Other income (expense), net
Other Nonoperating Income (Expense)
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Amortization of debt discount
Amortization of Debt Discount (Premium)
Treasury Stock
Treasury Stock [Member]
Accounts payable and accrued expenses
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Service revenues
Service [Member]
Segments [Axis]
Segments [Axis]
Unrealized gain (loss) on derivatives, net of tax expense (benefit) of $—, $71, $(4) and $364, respectively
Unrealized (loss) gain on derivatives
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Liabilities and Stockholders’ Equity
Liabilities and Equity [Abstract]
Line of credit
Line of Credit [Member]
Denominator
Denominator [Abstract]
Denominator [Abstract]
Unrealized gain on derivatives, net of tax expense/(benefit)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax
Accumulated OCI beginning balance
Accumulated OCI ending balance
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
Current Fiscal Year End Date
Current Fiscal Year End Date
Proceeds from issuance of long-term debt
Proceeds from Issuance of Long-term Debt
(Loss) Income from operations
Operating Income (Loss)
Long-lived Assets by Geographic Areas
Long-lived Assets by Geographic Areas [Table Text Block]
Payments of debt issuance costs
Payments of Debt Issuance Costs
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Total current liabilities
Liabilities, Current
Severance Costs
Severance Costs
Contract with Customer, Asset and Liability
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Professional fees
Accrued Professional Fees, Current
Commitments and Contingencies (Note 9)
Commitments and Contingencies
Employee taxes paid on withholding shares
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation
Common stock repurchases
Payments for Repurchase of Common Stock
Assets
Assets [Abstract]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Net carrying amount
Convertible Notes Payable, Noncurrent
Taxes and fees
Taxes Payable, Current
Entity Shell Company
Entity Shell Company
Cover [Abstract]
Cover [Abstract]
Cash paid for amounts included in the measurement of lease liabilities
Operating Lease, Payments
Accounts payable
Accounts Payable, Current
Goodwill, Foreign Currency Translation Gain (Loss)
Goodwill, Foreign Currency Translation Gain (Loss)
Document Type
Document Type
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Less unamortized discount
Debt Instrument, Unamortized Discount
2021
Lessee, Operating Lease, Liability, to be Paid, Year One
Schedule of Net Carrying Amount of Liability and Equity Components of Notes
Convertible Debt [Table Text Block]
AOCI tax
AOCI Tax, Attributable to Parent
2024
Lessee, Operating Lease, Liability, to be Paid, Year Four
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Canada
CANADA
Stock Based Compensation Expense Capitalized In Internally Developed Software Costs
Stock Based Compensation Expense Capitalized In Internally Developed Software Costs
Stock Based Compensation Expense Capitalized In Internally Developed Software Costs
Total operating expenses
Operating Expenses
Changes in derivatives
Changes In Derivatives
The net unrealized change in the aggregate value of derivative instruments used in operating activities and included in earnings in the period
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Document Quarterly Report
Document Quarterly Report
Common stock, par value (usd per share)
Common Stock, Par or Stated Value Per Share
Service, access and product revenues excluding USF
Service and Product [Member]
Service and Product
Other liabilities
Other Liabilities, Noncurrent
Deferred tax assets
Deferred Income Tax Assets, Net
Share-based expense
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
Effect of exchange rate changes on cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Inventory, net of allowance of $64 and $76, respectively
Inventory, Net
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Advertising costs
Advertising Expense
Deferred customer acquisition costs
Increase (Decrease) in Deferred Subscriber Acquisition Costs
Increase (Decrease) in Deferred Subscriber Acquisition Costs
Entity File Number
Entity File Number
Geographical [Domain]
Geographical [Domain]
Amortization of deferred customer acquisition costs
Capitalized Contract Cost, Amortization
