Segment Reporting [Abstract] Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Foreign Exchange Forward [Member] Foreign Exchange Forward [Member] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Australian dollar Australia, Dollars Canadian dollar Canada, Dollars Euro Euro Member Countries, Euro Phillipine peso Phillipine Peso [Member] Phillipine Peso [Member] Polish zloty Polish zloty [Member] Polish zloty [Member] Singapore dollar Singapore, Dollars Thailand baht Thailand, Baht Republic of South Africa rand South Africa, Rand Other Other1 [Member] Other1 [Member] Derivative [Line Items] Derivative [Line Items] Cash flow hedges, gross notional amount Notional Amount of Foreign Currency Cash Flow Hedge Derivatives Balance sheet hedges, gross notional amount Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Total Derivative, Notional Amount Income Statement [Abstract] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement [Line Items] Statement [Line Items] Revenues: Revenues [Abstract] Revenue from product sales Sales Revenue, Goods, Net Revenue from services Sales Revenue, Services, Net Total revenues Revenue, Net Cost of revenues: Cost of Goods and Services Sold [Abstract] Cost of product sales Cost of Goods Sold Cost of services Cost of Services Charges for product transition Production Related Impairments or Charges Amortization of purchased technology Cost of Goods Sold and Services Amortization The amount of expense recognized in the current period that reflects the allocation of the costs of intangible assets over the expected benefit period of such assets. This element applies to intangible assets directly related to goods produced and sold and services rendered by an entity during the reporting period. Total cost of revenues Cost of Goods and Services Sold Gross margin Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development expenses Research and Development Expense Selling and administrative expenses Selling, General and Administrative Expense Amortization of identifiable intangible assets Amortization of Intangible Assets Property, plant and equipment impairment charges Impairment of Long-Lived Assets Held-for-use Intangible assets and trade name impairment charges Impairment of Intangible Assets (Excluding Goodwill) Goodwill impairment charges Goodwill, Impairment Loss Restructuring charges Restructuring Charges Total operating expenses Operating Expenses Operating income (loss) Operating Income (Loss) Loss on sale of NetBoss assets Gain (Loss) on Disposition of Assets Other income (expense), net Other Nonoperating Income (Expense) Interest income Investment Income, Interest Interest expense Interest Expense Income (loss) from continuing operations before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Loss from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Loss from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net loss Net Income (Loss) Attributable to Parent Per share data: Earnings Per Share, Basic and Diluted [Abstract] Basic and diluted loss per common share from continuing operations Income (Loss) from Continuing Operations, Per Basic and Diluted Share Basic and diluted loss per common share from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Per Basic and Diluted Share Basic and diluted net loss per common share Earnings Per Share, Basic and Diluted Basic and diluted weighted average shares outstanding Weighted Average Number of Shares Outstanding, Basic and Diluted Fair Value Disclosures [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Valuation Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Valuation Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Carrying Amount Carrying (Reported) Amount, Fair Value Disclosure [Member] Fair Value Estimate of Fair Value, Fair Value Disclosure [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Cash Equivalents [Member] Cash Equivalents [Member] Time deposits Bank Time Deposits [Member] Money market funds Money Market Funds [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Other current assets, Foreign exchange forward contracts Foreign Currency Contract, Asset, Fair Value Disclosure Other accrued expenses, Foreign exchange forward contracts Foreign Currency Contracts, Liability, Fair Value Disclosure Number of Financial Institutions Number of Financial Institutions Number of Financial Institutions Money Market, net asset value, per share Net Asset Value Per Share Fair Value Disclosure Net Asset Value Per Share Fair Value Disclosure Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract] Fair Value Measurements Of Assets And Liabilities Fair Value Disclosures [Text Block] Equity [Abstract] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Total Accumulated Other Comprehensive (Loss) Income Accumulated Other Comprehensive Income (Loss) [Member] Foreign Currency Translation Adjustment (CTA) Accumulated Translation Adjustment [Member] Hedging Derivatives Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Balance as of June 29, 2012 Accumulated Other Comprehensive Income (Loss), Net of Tax Foreign currency translation gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Net unrealized gain on hedging activities Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Balance as of September 28, 2012 Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other current assets Other Current Assets [Member] Other accrued expenses Other Accrued Expenses [Member] Other Accrued Expenses [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset derivatives Derivative Asset, Fair Value, Gross Asset Liability derivatives