Business Combinations
Business Combinations Policy [Policy Text Block]
Granted (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Revision of Prior Period [Axis]
Revision of Prior Period [Axis]
Document Type
Document Type
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Options outstanding, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
OTHER EXPENSE—NET
Other Nonoperating Income (Expense)
APAC
Asia Pacific and Japan [Member]
Asia Pacific and Japan [Member]
COMMITMENTS AND CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
INVESTMENTS IN PRIVATELY HELD COMPANIES
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Service [Member]
Service [Member]
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Other Investments
Equity Securities without Readily Determinable Fair Value [Policy Text Block]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
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
Deferred Contract Costs
Commissions Expense, Policy [Policy Text Block]
Level 3 [Member]
Fair Value, Inputs, Level 3 [Member]
Leases
Lessee, Leases [Policy Text Block]
Earnings Per Share [Line Items]
Earnings Per Share [Line Items]
Earnings Per Share [Line Items]
Fiscal Years:
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities and Equity [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Repurchase Program [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining terms (less than for minimum)
Operating Lease, Remaining Lease Term
Operating Lease, Remaining Lease Term
Deferred tax liability recorded
Deferred Income Tax Liabilities, Net
Security Exchange Name
Security Exchange Name
Number of primary stock incentive plans
Share-based Compensation Arrangement by Share-based Payment Award, Number of Primary Stock Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award, Number of Primary Stock Incentive Plans
OTHER INTANGIBLE ASSETS—NET
Intangible Assets, Net (Excluding Goodwill)
DEFINED CONTRIBUTION PLANS
Compensation and Employee Benefit Plans [Text Block]
Changes in operating assets and liabilities, net of assets acquired and liabilities assumed in business combinations:
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]
Sales and marketing [Member]
Selling and Marketing Expense [Member]
OPERATING INCOME
OPERATING INCOME
Operating Income (Loss)
Deferred revenue
Deferred Revenue, Current
Property and equipment by geographic region
Long-lived Assets by Geographic Areas [Table Text Block]
Options Outstanding, Weighted Average Exercise Price (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price
Total current liabilities
Total current liabilities
Liabilities, Current
Accounts Receivable
Accounts Receivable [Policy Text Block]
Short-term investments [Member]
Short Term Investments, Line Item [Member]
Short Term Investments, Line Item [Member]
Number of shares deregistered (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Deregistered
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Deregistered
Mutual Covenant-Not-to-Sue and Release Agreement
Mutual Covenant-Not-to-Sue Agreement Disclosure [Text Block]
Mutual Covenant-Not-to-Sue Agreement Disclosure [Text Block]
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Balance, beginning (in dollars per share)
Balance, ending (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
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
COMMITMENTS AND CONTINGENCIES (Note 13)
Commitments and Contingencies
Summary of Investments
Schedule of Amortized Costs, Unrealized Gains and Losses, and Fair Value of Available For Sale Securities [Table Text Block]
Schedule of Amortized Costs, Unrealized Gains and Losses, and Fair Value of Available For Sale Securities [Table Text Block]
Repurchase and retirement of common stock
Payments for Repurchase of Common Stock
ASSETS
Assets [Abstract]
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Furniture and fixtures [Member]
Furniture and Fixtures [Member]
Entity Address, State or Province
Entity Address, State or Province
Vested (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Tax at federal statutory tax rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Operating cash flows used for operating leases
Operating Lease, Payments
Accounts payable
Accounts Payable, Current
Proceeds from mutual covenant-not-to-sue agreement
Proceeds From Mutual Covenant-Not-to-Sue Agreement
Proceeds From Mutual Covenant-Not-to-Sue Agreement
Retained earnings (accumulated deficit)
Retained Earnings (Accumulated Deficit)
Foreign withholding taxes
Effective Income Tax Rate Reconciliation, Foreign Withholding Taxes, Amount
Effective Income Tax Rate Reconciliation, Foreign Withholding Taxes, Amount
Liability incurred in connection with business combination, amount recognized as compensation cost in consolidated statement of income
Business Combination, Compensation Expense, Liabilities Incurred
Business Combination, Compensation Expense, Liabilities Incurred
Operating lease ROU assets – non-current
Operating Lease, Right-of-Use Asset
Weighted-Average Useful Life (in Years)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Global Intangible Low-Taxed Income
Tax expense recorded in association with GILTI
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Global Intangible Low-Taxed Income, Amount
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Global Intangible Low-Taxed Income, Amount
2021
Lessee, Operating Lease, Liability, to be Paid, Year One
Balance - Beginning (in shares)
Balance - Ending (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
2024
Lessee, Operating Lease, Liability, to be Paid, Year Four
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]
Compensation cost not yet recognized
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Cash, Cash Equivalents and Available-for-sale Investments
Cash and Cash Equivalents and Available-for-Sale Investments [Policy Text Block]
Cash and Cash Equivalents and Available-for-Sale Investments [Policy Text Block]
Canada
CANADA
Customer [Axis]
Customer [Axis]
State
Current State and Local Tax Expense (Benefit)
Tax credit carryforwards
Tax Credit Carryforward, Amount
Exercise Price, minimum (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit
Income Taxes
Income Tax, Policy [Policy Text Block]