Statement [Line Items]
Statement [Line Items]
Usage
Usage [Member]
Usage
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]
Class of Stock [Domain]
Class of Stock [Domain]
Scenario, Forecast
Forecast [Member]
Document Fiscal Period Focus
Document Fiscal Period Focus
Statement [Table]
Statement [Table]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Operating Lease, Right-of-Use Asset, Amortization Expense
Operating Lease, Right-of-Use Asset, Amortization Expense
Deferred income taxes
Deferred Income Taxes and Tax Credits
Israel
ISRAEL
Convertible senior notes - due 2024
Convertible Debt, Noncurrent
Foreign Tax Authority
Foreign Tax Authority [Member]
Earnings Per Share, Basic and Diluted
Earnings Per Share, Basic and Diluted
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Long-Term Debt
Debt Disclosure [Text Block]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Prepaid expenses
Prepaid Expense, Current
Cost of revenues
Cost of Revenue
Capitalized Computer Software, Accumulated Amortization
Capitalized Computer Software, Accumulated Amortization
Derivative, number of instruments held
Derivative, Number of Instruments Held
Schedule of Earnings Per Share, Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Amendment Flag
Amendment Flag
Shares available for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Other accruals
Other Accrued Liabilities, Current
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Measurement Frequency [Axis]
Measurement Frequency [Axis]
United Kingdom
United Kingdom
UNITED KINGDOM
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Schedule of Finite-Lived Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Acquisition of long-term assets included in accounts payable and accrued expenses
Capital Expenditures Incurred but Not yet Paid
Geographical [Axis]
Geographical [Axis]
Local Phone Number
Local Phone Number
Additional principal amount
Debt Instrument Additional Principal Amount
Debt Instrument Additional Principal Amount
Segments [Domain]
Segments [Domain]
Vonage Communications Platform
Vonage Communications Platform [Member]
Vonage Communications Platform
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Total net proceeds after deduction
Proceeds from Debt, Net of Issuance Costs
2022
Lessee, Operating Lease, Liability, to be Paid, Year Two
State and Local Jurisdiction
State and Local Jurisdiction [Member]
Cash flows provided by/(used in) financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Marketing
Accrued Marketing Costs, Current
Amortization of intangibles
Amortization of Intangible Assets
Supplemental Cash Flow - Operating Leases
Lease, Cost [Table Text Block]
Entity Current Reporting Status
Entity Current Reporting Status
2023
Lessee, Operating Lease, Liability, to be Paid, Year Three
Other assets
Other Assets, Noncurrent
Proceeds from Income Tax Refunds
Proceeds from Income Tax Refunds
Segment Reporting Disclosure
Segment Reporting Disclosure [Text Block]
Converted instrument, amount
Debt Conversion, Converted Instrument, Amount
Consumer
Consumer Services [Member]
Consumer Services
Concentration Risk [Table]
Concentration Risk [Table]
Total assets
Assets
Scenario [Axis]
Scenario [Axis]
Total interest expense related to the Convertible Senior Notes
Interest Expense, Debt
Schedule of Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Converted shares issued (in shares)
Debt Conversion, Converted Instrument, Shares Issued
Intangible assets, net of accumulated amortization of $264,820 and $221,182, respectively
Total intangible assets
Finite-Lived Intangible Assets, Net
Long-lived assets
Long-Lived Assets
Other Countries
Non-US, Excluding Canada And United Kingdom [Member]
Non-US, Excluding Canada And United Kingdom [Member]
Business Exit Costs
Business Exit Costs
Convertible senior notes, net
Convertible Notes Payable
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Entity Small Business
Entity Small Business
Interest
Interest Payable
Interest expense
Interest expense
Interest Expense
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]
Customer representation of revenue, percentage
Customer Representation Of Revenue, Percentage
Customer Representation Of Revenue, Percentage
Entity Filer Category
Entity Filer Category
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
(Decrease) increase due to foreign currency fluctuation