Derivative Liability, Fair Value, Gross Liability Commitments and Contingencies Disclosure [Abstract] Property Subject to or Available for Operating Lease, by Major Property Class [Table] Property Subject to or Available for Operating Lease, by Major Property Class [Table] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Capital purchase and service agreements Capital Addition Purchase Commitments [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [Member] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Domain] Property Subject to or Available for Operating Lease [Domain] Corporate Headquarters Property Subject to Operating Lease [Member] Property Subject to or Available for Operating Lease [Line Items] Property Subject to or Available for Operating Lease [Line Items] Office Space (in sq ft) Area of Real Estate Property Future minimum commitments Operating Leases, Future Minimum Payments Due Future proceeds from non-cancelable subleases Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Rental expense for operating leases Operating Leases, Rent Expense Purchase obligations with suppliers outstanding Long-term Purchase Commitment, Amount Commercial commitments, outstanding Unrecorded Unconditional Purchase Obligation Guarantee term Guarantee Term Guarantee Term Restructuring and Related Activities [Abstract] Restructuring Activities Restructuring and Related Activities Disclosure [Text Block] Statement of Financial Position [Abstract] Assets Assets [Abstract] Current Assets Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Receivables, net Accounts, Notes, Loans and Financing Receivable, Net, Current Unbilled costs Costs in Excess of Billings on Uncompleted Contracts or Programs Expected to be Collected within One Year Inventories Inventory, Net Customer service inventories Inventory, Parts and Components, Net of Reserves Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Other current assets Other Assets, Current Total current assets Assets, Current Long-Term Assets Assets, Noncurrent [Abstract] Property, plant and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Identifiable intangible assets, net Intangible Assets, Net (Excluding Goodwill) Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Other assets Other Assets, Noncurrent Total long-term assets Assets, Noncurrent Total assets Assets Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Current Liabilities Liabilities, Current [Abstract] Current portion of long-term debt Long-term Debt, Current Maturities Accounts payable Accounts Payable, Current Accrued compensation and benefits Employee-related Liabilities, Current Redeemable preference shares Redeemable Preference Shares of Subsidiaries Redeemable preference shares of subsidiaries which are redeemable by the entity within one year. Other accrued expenses Other Accrued Liabilities, Current Advance payments and unearned income Deferred Revenue and Credits, Current Deferred income taxes Deferred Tax Liabilities, Net, Current Restructuring liabilities Restructuring Reserve, Current Total current liabilities Liabilities, Current Long-Term Liabilities Liabilities, Noncurrent [Abstract] Long-term debt Long-term Debt, Excluding Current Maturities Other long-term liabilities Other Liabilities, Noncurrent Reserve for uncertain tax positions Liability for Uncertain Tax Positions, Noncurrent Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Total Liabilities Liabilities Commitments and contingencies (Note 13) Commitments and Contingencies Stockholders' Equity Statement of Stockholders' Equity [Abstract] Preferred stock Preferred Stock, Value, Issued Common stock Common Stock, Value, Issued Additional paid-in-capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Total Stockholders' Equity Stockholders' Equity Attributable to Parent Total Liabilities and Stockholders' Equity Liabilities and Equity Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Expected dividends Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted average grant date fair value per share granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Acquisitions and Divestitures [Abstract] Acquisitions and Divestitures [Abstract] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Major Customers [Axis] Major Customers [Axis] Name of Major Customer [Domain] Name of Major Customer [Domain] Mobile Telephone Networks [Member] Mobile Telephone Networks [Member] Mobile Telephone Networks [Member] Minimum Minimum [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Accounts Receivable Accounts Receivable [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Segment, Geographical [Domain] North America North America [Member] North America [Member] Africa and Middle East Africa and Middle East [Member] Africa and Middle East [Member] Europe and Russia Europe and Russia [Member] Europe and Russia [Member] Latin America and Asia Pacific Latin America and Asia Pacific [Member] Latin America and Asia Pacific [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Entity-Wide Revenue, Major Customer, Percentage Entity-Wide Revenue, Major Customer, Percentage Number of reportable segments Number of Reportable Segments Revenue Concentration Risk, Percentage Concentration Risk, Percentage 2013 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2014 Operating Leases, Future Minimum Payments, Due in Two Years 2015 Operating Leases, Future Minimum Payments, Due in Three Years 2016 Operating Leases, Future Minimum Payments, Due in Four Years 2017 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Organization, Consolidation and Presentation of