Total lease expense
Lease, Cost
U.S. government securities [Member]
US Treasury and Government [Member]
Total operating expenses
Operating Expenses
Building [Member]
Building [Member]
Options exercisable, Outstanding (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Common Stock, par value (dollars per share)
Common Stock, Par or Stated Value Per Share
OTHER LIABILITIES
Other Liabilities, Noncurrent
DEFERRED TAX ASSETS
Deferred tax asset recorded
Deferred Income Tax Assets, Net
Other
Payments for (Proceeds from) Other Investing Activities
Schedule of Estimated Useful Lives of Property and Equipment - net
Schedule of Estimated Useful Lives of Property, Plant and Equipment [Table Text Block]
Schedule of Estimated Useful Lives of Property, Plant and Equipment [Table Text Block]
Fair value of options vested
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value
Amount allocated to functional component
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Allocated Value
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Allocated Value
Stock-based compensation expense
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
One-time transition tax
Tax expense (benefit) related to transition tax
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Transition Tax on Accumulated Foreign Earnings, Amount
Inventory
Inventory
Inventory, Net
Total revenue
Revenue
Revenue from Contract with Customer, Excluding Assessed Tax
Basic shares:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Sales of investments
Proceeds from Sale of Available-for-sale Securities
Minimum stock ownership percent triggering early award expiration
Share-based Compensation Arrangement by Share-based Payment Award, Minimum Stock Ownership Percent Triggering Early Award Expiration
Share-based Compensation Arrangement by Share-based Payment Award, Minimum Stock Ownership Percent Triggering Early Award Expiration
Concentration (percent)
Concentration Risk, Percentage
Business Acquisition [Axis]
Business Acquisition [Axis]
Segment, Geographical [Domain]
Geographical [Domain]
Amortization of deferred contract costs
Capitalized Contract Cost, Amortization
Option contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Statement [Line Items]
Statement [Line Items]
Cumulative impairment adjustments to all equity securities without readily determinable fair values
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount
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]
Foreign
Deferred Foreign Income Tax Expense (Benefit)
Deferred tax assets
Increase (Decrease) in Deferred Income Taxes
Net income per share:
Earnings Per Share, Basic and Diluted [Abstract]
Computer equipment and software [Member]
Computer Equipment [Member]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
Entity Voluntary Filers
Entity Voluntary Filers
Statement [Table]
Statement [Table]
Warranties
Standard Product Warranty, Policy [Policy Text Block]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
ZoneFox Holdings Limited [Member]
ZoneFox Holdings Limited [Member]
ZoneFox Holdings Limited [Member]
Additional shares authorized
Stock Repurchase Program, Authorized Amount, Approved Increase
Stock Repurchase Program, Authorized Amount, Approved Increase
General business credit carryforward
Deferred Tax Assets, Tax Credit Carryforwards, General Business
Business Combinations [Abstract]
Business Combinations [Abstract]
$76.22-$145.62 [member]
Price Range Four [Member]
Price Range Four [Member]
Entity Small Business
Entity Small Business
Latin America
Latin America [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Gain on intellectual property matter
Gain on IP matter
Gain (Loss) From Mutual Covenant-Not-To-Sue Agreement, Right To Use Existing Intellectual Property
Gain (Loss) From Mutual Covenant-Not-To-Sue Agreement, Right To Use Existing Intellectual Property
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Software Products [Member]
Software, Product Warranty [Member]
Software, Product Warranty
Options exercisable, Weighted average remaining contractual life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Proceeds from issuance of common stock
Proceeds from Issuance of Common Stock
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Net, by Type [Abstract]
Amendment Flag
Amendment Flag
Schedule of Earnings Per Share, Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
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]
Concentration of Credit Risk
Concentration Risk [Policy Text Block]
Concentration Risk [Policy Text Block]
Weighted-average shares outstanding:
Diluted shares:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Accrued interest and penalties related to uncertain tax benefits
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Dividend distribution
Effective Income Tax Rate Reconciliation, Canadian Deemed Dividend Distribution
Effective Income Tax Rate Reconciliation, Canadian Deemed Dividend Distribution
Number of shares authorized (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
LEASES
Lessee, Finance Leases [Text Block]
Research and Development Costs
Research and Development Expense, Policy [Policy Text Block]
Evaluation units [Member]
Evaluation Units [Member]
Evaluation units [Member]
Remaining shares available for grant under the plans (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Entity Central Index Key
Entity Central Index Key
Commercial paper [Member]
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Proceeds from release of indemnity escrow
Proceeds From Release Of Indemnity Escrow Related To Business Combination
Proceeds From Release Of Indemnity Escrow Related To Business Combination
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Number of reporting units
Number of Reporting Units
Schedule of Warranties [Table]
Schedule of Warranties [Table]
Schedule of Warranties [Table]
Financial Instruments [Domain]
Financial Instruments [Domain]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Due within one to three years
Available-for-sale Securities, Debt Maturities, after One Year, Fair Value
This item represents the fair value of debt securities which are expected to mature after one year from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities.
