Organization, Consolidation and Presentation of Financial Statements [Abstract]
Amortized Cost
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in 1 year or less
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis
Due in 1-2 years
Available-for-sale Securities, Debt Maturities, After Year One and Before Two, Amortized Cost Basis
Available-for-sale Securities, Debt Maturities, After Year One and Before Two, Amortized Cost Basis
Due in 2-5 years
Available-for-sale Securities, Debt Maturities, After Year Two Through Five, Amortized Cost Basis
Available-for-sale Securities, Debt Maturities, After Year Two Through Five, Amortized Cost Basis
Total investments in available for sale debt securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis
Fair Value
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in 1 year or less
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value
Due in 1-2 years
Available-for-sale Securities, Debt Maturities, After Year One and Before Two, Fair Value
Available-for-sale Securities, Debt Maturities, After Year One and Before Two, Fair Value
Due in 2-5 years
Available-for-sale Securities, Debt Maturities, After Year Two Through Five, Fair Value
Available-for-sale Securities, Debt Maturities, After Year Two Through Five, Fair Value
Total investments in available for sale debt securities
Available-for-sale Securities, Debt Maturities, Fair Value Amount
Available-for-sale Securities, Debt Maturities, Fair Value Amount
Statement of Financial Position [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Short-term investments
Short-term Investments
Accounts receivable, net of allowances of $1,518 at March 31, 2013 and $1,646 at June 30, 2012
Accounts Receivable, Net, Current
Inventories
Inventory, Net
Deferred income taxes
Deferred Tax Assets, Net of Valuation Allowance, Current
Prepaid expenses and other current assets
Prepaid Expenses and Other Current Assets, Net
Prepaid Expenses and Other Current Assets, Net
Assets held for sale
Assets Held-for-sale, Current
Total current assets
Assets, Current
Property and equipment, net
Property, Plant and Equipment, Net
Marketable securities
Marketable Securities, Noncurrent
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Other assets
Other Assets, Noncurrent
Total assets
Assets
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued compensation and benefits
Employee-related Liabilities, Current
Restructuring liabilities
Restructuring Reserve, Current
Accrued warranty
Product Warranty Accrual, Current
Deferred revenue, net
Deferred Revenue, Current
Deferred distributors revenue, net of cost of sales to distributors
Deferred revenue, net of cost of sales to distributors
Deferred revenue, net of cost of sales to distributors
Other accrued liabilities
Other Liabilities, Current
Total current liabilities
Liabilities, Current
Deferred revenue, less current portion
Deferred Revenue, Noncurrent
Other long-term liabilities
Other Liabilities, Noncurrent
Commitments and contingencies (Note 8)
Commitments and Contingencies
Stockholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Convertible preferred stock, $.001 par value, issuable in series, 2,000,000 shares authorized; none issued
Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value
Common stock, $.001 par value, 750,000,000 shares authorized; 92,976,291 shares issued and outstanding at March 31, 2013 and 133,965,455 and 94,333,619 shares issued and outstanding, respectively, at June 30, 2012
Common Stock, Value, Issued
Treasury stock, zero and 39,631,836 shares at March 31, 2013 and June 30, 2012, respectively
Treasury Stock, Value
Additional paid-in-capital
Additional Paid in Capital
Accumulated other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Earnings Per Share [Abstract]
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]
Stock Options
Stock Options [Member]
Restricted stock units
Restricted Stock Units (RSUs) [Member]
Employee Stock Purchase Plan
Employee Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income
Net Income (Loss) Attributable to Parent
Weighted-average shares used in per share calculation - basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Incremental shares using the treasury stock method:
Weighted Average Number Diluted Shares Outstanding Adjustment [Abstract]
Incremental shares
Incremental Common Shares Attributable to Share-based Payment Arrangements
Weighted-average shares used in per share calculation - diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Net income per share - basic (in dollars per share)
Earnings Per Share, Basic
Net income per share - diluted (in dollars per share)
Earnings Per Share, Diluted
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Type [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Termination Benefits
Employee Severance [Member]
Excess Facilities
Facility Closing [Member]
Other Cost
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent
Restructuring charge, net of reversals
Restructuring Charges, Net of Reversals
Restructuring Charges, Net of Reversals
Restructuring Reserve [Roll Forward]
Restructuring Reserve [Roll Forward]
Restructuring liabilities, beginning balance
Restructuring Reserve
Period charges
Restructuring Charges
Period reversals
Restructuring Reserve, Period Reversals
Restructuring Reserve, Period Reversals
Period payments
Payments for Restructuring
Restructuring liabilities, ending balance
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Derivative, by Nature [Axis]
Derivative, by Nature [Axis]
Derivative, Name [Domain]
Derivative, Name [Domain]
Forward Contracts
Forward Contracts [Member]
Asset Class [Axis]
Asset Class [Axis]
Fair Value by Asset Class [Domain]
Fair Value by Asset Class [Domain]
Municipal Bonds
Municipal Bonds [Member]
Federal Agency Notes
Federal Agency Notes [Member]
Federal Agency Notes [Member]
Money Market Funds
Money Market Funds [Member]
Corporate Notes and Bonds
Corporate Notes and Bonds [Member]
Corporate Notes and Bonds [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Recurring
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Level 3
Fair Value, Inputs, Level 3 [Member]
Total
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
Assets [Abstract]
Investments
Investments, Fair Value Disclosure
Foreign currency forward contracts
Foreign Currency Contract, Asset, Fair Value Disclosure
Total
Assets, Fair Value Disclosure
Equity [Abstract]
Common Stock Repurchases and Retirement
Treasury Stock [Text Block]
Number of treasury stock shares retired
Treasury Stock, Shares, Retired
Reduction in par value and APIC from retired treasury stock
Treasury Stock, Retired, Cost Method, Amount
Share repurchase program authorized amount
Stock Repurchase Program, Authorized Amount
Share repurchase program term
Stock Repurchase Program, Term
Stock Repurchase Program, Term
Number of common stock shares repurchased
Stock Repurchased During Period, Shares
Value of common stock shares repurchased
Stock Repurchased During Period, Value
Share-based Compensation [Abstract]
Share-based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Income Statement [Abstract]
Net revenues:
Revenue, Net [Abstract]
Product
Sales Revenue, Goods, Net
Service
Sales Revenue, Services, Net
Total net revenues
Revenue, Net
Cost of revenues:
Cost of Revenue [Abstract]
Product
Cost of Goods Sold
Service
Cost of Services
Total cost of revenues
Cost of Goods and Services Sold
Gross profit:
Gross Profit [Abstract]
Product
Gross profit, Product
Gross profit - Product
Service
Gross profit, Service
Gross profit - Service
Total gross profit
Gross Profit
Operating expenses:
Operating Expenses [Abstract]
Research and development
Research and Development Expense
Sales and marketing
Selling and Marketing Expense
General and administrative
General and Administrative Expense
Litigation settlement, net
Litigation Settlement, Gross
Gain on sale of facilities
Gain (Loss) on Sale of Property Plant Equipment
Total operating expenses
Operating Expenses
Operating (loss) income
Operating Income (Loss)
Interest income
Interest Income, Other
Interest expense
Interest Expense
Other expense, net
Other Nonoperating Income (Expense)
(Loss) income 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)
Net (loss) income
Basic and diluted net income per share:
Shares used in per share calculation - basic (in shares)
Shares used in per share calculation – diluted (in shares)
Accounting Policies [Abstract]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Comprehensive Income