Financial Statements [Abstract] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Number of weeks in fiscal period Number of Weeks in Fiscal Period Number of Weeks in Fiscal Period Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Balance Sheet Related Disclosures [Abstract] Excess and obsolete inventory charges Excess and Obsolete Charges Excess and Obsolete Charges Customer service inventory write-down Customer Service Inventory Write Down Customer Service Inventory Write Down Charges for product transition and inventory write-downs Inventory Adjustments, Total Inventory Adjustments, Total As % of revenue Excess and Obsolescence Charge as Percentage of Revenue Excess and Obsolescence Charge as Percentage of Revenue Segment and Geographic Information Segment Reporting Disclosure [Text Block] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Revenue Sales [Member] Cost of Products Sold Cost of Sales [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedges Cash Flow Hedging [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Cash flow hedge typical maturities Derivative Instruments, Cash Flow Hedge Maturity Period Derivative Instruments, Cash Flow Hedge Maturity Period Cash flow hedge maximum maturity Maximum Length of Time Hedged in Cash Flow Hedge Balance sheet hedge typical maturity Derivative Intstrument, Interest Rate Hedge Maturity Derivative Intstrument, Interest Rate Hedge Maturity Matured derivatives to be reclassified from AOCI to income over next 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Estimate of time to reclassify matured derivatives Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer Effective portion of gain (loss) recognized in OCI Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Effective portion of gain (loss) reclassified from AOCI Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Loss associated with excluded time value recognized in cost of product sales Derivative Instruments, Loss Associated with Excluded Time Value Derivative Instruments, Loss Associated with Excluded Time Value Gain (loss) due to hedge ineffectiveness recognized in cost of product sales Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Gain (loss) recognized in cost of product sales Derivative Instruments, Gain (Loss) Recognized in Income, Net Document And Entity Information [Abstract] Document and Entity Information [Abstract] Document Information [Table] Document Information [Table] Document Information, Document [Axis] Document Information, Document [Axis] Document [Domain] Document [Domain] Document Information [Line Items] Document Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Schedule of Notional Amounts of Outstanding Derivative Positions Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Title of Individual with Relationship to Entity [Domain] Director Director [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2007 Stock Plan 2007 Stock Plan [Member] 2007 Stock Plan [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Stock Options Stock Options [Member] Performance Shares Performance Shares [Member] Restricted Stock Restricted Stock [Member] Vesting Options [Axis] Vesting Options [Axis] Vesting Options [Axis] Vesting Options [Domain] Vesting Options [Domain] Vesting Options [Domain] Restricted Stock, Option 1 Restricted Stock, Option 1 [Member] Restricted Stock, Option 1 [Member] Restricted Stock, Option 2 Restricted Stock, Option 2 [Member] Restricted Stock, Option 2 [Member] Stock Options, Vesting Option 1 Stock Options, Vesting Option 1 [Member] Stock Options, Vesting Option 1 [Member] Stock Options, Vesting Option 2 Stock Options, Vesting Option 2 [Member] Stock Options, Vesting Option 2 [Member] Stock Options, Vesting Option 3 Stock Options, Vesting Option 3 [Member] Stock Options, Vesting Option 3 [Member] Stock Options, Vesting Installment, Period [Axis] Stock Options, Vesting Installment, Period [Axis] Stock Options, Vesting Installment, Period [Axis] Stock Options, Vesting Installment, Period [Domain] Stock Options, Vesting Installment, Period [Domain] Stock Options, Vesting Installment, Period [Domain] One Year From Grant Date One Year From Grant Date [Member] One Year From Grant Date [Member] Each Year After One Year From Grant Date Each Year After One Year From Grant Date [Member] Each Year After One Year From Grant Date [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of stock incentive plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Stock Incentive Plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Stock Incentive Plans Option expiration period Share Based Compensation Arrangement by Share Based Payment, Option Expiration Period Share Based Compensation Arrangement by Share Based Payment, Option Expiration Period Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Annual vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Annual Vesting Percentage Share-based Compensation Arrangement by Share-based Payment Award, Annual Vesting Percentage Vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage Performance shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Performance shares canceled Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expired in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expired in Period Number of shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Nonvested awards, unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Nonvested awards, expense expected to be recognized, weighted average period Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Severance and Benefits Employee Severance [Member] Facilities