Estimate for sales return reserve
Contract with Customer, Refund Liability, Current
Schedule of Finite-Lived Intangible Assets by Major Class
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Finance lease term
Lessee, Finance Lease, Term of Contract
12 Months or Greater, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Liability for purchase of property and equipment
Capital Expenditures Incurred but Not yet Paid
Statement, Geographical [Axis]
Geographical [Axis]
Subsequent Event
Subsequent Events [Text Block]
Valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
2009 Equity Incentive Plan (Amended Plan) [Member]
Stock Plan, 2009 [Member]
Stock Plan, 2009 [Member]
Panopta Holdings LLC [Member]
Panopta Holdings LLC [Member]
Panopta Holdings LLC
Amortized Cost
Debt Securities, Available-for-sale, Amortized Cost
Renewal terms (up to)
Lessee, Operating Lease, Renewal Term
12 Months or Greater, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Unrealized Gains
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
INCOME TAX LIABILITIES
Accrued Income Taxes, Noncurrent
Contingent Liabilities
Commitments and Contingencies, Policy [Policy Text Block]
Issuance of common stock in connection with equity incentive plans - net of tax withholding (in shares)
Stock Issued During Period, Shares, Equity Incentive Plans
Stock Issued During Period, Shares, Equity Incentive Plans
Property, Plant and Equipment by Type [Axis]
Long-Lived Tangible Asset [Axis]
ESPP [Member]
Employee Stock [Member]
Beginning balance
Ending balance
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Income Statement Location [Axis]
Income Statement Location [Axis]
Options Outstanding, Weighted Average Remaining Contractual Life (in years)
Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Thereafter
Purchase Obligation, To Be Paid, After Year Two
Purchase Obligation, To Be Paid, After Year Two
Income Statement Location [Domain]
Income Statement Location [Domain]
Research and development credit
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
2022
Lessee, Operating Lease, Liability, to be Paid, Year Two
State and Local Jurisdiction [Member]
State and Local Jurisdiction [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Federal
Current Federal Tax Expense (Benefit)
Amortization expense
Amortization of Intangible Assets
Deferred revenue
Deferred Tax Assets, Deferred Income
Components of Lease Expense and Supplemental Cash Flow Information
Lease, Cost [Table Text Block]
Schedule of Shares Reserved for Future Issuance
Schedule of Shares Reserved for Future Issuance [Table Text Block]
Schedule of Shares Reserved for Future Issuance [Table Text Block]
2023
Lessee, Operating Lease, Liability, to be Paid, Year Three
OTHER ASSETS
Other Assets, Noncurrent
Plan Name [Axis]
Plan Name [Axis]
SEGMENT INFORMATION
Segment Reporting Disclosure [Text Block]
Concentration Risk [Table]
Concentration Risk [Table]
TOTAL ASSETS
TOTAL ASSETS
Assets
Exercise Price Range [Domain]
Exercise Price Range [Domain]
Balance, beginning (shares)
Balance, ending (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Title of 12(b) Security
Title of 12(b) Security
Total
Finite-Lived Intangible Assets, Net
Weighted-average fair value per share granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Net unrealized gain on investments - net of tax
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Other Intangible Assets
Intangible Assets, Finite-Lived, Policy [Policy Text Block]
Long-term investments, minimum original maturity
Investments, Classification as Long-term, Minimum Maturity
Investments, Classification as Long-term, Minimum Maturity
Contractual term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Contractual Term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Contractual Term
As Previously Reported [Member]
Previously Reported [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Schedule of Share-based Compensation, Stock Options, Activity, Additional Information
Schedule of Share-based Compensation, Stock Options, Activity, Additional Information [Table Text Block]
Schedule of Share-based Compensation, Stock Options, Activity, Additional Information
Depreciation and amortization
Depreciation, Depletion and Amortization
Stock-based compensation expense
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount
Options Exercisable, Weighted Average Exercise Price (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price
Schedule of Components of Income Tax Expense (Benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Summary of Inventory Purchase Commitments
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
Accrued interest on available-for-sale securities
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss
Net increase of gross unrecognized tax benefits
Unrecognized Tax Benefits, Period Increase (Decrease)
Product and Service [Axis]
Product and Service [Axis]
Total liabilities
Total liabilities
Liabilities
Liability for uncertain tax positions
Liability for Uncertainty in Income Taxes, Noncurrent
Income Tax Contingency [Line Items]
Income Tax Contingency [Line Items]
Periodic purchase limit (shares)
Employee Stock Purchase Plan, Periodic Purchase Limit
Employee Stock Purchase Plan, Periodic Purchase Limit
Compensation cost not yet recognized period of recognition
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Cash paid to settle liability incurred for repurchase of common stock
Repurchase of Common Stock, Settlement of Liabilities Incurred
Repurchase of Common Stock, Settlement of Liabilities Incurred
Volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Less imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Options vested and expected to vest, Weighted average remaining contractual life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Purchase price of common stock as percentage of lower of fair market value of common stock on first day of offering period or last day of purchase period
Purchase Price of Common Stock As Percentage Of Lower Of Fair Market Value Of Common Stock On First Day Of Offering Period Or Last Day Of Purchase Period
Purchase Price of Common Stock As Percentage Of Lower Of Fair Market Value Of Common Stock On First Day Of Offering Period Or Last Day Of Purchase Period
Revenue recognized that was previously included in deferred revenue in prior year
Contract with Customer, Liability, Revenue Recognized
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Inventory
Increase (Decrease) in Inventories
Cost of service revenue [Member]
Cost of Services [Member]
Cost of Services [Member]
Matching contributions to the RRSP and 401(k) Plans
Defined Contribution Plan, Employer Matching Contribution, Amount
Defined Contribution Plan, Employer Matching Contribution, Amount
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Accounts payable
Increase (Decrease) in Accounts Payable
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Raw materials
Inventory, Raw Materials, Net of Reserves
DEFERRED REVENUE
Deferred Revenue, Noncurrent
Stock Options and Restricted Stock Units, Outstanding [Member]
Stock Options and Restricted Stock Units, Outstanding [Member]
Stock Options and Restricted Stock Units, Outstanding [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Square feet of property purchased
Property, Plant And Equipment, Additions, Area Of Property Purchased
Property, Plant And Equipment, Additions, Area Of Property Purchased
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
EnSilo Ltd. [Member]
EnSilo Ltd. [Member]
EnSilo Ltd. [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Number of properties purchased
Property, Plant And Equipment, Additions, Number Of Properties Purchased
