and cash equivalents Adjustments Related to Tax Withholding for Share-based Compensation Payment of tax withholding obligations related to net share settlements of restricted stock awards Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] BASIS OF PRESENTATION Interest income, net Interest Income (Expense), Nonoperating, Net ACCRUED EXPENSES NATURE OF THE BUSINESS ACCOUNTS RECEIVABLE, NET Restricted Stock, Value, Shares Issued Net of Tax Withholdings Shares of restricted stock returned to the Company under net share settlements to satisfy tax withholding obligations Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Shares of restricted stock returned to the Company under net share settlements to satisfy tax withholding obligations (in shares) COMMITMENTS AND CONTINGENCIES INCOME TAXES INTANGIBLE ASSETS AND GOODWILL CASH EQUIVALENTS, MARKETABLE SECURITIES AND LONG-TERM INVESTMENTS INVENTORY LONG-TERM LIABILITIES EMPLOYEE DEFINED CONTRIBUTION PLAN Treasury Stock [Text Block] CANCELLATION AND RETIREMENT OF TREASURY STOCK QUARTERLY RESULTS (UNAUDITED) LONG-TERM LIABILITIES Debt and Capital Leases Disclosures [Text Block] STOCK-BASED COMPENSATION PLANS RESTRUCTURING ACCRUAL BASIS OF PRESENTATION GEOGRAPHIC INFORMATION FOREIGN CURRENCY TRANSLATION RELATED PARTIES Supplemental disclosure of non-cash financing activities: Noncash Investing and Financing Items [Abstract]