and Other Facility Closing [Member] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Fiscal 2011 Plan Fiscal Two Thousand Eleven Plan [Member] Fiscal Two Thousand Eleven Plan [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring liability, beginning of period Restructuring Reserve Provision related of Fiscal 2011 Plan Cash payments Restructuring Reserve, Settled with Cash Restructuring liability, end of period Current portion of restructuring liability as of September 28, 2012 Long-term portion of restructuring liability as of September 28, 2012 Restructuring Reserve, Noncurrent Commitments and Contingencies Commitments Disclosure [Text Block] Income Tax Disclosure [Abstract] Unrecognized tax benefits, period increase (decrease) Unrecognized Tax Benefits, Period Increase (Decrease) Statutory U.S. Federal tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Depreciation and Amortization Depreciation, Depletion and Amortization Income Taxes Income Tax Disclosure [Text Block] Customer letters of credit being discounted Accounts Receivable Customer Letters of Credit Accounts Receivable Customer Letters of Credit Interest expense Interest Expense Related to Discount of Letters of Credit Interest Expense Related to Discount of Letters of Credit Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Customer Letters of Credits Being Discounted and Related Interest Expense Customer Letters of Credits Being Discounted and Related Interest Expense [Table Text Block] Customer Letters of Credits Being Discounted and Related Interest Expense [Table Text Block] Schedule of Inventory, Current Schedule of Inventory, Current [Table Text Block] Schedule of Adjustments to Inventory Schedule of Adjustments to Inventory [Table Text Block] Schedule of Adjustments to Inventory [Table Text Block] Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Product Warranty Liability Schedule of Product Warranty Liability [Table Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Statement of Cash Flows [Abstract] Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Amortization of identifiable intangible assets Amortization Of Identifiable Intangible Assets Amortization of Identifiable Intangible Assets Depreciation and amortization of property, plant and equipment Depreciation Intangible asset impairment charges Impairment of Intangible Assets, Finite-lived Property, plant and equipment impairment charges Other Asset Impairment Charges Bad debt expenses Provision for Doubtful Accounts Share-based compensation expense Share-based Compensation Deferred income tax expense Increase (Decrease) in Deferred Income Taxes Charges for inventory write-downs Inventory Write-down Loss on disposition of the WiMAX business Disposal Group Discontinued Operation Gain Loss on Measurement and Disposal The gain (loss) resulting from the measurement and sale of a disposal group that is a discontinued operation. Loss on sale of NetBoss assets Other Other Operating Activities, Cash Flow Statement Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Receivables Increase (Decrease) in Accounts Receivable Unbilled costs Increase (Decrease) in Unbilled Receivables Inventories Increase (Decrease) in Inventories Customer service inventories Increase Decrease in Customer Service Inventories Increase decrease in customer service inventories Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Advance payments and unearned income Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits Income taxes payable or receivable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash received from sale of NetBoss assets Proceeds from Sale of Productive Assets Cash disbursed related to sale of WiMAX business, net Disbursements Related to Sale of Business Disbursements Related to Sale of Business Cash payments for business acquisition, net Payments to Acquire Businesses, Net of Cash Acquired Proceeds from sale of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Sales and maturities of short-term investments Proceeds from Sale, Maturity and Collection of Short-term Investments Additions of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Additions of capitalized software Payments to Acquire Other Productive Assets Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from short-term debt arrangement Proceeds from Short-term Debt Payments on short-term debt arrangement Repayments of Short-term Debt Proceeds from long-term debt Proceeds from Issuance of Long-term Debt Payments on long-term debt Repayments of Long-term Debt Proceeds from share-based compensation awards Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Redemption of preference shares Payments for Redemption of Subsidiary Preference Shares Payments for Redemption of Subsidiary Preference Shares Payments on capital lease obligations Repayments of Debt and Capital Lease Obligations Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid (received) during the year for: Cash Paid Received During the Year [Abstract] Cash Paid Received During the Year [Abstract] Interest Interest Paid Income taxes Income Taxes Paid Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Schedule of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Land [Member] Buildings and leasehold improvements Buildings and Leasehold Improvements [Member] Buildings and Leasehold Improvements [Member] Software Software Development [Member] Machinery and equipment Machinery and Equipment [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, plant and equipment, gross Property, Plant and Equipment, Gross Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Statement