Comprehensive Income, Policy [Policy Text Block]
Available-for-sale Securities
Investment, Policy [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Long-Lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Deferred Revenue, Net
Revenue Recognition, Deferred Revenue [Policy Text Block]
Guarantees and Product Warranties
Guarantees, Indemnifications and Warranties Policies [Policy Text Block]
Fair Value
Fair Value of Financial Instruments, Policy [Policy Text Block]
Legal Proceedings
Legal Costs, Policy [Policy Text Block]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Income Tax Disclosure [Abstract]
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Foreign
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits
Unrecognized Tax Benefits
Unrecognized tax benefits that would impact effective tax rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Unrecognized tax benefits resulting in adjustments to deferred tax assets
Unrecognized Tax Benefits Resulting in Adjustments to Deferred Tax Assets
Unrecognized Tax Benefits Resulting in Adjustments to Deferred Tax Assets
Amount of decrease in unrealized tax benefit from expiration of statute of limitations
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
Accrued penalties and interest for unrecognized income tax benefits
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Schedule of Restructuring and Related Costs
Schedule of Restructuring and Related Costs [Table Text Block]
Cash, Cash Equivalents, Shot-Term Investments and Marketable Securities
Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block]
Available-for-sale Securities
Available-for-sale Securities [Table Text Block]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]
Schedule of Deferred Revenue, Net
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
Change in Deferred Support Revenue
Deferred Revenue Roll Forward [Table Text Block]
Deferred Revenue Roll Forward [Table Text Block]
Schedule of Deferred Distributors Revenue
Schedule of Deferred Distributors Revenue [Table Text Block]
Schedule of Deferred Distributors Revenue [Table Text Block]
Schedule of Product Warranty Liability
Schedule of Product Warranty Liability [Table Text Block]
Schedules of Concentration of Risk, by Risk Factor
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Statement of Cash Flows [Abstract]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Decrease in accrued investment income
Increase (Decrease) in Accrued Investment Income Receivable
Depreciation and amortization
Depreciation, Depletion and Amortization
Amortization of intangible assets
Amortization of Intangible Assets
Provision for doubtful accounts
Provision for Doubtful Accounts
Deferred income taxes
Increase (Decrease) in Deferred Income Taxes
Stock-based compensation
Share-based Compensation
Gain on disposition of long lived assets, net
Gain (Loss) on Disposition of Assets
Loss on retirement of assets
Gain (Loss) on Retirement of Assets
Gain (Loss) on Retirement of Assets
Unrealized gain on foreign exchange transactions
Foreign Currency Transaction Gain (Loss), Unrealized
Changes in operating assets and liabilities, net
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Inventories
Increase (Decrease) in Inventories
Prepaid expenses and other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Accounts payable
Increase (Decrease) in Accounts Payable
Accrued compensation and benefits
Increase (Decrease) in Employee Related Liabilities
Restructuring liabilities
Increase (Decrease) in Restructuring Reserve
Other current and long term liabilities
Increase (Decrease) in Other Operating Liabilities
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Purchases of investments
Payments to Acquire Investments
Proceeds from maturities of investments and marketable securities
Proceeds From Maturities of Investments and Marketable Securities
Proceeds from maturities of investments and marketable securities
Proceeds from sales of investments and marketable securities
Proceeds From Sales of Investments and Marketable Securities
Proceeds from sales of investments and marketable securities
Purchases of intangible assets
Payments to Acquire Intangible Assets
Proceeds from sales of facilities