Property, Plant And Equipment, Additions, Number Of Properties Purchased
Accrued liabilities
Increase (Decrease) in Accrued Liabilities
California [Member]
State Jurisdiction, California [Member]
State Jurisdiction, California [Member]
Amount recorded in accrued liabilities and other liabilities in condensed consolidated balance sheet
Mutual Covenant Not-to-Sue Agreement, Patent Claims, Liability
Mutual Covenant Not-to-Sue Agreement, Patent Claims, Liability
Adjustments to reconcile net income to net cash provided by operating activities:
Changes in operating assets and liabilities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Balance, shares
Balance, shares
Shares, Issued
Cash paid for amounts included in the measurement of lease liabilities
Cash Flow, Lessee [Abstract]
Cash Flow, Lessee [Abstract]
Software Development Costs
Software to be Sold, Leased, or Otherwise Marketed, Policy [Policy Text Block]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
REVENUE:
Revenue from Contract with Customer [Abstract]
Commissions Expense [Table]
Commissions Expense [Table]
Commissions Expense [Table]
Financial Instruments and Fair Value
Fair Value of Financial Instruments, Policy [Policy Text Block]
Hardware Products [Member]
Hardware, Product Warranty [Member]
Hardware, Product Warranty [Member]
Common Stock, shares outstanding
Common Stock, Shares, Outstanding
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Variable lease expense
Variable Lease, Cost
Reserves for Sales Returns and Allowance for Doubtful Accounts [Member]
Allowance for Doubtful Accounts & Reserve for Sales Returns [Member]
Allowance for Doubtful Accounts & Reserve for Sales Returns [Member]
State taxes—net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Options Exercisable, Number Exercisable (in shares)
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable
Research and development
Research and Development Expense
Subsequent Event [Member]
Subsequent Event [Member]
Balance - Beginning (in dollars per share)
Balance - Ending (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Accounting Changes and Error Corrections [Abstract]
Federal [Member]
Domestic Tax Authority [Member]
Payments made in connection with business combinations, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Common Stock, shares authorized
Common Stock, Shares Authorized
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Concentration Risk by Type [Axis]
Concentration Risk Type [Axis]
Revenue from external customers by geographic region
Revenue from External Customers by Geographic Areas [Table Text Block]
RSUs, stock options, and ESPP (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Total property and equipment
Property, Plant and Equipment, Gross
Federal
Deferred Federal Income Tax Expense (Benefit)
Total, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]
Revenue Recognition
Revenue [Policy Text Block]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
Liability incurred in connection with business combination
Liability incurred in connection with business combination, amount included in preliminary purchase price
Business Combination, Consideration Transferred, Liabilities Incurred
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Foreign-Derived Intangible Income
Foreign-derived intangible income deduction
Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act, Deduction, Foreign-Derived Intangible Income, Amount
Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act, Deduction, Foreign-Derived Intangible Income, Amount
Accrued payroll and compensation
Increase (Decrease) in Employee Related Liabilities
Fair Value [Member]
Estimate of Fair Value Measurement [Member]
Income Statement [Abstract]
Income Statement [Abstract]
Weighted-average price per share issued (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Issued, Weighted Average Price per Share
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Issued, Weighted Average Price per Share
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Member]
Investments Classified by Contractual Maturity Date
Investments Classified by Contractual Maturity Date [Table Text Block]
Deferred contract costs
Increase (Decrease) in Deferred Charges
Operating lease liabilities – non-current
Operating Lease, Liability, Noncurrent
2024
Finite-Lived Intangible Asset, Expected Amortization, Year Four
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Mutual Covenant-Not-to-Sue Agreement [Abstract]
Mutual Covenant-Not-to-Sue Agreement [Abstract]
Other Americas
Other Americas [Member]
Other Americas [Member]
Annual purchase limit
Employee Stock Purchase Plan, Annual Purchase Limit
Employee Stock Purchase Plan, Annual Purchase Limit
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Supplemental Balance Sheet Information
Assets And Liabilities, Lessee [Table Text Block]
Assets And Liabilities, Lessee [Table Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
CURRENT ASSETS:
Assets, Current [Abstract]
Goodwill expected to be deductible for tax purposes
Business Acquisition, Goodwill, Expected Tax Deductible Amount
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Schedule of Share-based Compensation, Shares Withheld for Taxes
Schedule of Share-based Compensation, Shares Withheld for Taxes [Table Text Block]
Schedule of Share-based Compensation, Shares Withheld for Taxes [Table Text Block]
Schedule of Earnings Per Share [Table]
Schedule of Earnings Per Share [Table]
Schedule of Earnings Per Share [Table]
Inventory purchase commitments
Purchase Obligation, Fiscal Year Maturity [Abstract]
Payments of debt assumed in connection with business combinations
Repayments of Assumed Debt
Stock repurchase program, unused balance
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Schedule of Employee Service Share based Compensation Allocation of Recognized Period Costs by Award Type
Schedule of Employee Service Share based Compensation Allocation of Recognized Period Costs by Award Type [Table Text Block]
Schedule of Employee Service Share based Compensation Allocation of Recognized Period Costs by Award Type [Table Text Block]
Exclusive Networks Group [Member]
Exclusive Networks Group [Member]
Exclusive Networks Group [Member]
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Dividend rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
DEFERRED CONTRACT COSTS
Capitalized Contract Cost, Net
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Schedule of Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Cost of product revenue [Member]
Cost of Goods Sold [Member]
Cost of Goods Sold [Member]
Income Tax Liabilities - Non-current [Member]
Income Tax Liabilities - Non-current [Member]
Income Tax Liabilities - Non-current [Member]
Cash payments to purchase certain property in Union City, California
Payments to Acquire Property, Plant, and Equipment
City Area Code
City Area Code
OPAQ Networks, Inc (OPAQ) [Member]
OPAQ Networks, Inc (OPAQ) [Member]
OPAQ Networks, Inc (OPAQ)
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Document Period End Date
Document Period End Date
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred contract costs
Deferred Tax Liabilities, Deferred Expense
GOODWILL AND OTHER INTANGIBLE ASSETS - Net
Goodwill and Intangible Assets Disclosure [Text Block]
IMMATERIAL CORRECTION OF PRIOR PERIOD FINANCIAL STATEMENTS
Accounting Changes and Error Corrections [Text Block]
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Abstract]
Shares reserved for future issuances (in shares)
Common Stock, Capital Shares Reserved for Future Issuance
Stock repurchase program, authorized amount
Stock Repurchase Program, Authorized Amount
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
