Payables and Accruals [Abstract]
Schedule of Accrued Expenses and Other Current Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Document And Entity Information [Abstract]
Document And Entity Information [Abstract]
Document Fiscal Period Focus
Document Fiscal Period Focus
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Trading Symbol
Trading Symbol
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Earnings Per Share [Abstract]
Basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Effect of assumed exercised options (in shares)
Weighted Average Number Diluted Shares Outstanding Adjustment
Diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Reconciliation of Shares Used in Calculating Basic and Diluted Earnings Per Share
Schedule of Weighted Average Number of Shares [Table Text Block]
Accounting Policies [Abstract]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Recently Issued Accounting Standards
New Accounting Pronouncements, Policy [Policy Text Block]
Revenue Recognition
Revenue From Contract With Customer [Policy Text Block]
Disclosure of accounting policy for revenue from contract with customer.
Net Loss Per Share
Earnings Per Share, Policy [Policy Text Block]
Segment Information
Segment Reporting, Policy [Policy Text Block]
Goodwill and Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Payroll and other employee related costs
Employee-related Liabilities, Current
Professional services and consulting and other vendor fees
Accrued Professional Fees, Current
Unrecognized tax benefits
Taxes Payable, Current
Sales commissions
Accrued Sales Commission, Current
Contingent earn-out
Business Combination, Contingent Consideration, Liability, Current
Restructuring
Restructuring Reserve
Other
Other Accrued Liabilities, Current
Total
Accrued Liabilities, Current
Segment Reporting [Abstract]
Summary of Financial Information by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Long-Lived Assets by Geographic Region
Long-lived Assets by Geographic Areas [Table Text Block]
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Hosted Services - Business
Hosted Services - Business [Member]
Hosted Services - Business [Member]
Hosted Services - Consumer
Hosted Services - Consumer [Member]
Hosted Services - Consumer [Member]
Professional Services
Professional Services [Member]
Professional Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Revenue
Revenues
Subsequent Events [Abstract]
Subsequent Events
Subsequent Events [Text Block]
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Commitments and Contingencies Disclosure [Abstract]
Rental expense for operating leases
Operating Leases, Rent Expense
Defined benefit plan employer matching contribution on first five percent of employee compensation
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Percentage of employees' eligible compensation for employer matching contribution
Percentage Of Eligible Employee Compensation
Percentage Of Eligible Employee Compensation
Defined benefit plan employer contribution limit
Defined Contribution Plan, Employer Discretionary Contribution Amount
Defined benefit plan employer contribution vesting period
Defined Benefit Plan Employers Contribution Of Vesting Period
Defined Benefit Plan Employers Contribution of Vesting Period
Defined benefit plan employer contribution
Defined Benefit Plan, Plan Assets, Contributions by Employer
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Letter of Credit
Letter of Credit [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
LOC for Office Space
Letter Of Credit For Office Space [Member]
Letter Of Credit For Office Space [Member]
LOC for Security Deposit
Letter Of Credit For Security Deposit [Member]
Letter Of Credit For Security Deposit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Letters of credit outstanding
Line of Credit Facility, Maximum Borrowing Capacity
Proceeds from amounts drawn against letters of credit
Proceeds from Lines of Credit
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Type [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Severance and other associated costs
Employee Severance [Member]
Wind down cost legacy platform
Wind Down Costs [Member]
Wind Down Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Restructuring costs
Restructuring Charges
Restructuring costs
Restructuring Reserve, Accrual Adjustment
Accrued Expenses and Other Current Liabilities
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted Average Assumptions of Fair Value Options Using Black-Scholes Option-Pricing Model
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Summary of Stock Option Activity and Weighted Average Exercise Prices
Share-based Compensation, Stock Options, Activity [Table Text Block]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]
Exercise Price Range [Axis]
Exercise Price Range [Axis]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
$1.79 - $7.60
Exercise Price Range One [Member]
Exercise Price Range One [Member]
$7.95 - $9.55
Exercise Price Range Two [Member]
Exercise Price Range Two [Member]
$9.90 - $10.13
Exercise Price Range Three [Member]
Exercise Price Range Three [Member]
$10.31 - $11.96
Exercise Price Range Four [Member]
Exercise Price Range Four [Member]
$12.09 - $12.32
Exercise Price Range Five [Member]
Exercise Price Range Five [Member]
$12.45 - $12.45
Exercise Price Range Six [Member]
Exercise Price Range Six [Member]
$12.46 - $13.59
Exercise Price Range Seven [Member]
Exercise Price Range Seven [Member]
$14.30- $15.96
Exercise Price Range Eight [Member]
Exercise Price Range Eight [Member]
$16.05 - $21.75
Exercise Price Range Nine [Member]
Exercise Price Range Nine [Member]
$22.35 - $27.25
Exercise Price Range Ten [Member]
Exercise Price Range Ten [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, minimum (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit
Exercise price range, maximum (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit
Options outstanding, Number of shares outstanding (in shares)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options
Options outstanding, Weighted-average remaining contractual life
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term
Options outstanding, Weighted-average exercise price (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price
Options exercisable, Number of shares (in shares)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options
Options exercisable, Weighted-average exercise price (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Segments [Axis]
Segments [Axis]
Segment [Domain]
Segments [Domain]
Business
Business [Member]
Business [Member].