Proceeds from Sale of Property, Plant, and Equipment
Net cash provided by (used in) investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock
Proceeds from Issuance of Common Stock
Repurchases of common stock
Payments for Repurchase of Common Stock
Deposit received from sale of buildings
Increase (Decrease) in Deposits Received from Sale of Buildings
Increase (Decrease) in Deposits Received from Sale of Buildings
Net cash (used in) provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Foreign currency effect on cash
Effect of Exchange Rate on Cash and Cash Equivalents
Net increase (decrease) in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Movement in Standard Product Warranty Accrual [Roll Forward]
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance beginning of period
Standard Product Warranty Accrual
New warranties issued
Standard Product Warranty Accrual, Warranties Issued
Warranty expenditures
Standard Product Warranty Accrual, Payments
Balance end of period
Restructuring Charges
Restructuring and Related Activities Disclosure [Text Block]
Balance Sheet Accounts [Table]
Balance Sheet Accounts [Table]
Balance Sheet Accounts [Table]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Customer Concentration Risk
Customer Concentration Risk [Member]
Significant Acquisitions and Disposals by Transaction [Axis]
Significant Acquisitions and Disposals by Transaction [Axis]
Significant Acquisitions and Disposals, Transaction [Domain]
Significant Acquisitions and Disposals, Transaction [Domain]
Santa Clara Headquarters
Santa Clara Headquarters [Member]
Santa Clara Headquarters [Member]
Investment Type [Axis]
Investment Type [Axis]
Investment Type Categorization [Domain]
Investment Type Categorization [Domain]
Cash Equivalents
Cash Equivalents [Member]
Short-term Investments
Short-term Investments [Member]
Marketable Securities
Marketable Securities [Member]
Marketable Securities [Member]
Available-for-sale Securities
Available-for-sale Securities [Member]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Major Types of Debt and Equity Securities [Domain]
Government and Corporate Debt Securities
Government and Corporate Debt Securities [Member]
Government and Corporate Debt Securities [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Balance Sheet Accounts [Line Items]
Balance Sheet Accounts [Line Items]
Balance Sheet Accounts [Line Items]
Maturity period for investments
Investment Maturity, Period
Investment Maturity, Period
Number of securities with unrealized losses
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
Number of investment securities
Available-for-sale, Number of Positions
Available-for-sale, Number of Positions
Number of acres of land sold
Area of Real Estate Property
Net cash proceeds from sale of real estate
Gain on sale of property
Maximum investment in one obligor or maker (percent)
Concentration Risk, Investment Policy in One Obligor or Maker, Percentage, Maximum
Concentration Risk, Investment Policy in One Obligor or Maker, Percentage, Maximum
Concentration risk
Concentration Risk, Percentage
Extended warranty contracts period
Extended Warranty Contracts, Period
Extended Warranty Contracts, Period
Standard hardware warranty period
Standard Hardware Warranty, Period
Standard Hardware Warranty, Period
Standard software warranty period
Standard Software Warranty, Period
Standard Software Warranty, Period
Limited lifetime hardware warranty maximum period after end of sale of product
Limited Lifetime Hardware Warranty, Maximum Period Following End of Product Sales
Limited Lifetime Hardware Warranty, Maximum Period Following End of Product Sales
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Loss Contingencies [Table]
Loss Contingencies [Table]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case Type [Domain]
Patent Infringement Litigation Versus Extreme Networks
Patent Infringement Litigation Versus Extreme Networks [Member]
Patent Infringement Litigation Versus Extreme Networks [Member]
Patent Infringement Litigation Versus Enterasys
Patent Infringement Litigation Versus Enterasys [Member]
Patent Infringement Litigation Versus Enterasys [Member]
Patent Infringement Litigation Versus Chrismar Systems, Inc.