INCOME BEFORE INCOME TAXES
INCOME BEFORE INCOME TAXES
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Impairment of Long-Lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Segment managers responsible for operations (in segment managers)
Number of Segment Managers Responsible for Operations
Number of Segment Managers Responsible for Operations
Inventory
Schedule of Inventory, Current [Table Text Block]
Stock-based compensation
Share-based Payment Arrangement, Noncash Expense
Purchases of property and equipment
Payments to Acquire Productive Assets
Individual Owning Less Than 10 Percent of Stock [Member]
Individual Owning Less Than 10 Percent of Stock [Member]
Individual Owning Less Than 10 Percent of Stock [Member]
Depreciation and amortization
Deferred Tax Assets, Property, Plant and Equipment
Other
Proceeds from (Payments for) Other Financing Activities
Taxes paid related to net share settlement of equity awards
Amount withheld for taxes
Payment, Tax Withholding, Share-based Payment Arrangement
Basis of Presentation and Preparation
Presentation and Preparation of Consolidated Financial Statements [Policy Text Block]
Presentation and Preparation of Consolidated Financial Statements [Policy Text Block]
Cover [Abstract]
Cover [Abstract]
Additions due to business combinations
Goodwill, Acquired During Period
Maximum contribution percentage of each employee's eligible earnings, Percent
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Repurchase and retirement of common stock (in shares)
Stock repurchased in the period, shares
Stock Repurchased and Retired During Period, Shares
Gross decreases for tax positions related to the current year
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions
Schedule of Income before Income Tax, Domestic and Foreign
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Property and equipment, useful life
Property, Plant and Equipment, Useful Life
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Deferred contract costs
Increase (Decrease) in Contract with Customer, Liability
LEASES
Lessee, Operating Leases [Text Block]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position [Abstract]
Share-based Payment Arrangement, Option, Exercise Price Range [Table]
Share-based Payment Arrangement, Option, Exercise Price Range [Table]
Amortization of investment premiums (discounts)
Accretion (Amortization) of Discounts and Premiums, Investments
Net deferred tax assets
Deferred Tax Assets, Net
Customer Relationships [Member]
Customer Relationships [Member]
Concentration Risk by Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Total cost of revenue
Cost of Goods and Services Sold
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Fair Value
Fair Value
Investments, Fair Value Disclosure
Debt Securities, Available-for-sale
EMEA
Europe, Middle East and Africa [Member]
Europe, Middle East and Africa [Member]
Initial term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Initial Term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Initial Term
Equity Components [Axis]
Equity Components [Axis]
Finished goods
Inventory, Finished Goods, Net of Reserves
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement [Abstract]
Total deferred tax assets
Deferred Tax Assets, Gross
Minimum [Member]
Minimum [Member]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Land [Member]
Land [Member]
Operating lease liabilities – current
Operating Lease, Liability, Current
Revenue from External Customer [Line Items]
Revenue from External Customer [Line Items]
Finance lease liabilities arising from obtaining right-of-use assets
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Forfeited (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
Matching contribution on employee contributions, Percent
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
Entity Interactive Data Current
Entity Interactive Data Current
United States
UNITED STATES
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Liability incurred for repurchase of common stock
Repurchase of Common Stock, Liabilities Incurred
Repurchase of Common Stock, Liabilities Incurred
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Total
Inventory purchase commitments
Purchase Obligation
Accounts Receivable [Member]
Accounts Receivable [Member]
Maturities of investments
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale
Stock-Based Compensation
Share-based Payment Arrangement [Policy Text Block]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Customer [Domain]
Customer [Domain]
Foreign
Current Foreign Tax Expense (Benefit)
Cumulative effect adjustment from adoption of Topic 606 / ASU 2018 - 02 [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Additional paid-in capital
Additional Paid in Capital, Common Stock
Entity Registrant Name
Entity Registrant Name
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Impairment loss
Capitalized Contract Cost, Impairment Loss
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Weighted average discount rate – operating leases
Operating Lease, Weighted Average Discount Rate, Percent
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Advertising Expense
Advertising Cost [Policy Text Block]
Weighted- Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Number of reportable segments (in reportable segments)
Number of Reportable Segments
Amount of sales return reserve reclassified from accounts receivable to accrued liabilities
Customer Refund Liability, Current
Security Subscription [Member]
Security Subscription [Member]
Security Subscription [Member]
Significant change in unrecognized tax benefits is reasonably possible, amount of decrease in next 12 months
Decrease in Unrecognized Tax Benefits is Reasonably Possible
$48.83-$72.75 [Member]
Price Range Three [Member]
Price Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Axis]
Exercise Price Range [Axis]
Charged to expenses, net of deductions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Business activity (in business activities)
Number of Business Activities
Number of business activities
Research and development [Member]
Research and Development Expense [Member]
Effect of potentially dilutive securities:
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Goodwill impairment
Goodwill, Impairment Loss
Accounts receivable—Net of allowance for credit losses of $2.5 million at December 31, 2020 and net of allowance for doubtful accounts of $1.2 million at December 31, 2019
Accounts Receivable, after Allowance for Credit Loss, Current
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
Additional proceeds if extended
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Extension Option, Additional Proceeds
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Extension Option, Additional Proceeds
CyberSponse, Inc. [Member]
CyberSponse, Inc. [Member]
CyberSponse, Inc. [Member]
Unrealized Losses
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Foreign Currency and Transaction Gains and Losses
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Deferred tax assets, net of valuation allowance
Deferred Tax Assets, Net of Valuation Allowance
Amount representing the right to utilize future patents
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Right to Utilize Future Patents, Liability
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Right to Utilize Future Patents, Liability
GOODWILL
Goodwill
Balance - beginning of period
Balance - end of period
Goodwill
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale [Line Items]
Due within one year
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One
Short-term investments, minimum original maturity
Investments, Classification as Short-term, Minimum Original Maturity