of Other Comprehensive Income [Abstract] Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Change in unrealized gain or loss on hedging activities Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Other comprehensive income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent The Company and Basis of Presentation Business Description and Basis of Presentation [Text Block] 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] 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] Cost of product sales and services Research and development Research and Development Expense [Member] Selling and administrative Selling, General and Administrative Expenses [Member] Discontinued operations Discontinued Operations [Member] Discontinued Operations [Member] Options Restricted stock awards Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] WiMAX WiMAX [Member] WiMAX [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Discontinued operations contingent consideration Discontinued Operations Contingent Consideration Discontinued Operations Contingent Consideration Potential cash payments to EION for collections of WiMAX receivables Discontinued Operations Potential Cash Payments to Acquiree Discontinued Operations Potential Cash Payments to Acquiree Payment on Divestiture Payables Payment on Divestiture Payables Payment on Divestiture Payables Impairment charges or loss on disposition related to WiMAX business Accrued Liabilities related to disposition of WiMAX Accrued Liabilities Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Revenues Disposal Group, Including Discontinued Operation, Revenue Loss from operations of WiMAX Disposal Group, Including Discontinued Operation, Operating Income (Loss) Loss on disposal Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Income taxes Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation Total loss from discontinued operations Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Schedule of Restructuring and Related Costs [Table] Severance and benefits Facilities and other Severance and benefits Severance Costs Facilities and other Business Exit Costs Cumulative Costs Incurred Through September 28, 2012 Restructuring and Related Cost, Cost Incurred to Date Estimated Additional Costs to be Incurred Restructuring and Related Cost, Expected Cost Total Restructuring Costs Expected to be Incurred Restructuring and Related Cost Total Expected Cost Restructuring and Related Cost Total Expected Cost Earnings Per Share [Abstract] Net Income (Loss) per Share of Common Stock Earnings Per Share [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Total potential shares of common stock excluded Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Divestiture Acquisitions and Divestitures [Text Block] Acquisitions and Divestitures [Text Block] Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Prior Facility Prior Facility [Member] Prior Facility [Member] Silicon Valley Bank Silicon Valley Bank [Member] Silicon Valley Bank [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Term Loan Term Loan [Member] Term Loan [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Letter of Credit Letter of Credit [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt Instrument, Initial Term Debt Instrument, Initial Term Debt Instrument, Initial Term Repayments of short-term debt Loan term Debt Instrument, Term of Loan Loan Term Term loan amount Debt Instrument, Face Amount Number of equal monthly payments Debt Instrument, Number of equal Monthly Payments Debt Instrument, Number of equal Monthly Payments Available credit under credit facility Debt Instrument, Unused Borrowing Capacity, Amount Line of credit facility, amount outstanding Line of Credit Facility, Amount Outstanding Total outstanding debt Long-term Debt, Gross Debt instrument, description of variable rate basis Debt Instrument, Description of Variable Rate Basis Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Short-term debt, weighted average interest rate Short-term Debt, Weighted Average Interest Rate Fixed interest rate Debt Instrument, Interest Rate, Stated Percentage Derivative Financial Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Credit Facility And Debt Debt Disclosure [Text Block] Finished products Inventory, Finished Goods, Net of Reserves Work in process Inventory, Work in Process, Net of Reserves Raw materials and supplies Inventory, Raw Materials and Supplies, Net of Reserves Inventories Deferred cost of sales included within finished goods Other Inventory, Capitalized Costs, Gross Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] Balance as of the beginning of the fiscal year Product Warranty Accrual Warranty provision for revenue recorded during the period Product Warranty Accrual, Warranties Issued Consumption during the period Product Warranty Accrual, Payments Balance as of the end of the period Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Restructuring and Related Costs Schedule of Restructuring and Related Costs [Table Text Block] Schedule of Restructuring Reserve by Type of Cost Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Accounts receivable Accounts Receivable, Gross, Current Notes receivable due within one year Notes, Loans and Financing Receivable, Gross, Current Receivables, gross Accounts Receivable, Notes, Loans and Financing Receivable, Gross Accounts Receivables Notes Loans and Financing Receivable Gross Less allowances for collection losses Allowance for Doubtful Accounts Receivable, Current Receivables Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block]