Patent Infringement Litigation Versus Chrismar Systems, Inc. [Member]
Patent Infringement Litigation Versus Chrismar Systems, Inc. [Member]
Litigation Status [Axis]
Litigation Status [Axis]
Litigation Status [Domain]
Litigation Status [Domain]
Pending Litigation
Pending Litigation [Member]
Gain Contingencies, Nature [Axis]
Gain Contingencies, Nature [Axis]
Gain Contingency, Nature [Domain]
Gain Contingency, Nature [Domain]
Positive Outcome of Litigation
Positive Outcome of Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Non-cancelable purchase commitments
Purchase Commitment, Remaining Minimum Amount Committed
Number of patents owned
Loss Contingency, Patents Owned in Litigation
Loss Contingency, Patents Owned in Litigation
Patents owned in petition for reexamination (in patents)
Loss Contingency, Patents Owned in Petition for Reexamination
Loss Contingency, Patents Owned in Petition for Reexamination
Patents associated with dismissed litigation (in patents)
Loss Contingency, Patents Associated with Dismissed Litigation
Loss Contingency, Patents Associated with Dismissed Litigation
Patents associated with successful litigation (in patents)
Loss Contingency, Patents Associated with Successful Litigation
Loss Contingency, Patents Associated with Successful Litigation
Amount awarded by court
Gain Contingency, Amount Awarded by Court
Gain Contingency, Amount Awarded by Court
Proceeds from legal settlement
Proceeds from Legal Settlements
Estimate for range of loss of litigation
Loss Contingency, Estimate of Possible Loss
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Canceled
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Options outstanding, ending balance
Exercisable at period end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Vested and expected to vest at period end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Weighted-Average Exercise Price Per Share
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Canceled (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Options outstanding, ending balance (in dollars per share)
Exercisable (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Vested and expected to vest (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Weighted-Average Remaining Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted-Average Remaining Contractual Term [Abstract] [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted-Average Remaining Contractual Term [Abstract]
Options outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Exercisable
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]
Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value
Options outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Exercisable
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Income Taxes
Income Tax Disclosure [Text Block]
Deferred Revenue Arrangement, by Type [Table]
Deferred Revenue Arrangement, by Type [Table]
Deferred Revenue Arrangement Type [Axis]
Deferred Revenue Arrangement Type [Axis]
Deferred Revenue Arrangement Type [Domain]
Deferred Revenue Arrangement Type [Domain]
Renewable Support Arrangements
Nonsoftware Service, Support and Maintenance Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue Arrangement [Line Items]
Movement in Deferred Revenue [Roll Forward]
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period
Deferred Revenue
New support arrangements
Deferred Revenue, Additions
Recognition of support revenue
Deferred Revenue, Revenue Recognized
Balance end of period
Less: current portion
Non-current deferred revenue
Allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Convertible preferred stock, par value (in dollars per share)
Convertible Preferred Stock, Par value
Convertible Preferred Stock, Par value
Convertible preferred stock, shares authorized
Convertible Preferred Stock, Shares Reserved for Future Issuance
Convertible preferred stock, shares issued
Preferred Stock, Shares Issued
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized
Common Stock, Shares Authorized
Common stock, shares issued
Common Stock, Shares, Issued
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Treasury stock, shares
Treasury Stock, Shares
Balance Sheet Accounts
Supplemental Balance Sheet Disclosures [Text Block]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
U.S. Corporate Debt Securities
Domestic Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 Months, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
12 Months or More, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Fair Value, Total
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses
12 Months or More, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses
Unrealized Losses, Total
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
1999 Employee Stock Purchase Plan
Nineteen Ninety Nine Employee Stock Purchase Plan [Member]
Nineteen Ninety Nine Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value of options granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, 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 Revenue
Cost of Sales [Member]
Cost of Service Revenue
Cost of Service Revenue [Member]
Cost of Service Revenue [Member]
Research and Development
Research and Development Expense [Member]
Sales and Marketing
Selling and Marketing Expense [Member]
General and Administrative
General and Administrative Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation expense
Allocated Share-based Compensation Expense
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested stock outstanding, beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Cancelled (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Non-vested stock outstanding, ending balance (in shares)