Investments, Classification as Short-term, Minimum Original Maturity
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Document Transition Report
Document Transition Report
Deferred Compensation Arrangement with Individual, Share-based Payments, by Title of Individual [Axis]
Title of Individual [Axis]
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]
Deferred:
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income tax benefit associated with stock-based compensation
Share-based Payment Arrangement, Exercise of Option, Tax Benefit
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Net operating loss carryforward
Deferred Tax Assets, Operating Loss Carryforwards
Repurchase and retirement of common stock
Stock repurchased in the period, value
Stock Repurchased and Retired During Period, Value
Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Building and building improvements [Member]
Building and Building Improvements [Member]
Foreign tax credit
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount
Schedule of Changes in Carrying Value of Goodwill
Schedule of Goodwill [Table Text Block]
Current:
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
General and administrative [Member]
General and Administrative Expense [Member]
Total Assets, Fair Value Disclosure
Assets, Fair Value Disclosure
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Deferred revenue
Contract with Customer, Liability, Current
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Reserves and accruals
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals
Accounting Standards Update [Extensible List]
Accounting Standards Update [Extensible List]
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Schedule of Effects of Corrections to Prior Period Financial Statements
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption [Axis]
Customer Concentration Risk [Member]
Customer Concentration Risk [Member]
Options vested and expected to vest, Outstanding (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Diluted (in shares)
Weighted-average shares used to compute diluted net income per share (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Deferred tax assets:
Components of Deferred Tax Assets [Abstract]
Basic (in dollars per share)
Earnings Per Share, Basic
Unrecognized tax benefits that would favorably affect effective tax rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Number of operating segments (in operating segments)
Number of Operating Segments
Expected term in years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Entity File Number
Entity File Number
Forfeited (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Weighted average remaining lease term in years – operating leases
Operating Lease, Weighted Average Remaining Lease Term
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]
Sales and marketing
Selling and Marketing Expense
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Short-term investments, maximum original maturity
Investments, Classification as Short-term, Maximum Original Maturity
Investments, Classification as Short-term, Maximum Original Maturity
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Comprehensive Income
Comprehensive Income Loss [Policy Text Block]
Comprehensive Income Loss [Policy Text Block]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
Amount held in indemnity escrow
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow
Additional minimum lease payments relating to operating office space lease signed but not yet commenced
Operating Lease, Lease Not yet Commenced, Expense
Operating Lease, Lease Not yet Commenced, Expense
Remaining performance obligation
Revenue, Remaining Performance Obligation, Amount
Total stock-based compensation expense
Share-based Payment Arrangement, Expense
Leasehold improvements and tooling [Member]
Leaseholds and Leasehold Improvements [Member]
Unrecognized tax benefits, beginning of year
Unrecognized tax benefits, end of year
Unrecognized Tax Benefits
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Common stock, $0.001 par value—300 shares authorized; 162.5 shares and 171.7 shares issued and outstanding at December 31, 2020 and 2019, respectively
Common Stock, Value, Issued
LONG-TERM INVESTMENTS
Long-term Investments
Percent of market price for non-statutory options
Share-based Compensation Arrangement by Share-based Payment Award, Minimum Exercise Price as Percent of Fair Value On Grant Date
Share-based Compensation Arrangement by Share-based Payment Award, Minimum Exercise Price as Percent of Fair Value On Grant Date
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Warranty length
Warranty Length
Warranty Length
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Annual Report
Document Annual Report
$20.76-$24.51 [Member]
Price Range One [Member]
Price Range One [Member]
2022
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Less: tax provision related to change in unrealized gains (losses) on investments
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Options exercisable, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Gross decreases for tax positions related to prior year audit settlements
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Entity Current Reporting Status
Entity Current Reporting Status
Retirement Benefits [Abstract]
Retirement Benefits [Abstract]
Subsequent Event [Table]
Subsequent Event [Table]
Inventory, Net [Abstract]
Inventory, Net [Abstract]
Granted (in dollars per share)
Weighted-average fair value per share 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
Inventory Disclosure [Abstract]
Inventory Disclosure [Abstract]
2016 Share Repurchase Program [Member]
Share Repurchase Program [Member]
Share Repurchase Program [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Common Stock, shares issued
Common Stock, Shares, Issued
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Revenue from External Customers by Products and Services [Table]
Revenue from External Customers by Products and Services [Table]
Award expiration period
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period
Options Outstanding, Number Outstanding (in shares)
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding
Total operating lease liabilities
Total
Operating Lease, Liability
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Less Than 12 Months, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Accounts receivable—net
Increase (Decrease) in Accounts Receivable
Statement of Comprehensive Income [Abstract]
Total stockholders’ equity
Balance
Balance
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Foreign income taxed at different rates
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Rent expense
Operating Leases, Rent Expense, Net
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities and Equity
Accumulated other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax
INCOME TAXES
Income Tax Disclosure [Text Block]
Entity Address, City or Town
Entity Address, City or Town
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Accrued payroll and compensation
Employee-related Liabilities, Current
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Restricted Stock Units (RSUs) [Member]
Restricted Stock Units (RSUs) [Member]
Gross decreases for tax positions related to expiration of statute of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Reserved for Future Option, Restricted Stock Unit and Other Equity Award Grants [Member]
Reserved for Future Option, Restricted Stock Unit and Other Equity Award Grants [Member]
Reserved for Future Option, Restricted Stock Unit and Other Equity Award Grants [Member]
Operating lease expense
Operating Lease, Cost