Unrecognized Tax Benefits, Period Increase (Decrease)
Product and Service [Axis]
Product and Service [Axis]
Total liabilities
Liabilities
Entity Address, City or Town
Entity Address, City or Town
Supplemental Cash Flow Elements [Abstract]
Less imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Service, access and product cost of revenues
Service, access and product cost of revenues
Service, access and product cost of revenues
Schedule of Stock by Class
Schedule of Stock by Class [Table Text Block]
Recognized revenue, contract liabilities
Contract with Customer, Liability, Revenue Recognized
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Incurred penalties and interest expense
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
Operating lease, expense
Operating Lease, Expense
Inventory
Increase (Decrease) in Inventories
Telecommunications
Accrued Utilities, Current
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Document Fiscal Year Focus
Document Fiscal Year Focus
Other assets and liabilities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Customer credits
Accrued Customer Credits, Current
Accrued Customer Credits, Current
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Class of Stock [Line Items]
Class of Stock [Line Items]
Due to reclassification of previously deferred amounts
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax
Adjustments to reconcile net loss to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Outstanding, Balance at beginning of period (in shares)
Outstanding, Balance at end of period (in shares)
Common Stock, Shares, Outstanding
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Convertible debt, fair value disclosures
Convertible Debt, Fair Value Disclosures
Alternative Minimum Tax [Member]
Alternative Minimum Tax [Member]
Alternative Minimum Tax
Engineering and development
Research and Development Expense
Domestic Tax Authority
Domestic Tax Authority [Member]
Reclassifications
Reclassification, Comparability Adjustment [Policy Text Block]
Acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Common stock, shares authorized (in shares)
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Long-term debt including current maturities
Debt, Long-term and Short-term, Combined Amount
Revenue from External Customers by Geographic Areas
Revenue from External Customers by Geographic Areas [Table Text Block]
Proceeds from exercise of stock options
Proceeds from Stock Options Exercised
Document Period End Date
Document Period End Date
Contractual interest expense
Interest Expense, Debt, Excluding Amortization
Entity Registrant Name
Entity Registrant Name
Income Statement [Abstract]
Income Statement [Abstract]
Accumulated Other Comprehensive Income
AOCI Attributable to Parent [Member]
Operating lease liabilities
Operating Lease, Liability, Noncurrent
Change in fair value of cash flow hedge accounting contracts, net of tax
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)
Typical life of a customer
Customer Life
Customer Life
Stock Issued During Period, Value, Purchase of Assets
Stock Issued During Period, Value, Purchase of Assets
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Current assets:
Assets, Current [Abstract]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Related income tax benefit
Deferred Tax Assets, Convertible Note Hedge
Deferred Tax Assets, Convertible Note Hedge
Indebtedness under revolving credit facility
Revolving credit facility - due 2023
Long-term Line of Credit, Noncurrent
Patents and patent licenses
Patents [Member]
Deferred customer acquisition costs
Capitalized Contract Cost, Net
Schedule of Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Four
Lessee, Operating Lease, Liability, to be Paid, after Year Four
Scenario [Domain]
Scenario [Domain]
Acquisition and development of software assets
Payments for Software
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Entity Tax Identification Number
Entity Tax Identification Number
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Reserve for potential tax liability pending new requirements from state or municipal agencies
Loss Contingency Accrual
Allowances for doubtful accounts and obsolete inventory
ProvisionForDoubtfulAccountsAndInventory
Amount of expense related to write-down of receivables and inventory to the amount expected to be realized.