Weighted-Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested stock outstanding, beginning of period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Cancelled (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Non-vested stock outstanding, end of period (in dollars per share)
Aggregate Fair Market Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value [Roll Forward]
Vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative [Table]
Derivative [Table]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Not Designated as Hedging Instrument
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative [Line Items]
Notional principal amount of forward foreign currency contracts
Notional Amount of Foreign Currency Derivatives
Maximum maturity on forward foreign currency contracts
Maximum Remaining Maturity of Foreign Currency Derivatives
Foreign currency transaction realized gains (losses)
Foreign Currency Transaction Gain (Loss), Realized
Schedule of Earnings Per Share, Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Recognized Share-based Compensation Expense
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Schedule of Share-based Compensation, Stock Options, Activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [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]
Statement of Other Comprehensive Income [Abstract]
Net (loss) income:
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in unrealized (loss) gain on investment
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Change in net foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Other comprehensive (loss) income
Other Comprehensive Income (Loss), Net of Tax
Total comprehensive (loss) income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Cash
Cash
Cash equivalents
Cash Equivalents, at Carrying Value
Total available-for-sale
Available-for-sale Securities, Current
Total cash and available for sale securities
Cash, Cash Equivalents, and Short-term Investments
Segment Reporting [Abstract]
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
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
Distributors
Distributors [Member]
Distributors [Member]
Deferred distributors revenue
Deferred cost of sales to distributors
Deferred Cost of Sales
Deferred Cost of Sales
Total deferred distributors revenue, net of cost of sales to distributors
Subsequent Events [Abstract]
Subsequent Events
Subsequent Events [Text Block]
Concentration Risk [Table]
Concentration Risk [Table]
Major Customers [Axis]
Major Customers [Axis]
Name of Major Customer [Domain]
Name of Major Customer [Domain]
Westcon
Westcon [Member]
Westcon [Member]
Tech Data
Tech Data [Member]
Tech Data [Member]
Scansource Inc.
Scansource Inc. [Member]
Scansource Inc. [Member]
Ericsson AB
Ericsson [Member]
Ericsson [Member]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Net Revenue
Sales Revenue, Net [Member]
Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Net (Loss) Income Per Share
Earnings Per Share [Text Block]
U.S. Government Agency Securities
US Government Agencies Debt Securities [Member]
U.S. Municipal Bonds
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities by Major Category of Investment [Axis]
Schedule of Available-for-sale Securities by Major Category of Investment [Axis]
Schedule of Available-for-sale Securities by Major Category of Investment [Axis]
Available-for-sale Securities by Major Category of Investment, Name [Domain]
Available-for-sale Securities by Major Category of Investment, Name [Domain]
Available-for-sale Securities by Major Category of Investment, Name [Domain]
Amortized Cost
Available-for-sale Securities, Amortized Cost Basis
Fair Value
Available-for-sale Securities, Fair Value Disclosure
Unrealized Holding Gains
Available-for-sale Securities, Gross Unrealized Gains
Unrealized Holding Losses
Available-for-sale Securities, Gross Unrealized Losses
Weighted stock options outstanding excluded from computation of earnings per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Risk-free interest rate (percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Volatility (percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Dividend yield (percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Segment, Geographical [Domain]
Total Americas
Segment, Geographical, Groups of Countries, Group Two [Member]
United States
UNITED STATES
Other
Segment, Geographical, Groups of Countries, Group One [Member]
EMEA
Segment, Geographical, Groups of Countries, Group Three [Member]
Segment, Geographical, Groups of Countries, Group Three [Member]
APAC
Segment, Geographical, Groups of Countries, Group Four [Member]
Segment, Geographical, Groups of Countries, Group Four [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Net Revenues
Foreign Exchange Forward Contracts
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Basis of Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Disclosure about Segments of an Enterprise and Geographic Areas
Segment Reporting Disclosure [Text Block]
Number of operating segments
Number of Operating Segments
Number of geographic regions
Number of Geographic Regions with Operating Segments
Number of Geographic Regions with Operating Segments
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Services
Services [Member]
Services [Member]
Product
Product [Member]
Deferred revenue, current and noncurrent
Deferred revenue
Deferred Revenue, Gross of Deferred Cost of Sales
Deferred Revenue, Gross of Deferred Cost of Sales
Deferred cost of sales
Deferred Revenue, Reductions Due to Cost of Sales
Deferred Revenue, Reductions Due to Cost of Sales
Non-current deferred revenue, net