Maximum employee contribution rate (percent)
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate
2025
Lessee, Operating Lease, Liability, to be Paid, Year Five
Liabilities assumed
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Purchase price
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
General and administrative
General and Administrative Expense
Deferred tax liabilities:
Deferred Tax Liabilities, Gross [Abstract]
Stock Options, Nonqualifying [Member]
Stock Options, Nonqualifying [Member]
Stock Options, Nonqualifying [Member]
Employee [Member]
Employee [Member]
Employee [Member]
Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis]
Financial Instrument [Axis]
Extension term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Extension Option, Term
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Extension Option, Term
Anti-dilutive securities (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Total current
Current Income Tax Expense (Benefit)
Other
Other Noncash Income (Expense)
Product [Member]
Product [Member]
Short-term lease expense
Short-term Lease, Cost
Revenue recognition period (in years)
Revenue Recognition Period
Revenue Recognition Period
Gross increases for tax positions related to the prior year
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Gross increases for tax positions related to the current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Useful life of finite-lived intangible assets
Finite-Lived Intangible Asset, Useful Life
Equity Component [Domain]
Equity Component [Domain]
Ingram Micro [Member]
Ingram Micro [Member]
Ingram Micro [Member]
Operating lease ROU assets
Deferred Tax Liabilities, Leasing Arrangements
Less: Valuation allowance
Deferred Tax Assets, Valuation Allowance
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Commissions Expense [Line Items]
Commissions Expense [Line Items]
[Line Items] for Commissions Expense [Table]
Total gross profit
Gross Profit
Gross Profit
PROPERTY AND EQUIPMENT—NET
Property and equipment—net
Property and equipment - net
Property, Plant and Equipment, Net
2023
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Construction-in-progress [Member]
Construction in Progress [Member]
Entity Tax Identification Number
Entity Tax Identification Number
Deferred Revenue
Revenue from Contract with Customer [Policy Text Block]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Operating lease liabilities
Deferred Tax Assets, Operating Lease Liabilities
Deferred Tax Assets, Operating Lease Liabilities
Issuance of common stock in connection with equity incentive plans - net of tax withholding
Stock Issued During Period, Value, Equity Incentive Plans, Net of Taxes Withheld
Stock Issued During Period, Value, Equity Incentive Plans, Net of Taxes Withheld
STOCKHOLDERS' EQUITY
Share-based Payment Arrangement [Text Block]
NET INCOME
Net income
NET INCOME
Net Income (Loss) Attributable to Parent
Directors and Other Service Providers [Member]
Directors and Other Service Providers [Member]
Directors and Other Service Providers [Member]
Sales Commissions [Member]
Sales Commissions [Member]
Sales Commissions [Member]
Recognized gain on sale of equity securities of privately held company
Equity Securities Without Readily Determinable Fair Value, Realized Gain (Loss)
Equity Securities Without Readily Determinable Fair Value, Realized Gain (Loss)
INVENTORY
Inventory Disclosure [Text Block]
Leases [Abstract]
Leases [Abstract]
Amount held in indemnity escrow, expected to be held for 36 months
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow, Portion Expected to be Held for Thirty-Six Months After Closing Date
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow, Portion Expected to be Held for Thirty-Six Months After Closing Date
Total current assets
Assets, Current
Current Fiscal Year End Date
Current Fiscal Year End Date
OPERATING EXPENSES:
Operating Expenses [Abstract]
Net operating loss carryforwards
Operating Loss Carryforwards
Net income per share (Note 10):
Earnings Per Share [Abstract]
Schedule of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Invoice payable period (no more than)
Revenue from Contract with Customers, General Invoice Payable Period
Revenue from Contract with Customers, General Invoice Payable Period
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Adjustment due to adoption of Topic 606
SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment
Total, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Income Tax Liabilities
Accrued Income Taxes, Noncurrent [Member]
Accrued Income Taxes, Noncurrent
STOCKHOLDERS’ EQUITY:
Stockholders' Equity Attributable to Parent [Abstract]
Identifiable intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Developed Technologies [Member]
Developed Technology Rights [Member]
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Document Fiscal Period Focus
Document Fiscal Period Focus
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
Lease not yet commenced, approximate term
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract
Certificates of deposit and term deposits [Member]
Certificates of Deposit [Member]
Proceeds from sale of equity securities of privately held company
Proceeds from Sale of Equity Securities Without Readily Determinable Fair Value
Proceeds from Sale of Equity Securities Without Readily Determinable Fair Value
DEFERRED REVENUE
Contract with Customer, Liability, Noncurrent
Maximum stock ownership percent triggering early award expiration
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Stock Ownership Percent For Options Granted to Individuals
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Stock Ownership Percent For Options Granted to Individuals
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Supplemental Cash Flow Information [Abstract]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Shares issued under the ESPP (in shares)
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Entity Filer Category
Entity Filer Category
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
Common Stock [Member]
Common Stock [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Product and Service [Domain]
Product and Service [Domain]
Other net assets acquired
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets (Liabilities), Net
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets (Liabilities), Net
Property, Plant and Equipment, Type [Domain]
Long-Lived Tangible Asset [Domain]
GROSS PROFIT:
Gross Profit [Abstract]
Schedule of Deferred Taxes [Table]
Schedule of Deferred Taxes [Table]
Schedule of Deferred Taxes [Table]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Property, Plant and Equipment - Net
Property, Plant and Equipment [Table Text Block]
Less Than 12 Months, Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Sales Revenue [Member]
Sales Revenue [Member]
Sales Revenue [Member]
Other comprehensive income (loss):
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract]
Bradford Networks, Inc. [Member]
Bradford Networks, Inc. [Member]
Bradford Networks, Inc. [Member]
Warranties [Line Items]
Warranties [Line Items]
Warranties [Line Items]
Gross
Finite-Lived Intangible Assets, Gross
Revision of Prior Period [Domain]
Revision of Prior Period [Domain]
Finite-Lived Intangible Assets, Net [Abstract]
Finite-Lived Intangible Assets, Net [Abstract]
Performance obligation expected recognition period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Share-based Payment Arrangement [Member]
Share-based Payment Arrangement [Member]
Less: accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions And Allocation of Recognized Period Costs [Table Text Block]
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.