Net loss
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Trading Symbol
Trading Symbol
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Current and Non-Current Portion
Current and Non-Current Portion [Member]
Current and Non-Current Portion [Member]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Share-based expense
Share-based Payment Arrangement, Noncash Expense
Employee taxes paid on withholding shares
Payment, Tax Withholding, Share-based Payment Arrangement
Stock Repurchased and Retired During Period, Shares
Stock Repurchased and Retired During Period, Shares
Unamortized discount
Debt Instrument, Unamortized Discount, Noncurrent
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Lessee, Operating Leases
Lessee, Operating Leases [Text Block]
Payments for capped call transactions and costs
Payments for capped call transactions and costs
Payments for capped call transactions and costs
Restricted cash
Restricted Cash and Cash Equivalents
City Area Code
City Area Code
Customer relationships
Customer Relationships [Member]
Cost of Goods and Services Sold
Cost of Goods and Services Sold
Depreciation and amortization
Cost, Depreciation and Amortization
Cost, Depreciation and Amortization
Equity Components [Axis]
Equity Components [Axis]
Title of 12(b) Security
Title of 12(b) Security
Source of Revenue [Domain]
Source of Revenue [Domain]
[Domain] for Source of Revenue [Axis]
Minimum
Minimum [Member]
USF revenues
USF revenues
USF revenues
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Operating lease liabilities, current portion
Operating Lease, Liability, Current
Schedule of Cash Flow, Supplemental Disclosures
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Income Tax Authority, Name [Domain]
Income Tax Authority, Name [Domain]
Subscription services
Subscription services [Member]
Subscription services
United States
United States
United States
UNITED STATES
Restrictions on Cash and Cash Equivalents
Restrictions on Cash and Cash Equivalents [Table Text Block]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Stockholders' Equity Note Disclosure
Stockholders' Equity Note Disclosure [Text Block]
Additional paid-in capital
Additional Paid in Capital, Common Stock
Depreciation and amortization
Deprecation, Amortization And Impairment Charges Excluding Amortization Of Intangible Assets And Debt Issuance Costs
Depreciation and Amortization and Impairment Charges
Stockholders’ Equity:
Statement of Stockholders' Equity [Abstract]
Operating lease, discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Sales and Marketing Expenses
Advertising Cost [Policy Text Block]
Less debt issuance costs
Unamortized issuance cost
Debt Issuance Costs, Net
USF revenues
USF [Member]
USF
Gains expected to be reclassified from accumulated OCI during the next 12 months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Accounts receivable, net of allowance of $8,808 and $5,494, respectively
Accounts Receivable, after Allowance for Credit Loss, Current
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Cost of Revenues
Cost of Goods and Service [Policy Text Block]
Adjustments for New Accounting Pronouncements [Axis]
Accounting Standards Update [Axis]
Loss on disposal of property and equipment
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
Weighted Average Number of Shares Outstanding, Basic and Diluted
Weighted Average Number of Shares Outstanding, Basic and Diluted
Goodwill
Goodwill
Deferred Employer Portion of Social Security Payroll Tax
Deferred Employer Portion of Social Security Payroll Tax
Deferred Employer Portion of Social Security Payroll Tax
Customer acquisition cost
Capitalized Contract Cost, Gross
Stock Repurchased and Retired During Period, Value
Stock Repurchased and Retired During Period, Value
Other Income (Expense):
Nonoperating Income (Expense) [Abstract]
Principal
Debt Instrument, Face Amount
Fair Value, Inputs, Level 2
Fair Value, Inputs, Level 2
Fair Value, Inputs, Level 2 [Member]
Other current assets
Other Assets, Current
Schedule of Goodwill
Schedule of Goodwill [Table Text Block]
Equity [Abstract]
Equity [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]
Revenue, Performance Obligation, Description of Timing
Revenue, Performance Obligation, Description of Timing
Entity Central Index Key
Entity Central Index Key
Derivative, fixed interest rate
Derivative, Fixed Interest Rate
Deferred revenue, current portion
Contract with Customer, Liability, Current
Entity Emerging Growth Company
Entity Emerging Growth Company
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption [Axis]
Debt instrument, conversion price (in dollar per share)
Debt Instrument, Convertible, Conversion Price
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Operating lease, weighted average remaining lease term
Operating Lease, Weighted Average Remaining Lease Term
- Schedule of Goodwill [Abstract]
- Schedule of Goodwill [Abstract]
- Schedule of Goodwill [Abstract]
Sales and marketing
Selling and Marketing Expense
Amortization of financing costs and debt discount
Amortization of Debt Issuance Costs and Discounts
Net cash provided by/(used in) financing activities
Net Cash Provided by (Used in) Financing Activities
Payments for short and long-term debt
Principal payments on notes and revolving credit facility
Repayments of Long-term Debt
Revenue, Remaining Performance Obligation, Amount
Revenue, Remaining Performance Obligation, Amount
Inventory Valuation Reserves
Inventory Valuation Reserves
Balance as of January 1
Uncertain tax benefits as of the end of the period
Uncertain tax position
Unrecognized Tax Benefits
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Weighted-average common shares outstanding:
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Common stock, par value 0.001 per share; 596,950 shares authorized at September 30, 2020, and December 31, 2019
Common Stock, Value, Issued
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Purchase of capped calls
Purchase of capped calls
Purchase of capped calls
USF and others
USF and others [Member]
USF and others
Decrease due to settlements and payments
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Operating Leases, Income Statement, Sublease Revenue
Operating Leases, Income Statement, Sublease Revenue
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Issued, Balance at beginning of period (in shares)
Issued, Balance at end of period (in shares)
Common Stock, Shares, Issued
Cash flows used in investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Total
Operating Lease, Liability
Software, net of accumulated amortization of $106,857 and $102,133, respectively
Capitalized Computer Software, Net
Total long-term debt
Long-term Debt, Excluding Current Maturities
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Total stockholders’ equity
Beginning Balance
Ending Balance
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Other Employee-related Liabilities, Current
Other Employee-related Liabilities, Current
Accumulated other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax
Income Tax Disclosure
Income Tax Disclosure [Text Block]
Compensation and related taxes and temporary labor
Employee-related Liabilities, Current
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Purchase of intangible assets
Payments to Acquire Intangible Assets
Restricted stock units
Restricted Stock Units (RSUs) [Member]
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
General and administrative
General and Administrative Expense
Type of Adoption [Domain]
Accounting Standards Update [Domain]
Antidilutive securities excluded from earnings per common share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Access and product revenues
Product [Member]
Increase due to current year positions
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Inventory
Accrued Inventory
Accrued Inventory
Equity Component [Domain]
Equity Component [Domain]
Accumulated OCI Balance Attributable to Cash Flow Derivatives
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Line of credit facility, interest rate at period end
Line of Credit Facility, Interest Rate at Period End
Payments for capped call transactions
Payments For Capped Call Transactions
Payments For Capped Call Transactions
Entity Address, Address Line One
Entity Address, Address Line One
Segment gross margin
Total reportable gross margin
Gross Profit
Numerator
Numerator [Abstract]
Numerator [Abstract]
Source of Revenue [Axis]
Source of Revenue [Axis]
Source of Revenue [Axis]
Property and equipment, net of accumulated depreciation of $120,127 and $109,646, respectively
Property, Plant and Equipment, Net
Net loss
Net loss
Net Income (Loss) Attributable to Parent
Entity Address, State or Province
Entity Address, State or Province
Changes in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
USF cost of revenues
USF cost of revenues
USF cost of revenues
For the year ended December 31, 2020 (excluding the nine months ended September 30, 2020 for the period ended September 30, 2020)
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Trade names
Trade Names [Member]
Leases [Abstract]
Leases [Abstract]
Nature of Business
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Total current assets
Assets, Current
Operating Expenses:
Operating Expenses [Abstract]
Operating loss carryforwards
Operating Loss Carryforwards
Loss per common share:
Earnings Per Share [Abstract]
Income Tax Authority, Name [Axis]
Income Tax Authority, Name [Axis]
Earnings per share, antidilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic and diluted earnings per share [Abstract]
Basic and Diluted Earnings per Share [Abstract]
Basic and Diluted Earnings per Share
Entity Interactive Data Current
Entity Interactive Data Current
Stock Issued During Period, Shares, Purchase of Assets
Stock Issued During Period, Shares, Purchase of Assets
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Derivative Instruments in Hedges, Assets, at Fair Value
Derivative Instruments in Hedges, Assets, at Fair Value
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Common Stock
Common Stock Issued
Common Stock
Common Stock [Member]
Product and Service [Domain]
Product and Service [Domain]