Options vested and expected to vest, Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
BUSINESS COMBINATIONS
Business Combination Disclosure [Text Block]
Change in unrealized gains (losses) on investments
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Maturities of Operating Lease Liabilities
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Stock Options [Member]
Share-based Payment Arrangement, Option [Member]
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Money market funds [Member]
Money Market Funds, Excluding Commercial Paper [Member]
Money Market Funds, Excluding Commercial Paper [Member]
Basic (in shares)
Weighted-average common shares outstanding-basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Book-to-Tax Basis differences
Benefit to tax provision resulting from basis difference
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Tax Book Basis Difference, Amount
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Tax Book Basis Difference, Amount
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Financial Instruments and Fair Value [Abstract]
Financial Instruments and Fair Value [Abstract]
Financial Instruments and Fair Value [Abstract]
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Other liabilities
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities
State
Deferred State and Local Income Tax Expense (Benefit)
Cash equivalents [Member]
Cash Equivalents, Line Item [Member]
Cash Equivalents, Line Item [Member]
Reported as [Member]
Reported Value Measurement [Member]
Domestic
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Plan Name [Domain]
Plan Name [Domain]
Entity Well Known Seasoned Issuer
Entity Well-known Seasoned Issuer
REVENUE RECOGNITION
Revenue from Contract with Customer [Text Block]
Liability incurred in connection with business combination
Business Combination, Liabilities Incurred
Business Combination, Liabilities Incurred
Investments in equity securities of privately-held companies
Equity Securities without Readily Determinable Fair Value, Amount
Operating lease liabilities arising from obtaining right-of-use assets
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
2021
Finite-Lived Intangible Asset, Expected Amortization, Year One
Foreign currency transaction losses
Foreign Currency Transaction Gain (Loss), before Tax
Inventory
Inventory, Policy [Policy Text Block]
PROVISION FOR (BENEFIT FROM) INCOME TAXES
PROVISION FOR INCOME TAXES
Provision for (benefit from) income taxes
Income Tax Expense (Benefit)
Transfers of evaluation units from inventory to property and equipment
Transfers of Evaluation Units from Inventory to Property and Equipment
Transfers of Evaluation Units from Inventory to Property and Equipment
Cash paid for income taxes—net
Income Taxes Paid, Net
CASH AND CASH EQUIVALENTS—Beginning of year
CASH AND CASH EQUIVALENTS—End of year
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Property and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Title of Individual with Relationship to Entity [Domain]
Title of Individual [Domain]
Accrued liabilities
Accrued Liabilities, Current
Diluted (in dollars per share)
Diluted (in dollars per share)
Earnings Per Share, Diluted
Local Phone Number
Local Phone Number
Schedule of Aggregate Changes in Unrecognized Tax Benefits
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Americas [Member]
Americas [Member]
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Domain]
Intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Exercise Price, maximum (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit
Non-cash impairment charge
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount
INTEREST INCOME—NET
Investment Income, Net
Schedule of Share-based Payment Award Employee Stock Purchase Plan Additional Information
Schedule of Share based Payment Award Employee Stock Purchase Plan Additional Information [Table Text Block]
Schedule of Share based Payment Award Employee Stock Purchase Plan Additional Information [Table Text Block]
Depreciation expense
Depreciation
Entity Address, Address Line One
Entity Address, Address Line One
Gross decreases for tax positions related to prior year
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Investments, All Other Investments [Abstract]
Investments, All Other Investments [Abstract]
Long-term investments [Member]
Long Term Investments, Line Item [Member]
Long Term Investments, Line Item [Member]
Other assets
Increase (Decrease) in Other Operating Assets
Entity Emerging Growth Company
Entity Emerging Growth Company
Schedule II Valuation and Qualifying Accounts
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Cash consideration that may be paid as an earn-out subject to satisfaction of certain performance conditions
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Schedule of Finite-Lived Intangible Assets by Major Class [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Total deferred
Deferred Income Tax Expense (Benefit)
$26.49-$39.49 [Member]
Price Range Two [Member]
Price Range Two [Member]
Award Type [Axis]
Award Type [Axis]
Weighted-Average Grant Date Fair Value per Share
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Corrections [Member]
Revision of Prior Period, Error Correction, Adjustment [Member]
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Individual Owning 10 Percent or More of Stock [Member]
Individual Owning 10 Percent or More of Stock [Member]
Individual Owning 10 Percent or More of Stock [Member]
Maximum [Member]
Maximum [Member]
Stock-based compensation expense
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost
2021
Purchase Obligation, to be Paid, Year One
Retained Earnings (Accumulated Deficit) [Member]
Retained Earnings [Member]
Measurement Basis [Axis]
Measurement Basis [Axis]
Total proceeds if extension option utilized
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Total Proceeds Expected If Extension Option Utilized
Mutual Covenant-Not-to-Sue Agreement, Patent Claims, Total Proceeds Expected If Extension Option Utilized
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]
THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Significant Accounting Policies [Text Block]
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Purchases of investments
Payments to Acquire Investments
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Deferred Taxes [Line Items]
Deferred Taxes [Line Items]
Deferred Taxes [Line Items]
Options outstanding, Weighted average remaining contractual life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Allowance for credit losses
Accounts Receivable, Allowance for Credit Loss
Award Type [Domain]
Award Type [Domain]
Corporate debt securities [Member]
Corporate Debt Securities [Member]
Trading Symbol
Trading Symbol
Options exercisable, Weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Other contractual commitments and open purchase orders
Other Commitment
PROPERTY AND EQUIPMENT—Net
Property, Plant and Equipment Disclosure [Text Block]
COST OF REVENUE:
Cost of Goods and Services Sold [Abstract]
Income Tax Benefit from Stock Option Plans
Income Tax Benefit from Stock Option Plans [Table Text Block]
Income Tax Benefit from Stock Option Plans [Table Text Block]
Technical Support and Other [Member]
Technical Support and Other [Member]
Technical Support and Other [Member]
NET INCOME PER SHARE
Earnings Per Share [Text Block]
FINANCIAL INSTRUMENTS AND FAIR VALUE
Financial Instruments Disclosure [Text Block]
CURRENT LIABILITIES:
Liabilities, Current [Abstract]
Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Entity Shell Company
Entity Shell Company
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Shares withheld for taxes (in shares)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Amount held in indemnity escrow, expected to be held for 12 months
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow, Portion Expected to be Held for Twelve Months After Closing Date
Business Combination, Consideration Transferred, Amount Held in Indemnity Escrow, Portion Expected to be Held for Twelve Months After Closing Date
Recurring [Member]
Fair Value, Recurring [Member]
Options vested and expected to vest, Weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Income Tax Contingency [Table]
Income Tax Contingency [Table]
Schedule of Unrealized Loss on Investments
Schedule of Unrealized Loss on Investments [Table Text Block]
Recently Adopted Accounting Standards and Recent Accounting Standards Not Yet Effective
New Accounting Pronouncements, Policy [Policy Text Block]
Entity Public Float
Entity Public Float
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Short-term investments
Short-term Investments