Deferred customer acquisition costs, current portion
Capitalized Contract Cost, Net, Current
Developed technology
Technology-Based Intangible Assets [Member]
Debt issuance costs included in accounts payable and accrued liabilities
Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction
Secured debt
Secured Debt [Member]
Finite-Lived Intangible Assets, Gross
Finite-Lived Intangible Assets, Gross
Interest rate, stated percentage
Debt Instrument, Interest Rate, Stated Percentage
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Foreign currency translation adjustment, net of tax expense/(benefit)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Shares issued under the 2015 Equity Incentive Plan (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Net increase in cash, cash equivalents, and restricted cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Total other expense, net
Nonoperating Income (Expense)
Derivative, amount of hedged item
Derivative, Amount of Hedged Item
Maturity of Lease Liabilities
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Stock options
Share-based Payment Arrangement, Option [Member]
Unaudited Interim Financial Information
Basis of Accounting, Policy [Policy Text Block]
Issuance of shares for asset acquisition
Stock Issued
Treasury, Balance at beginning of period (in shares)
Treasury, Balance at end of period (in shares)
Treasury Stock, Shares
Foreign currency translation adjustment, net of tax expense (benefit) of $(1,086), $847, $(1,275), and $938, respectively
Foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Interest
Interest Paid, Excluding Capitalized Interest, Operating Activities
Modificationofoperatingleaseliability
Modificationofoperatingleaseliability
Modificationofoperatingleaseliability
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Segment gross margin %
Gross Profit as a Percentage of Revenues
Gross Profit as a Percentage of Revenues
Right-of-use assets obtained in exchange for operating lease liability
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Service, access and product revenues
Service, access and product revenues
Service, access and product revenues
Total revenues
Total revenues
Revenues
Class of Stock [Axis]
Class of Stock [Axis]
Income tax benefit (expense)
Income Tax Expense (Benefit)
Income taxes
Income Taxes Paid, Net
Cash, cash equivalents, and restricted cash, beginning of period
Cash, cash equivalents, and restricted cash, end of period
Cash, cash equivalents, and restricted cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
New Accounting Pronouncements or Change in Accounting Principle [Table]
Accounting Standards Update and Change in Accounting Principle [Table]
Accrued expenses
Accrued expenses
Accrued Liabilities, Current
Schedule of Unrecognized Tax Benefits Roll Forward
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Domain]
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Accumulated Net Gain (Loss)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Schedule of Long-Term Debt
Schedule of Long-term Debt Instruments [Table Text Block]
Decrease due to prior year positions
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Noncompete Agreements
Noncompete Agreements [Member]
Contract liabilities
Contract with Customer, Liability
Other assets - deferred cloud computing implementation costs
Increase (Decrease) in Other Operating Assets
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Stock option exercises
Stock Issued During Period, Value, Stock Options Exercised
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Line of credit, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Derivative, cap price (in dollars per share)
Derivative, Cap Price
Finite-Lived Intangible Assets, Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Amortization of debt issuance costs
Amortization of Debt Issuance Costs
Maximum
Maximum [Member]
Security Exchange Name
Security Exchange Name
Accumulated Deficit
Retained Earnings [Member]
Schedule of Interest Expense Recognized Related to Notes
Interest Income and Interest Expense Disclosure [Table Text Block]
Effective tax rate
Effective Income Tax Rate Reconciliation, Percent
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]
Significant Accounting Policies
Significant Accounting Policies [Text Block]
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Her Majesty's Revenue and Customs (HMRC)
Her Majesty's Revenue and Customs (HMRC) [Member]
Accounts Receivable, Allowance for Credit Loss
Accounts Receivable, Allowance for Credit Loss
Document Transition Report
Document Transition Report
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Treasury stock, at cost
Treasury Stock, Value
Receivables
Contract with Customer, Asset, after Allowance for Credit Loss
Earnings Per Share
Earnings Per Share [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Employee taxes paid on withholding shares (in shares)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Fair value, measurements, recurring
Fair Value, Recurring [Member]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]