Consumer
Consumer [Member]
Consumer [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Goodwill, beginning balance
Goodwill
Acquisitions
Goodwill, Acquired During Period
Foreign exchange adjustment
Goodwill, Foreign Currency Translation Gain (Loss)
Goodwill, ending balance
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Business Combinations [Abstract]
Acquisitions
Business Combination Disclosure [Text Block]
Stockholders' Equity
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Restructuring
Restructuring and Related Activities Disclosure [Text Block]
Restructuring expense
Restructuring liability
Property, Plant and Equipment [Abstract]
Property and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Legal Matters
Legal Matters and Contingencies [Text Block]
Amortization
Amortization
Number of operating segments
Number of Operating Segments
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Property Plant And Equipment By Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Computer equipment and software
Computer Equipment And Software [Member]
Computer Equipment And Software [Member]
Furniture, equipment and building improvements
Furniture Equipment And Building Improvements [Member]
Furniture, Equipment and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property and equipment, gross
Property, Plant and Equipment, Gross
Less: accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Total
Property, Plant and Equipment, Net
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Expected life
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Historical volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Restructuring Reserve [Roll Forward]
Restructuring Reserve [Roll Forward]
Balance, Beginning of the year
Severance and other associated costs
Severance Costs
Cash payments
Payments for Restructuring
Wind down cost legacy platform
Wind Down Costs of Legacy Platform
Wind Down Costs of Legacy Platform
Balance, End of period
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Cost of revenue
Cost of Sales [Member]
Sales and marketing
Selling and Marketing Expense [Member]
General and administrative
General and Administrative Expense [Member]
Product development
Research and Development Expense [Member]
Statement [Line Items]
Statement [Line Items]
Costs and expenses
Costs and Expenses [Abstract]
Cost of revenue
Cost of Revenue
Sales and marketing
Selling and Marketing Expense
General and administrative
General and Administrative Expense
Product development
Research and Development Expense
Amortization of purchased intangibles
Amortization of Intangible Assets
Total costs and expenses
Costs and Expenses
Loss from operations
Operating Income (Loss)
Other (expense) income , net
Nonoperating Income (Expense)
Loss before provision for income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Provision for income taxes
Income Tax Expense (Benefit)
Net loss
Net Income (Loss) Attributable to Parent
Net loss per share of common stock:
Basic net loss per common share (in dollars per share)
Earnings Per Share, Basic
Diluted net loss per common share (in dollars per share)
Earnings Per Share, Diluted
Weighted-average shares used to compute net loss per share:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding used in basic net loss per common share calculation (in shares)
Weighted average shares outstanding used in diluted net loss per common share calculation (in shares)
Additional Information on Operating Expenses
Operating Expenses [Abstract]
Stock-based compensation expense
Allocated Share-based Compensation Expense
Depreciation expense
Depreciation, Nonproduction
Amortization of purchased intangibles
Cost of Goods and Services Sold, Amortization
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
ASU No. 2014-09
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on retained earnings
Cumulative Effect of New Accounting Principle in Period of Adoption
Prepaid commissions
Deferred Sales Commission
Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Cancelled or expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Ending balance (in shares)
Options vested and expected to vest (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Options exercisable at end of period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Cancelled or expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Ending balance (in dollars per share)
Options vested and expected to vest (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Options exercisable at end of period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Weighted Average Remaining Contractual Term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Options vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Options exercisable at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Options outstanding at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Options vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Options exercisable at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Schedule of Financial Assets and Liabilities Measured at Fair Value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Changes in Fair Value of Level 3 Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Schedule of Derivative Instruments
Schedule of Derivative Instruments [Table Text Block]
Schedule of Derivative Liabilities at Fair Value
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
Gain (Losses) on Derivative Instruments Recognized in Income Statement
Derivative Instruments, Gain (Loss) [Table Text Block]
ASSETS
Assets [Abstract]
CURRENT ASSETS:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Cash held as collateral
Restricted Cash and Cash Equivalents
Accounts receivable, net of allowance for doubtful accounts of $1,951 and $1,318 as of September 30, 2018 and December 31, 2017, respectively
Accounts Receivable, Net, Current
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property and equipment, net
Intangibles, net
Intangible Assets, Net (Excluding Goodwill)
Goodwill
Deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities and Equity [Abstract]
CURRENT LIABILITIES:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued expenses and other current liabilities
Deferred revenue
Contract with Customer, Liability, Current
Total current liabilities
Liabilities, Current
Deferred revenue
Contract with Customer, Liability, Noncurrent
Other liabilities
Other Liabilities, Noncurrent
Deferred tax liability
Deferred Income Tax Liabilities, Net
Total liabilities
Liabilities
Commitments and contingencies
Commitments and Contingencies
STOCKHOLDERS’ EQUITY:
Stockholders' Equity Attributable to Parent [Abstract]
Common stock
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital
Treasury stock
Treasury Stock, Value
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Schedule of Goodwill
Schedule of Goodwill [Table Text Block]
Summary of Intangible Assets
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Derivative [Table]
Derivative [Table]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Derivatives not designated as hedging instruments
Not Designated as Hedging Instrument [Member]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Foreign currency derivative contracts
Foreign Exchange Forward [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Prepaid expenses and other current assets
Prepaid Expenses and Other Current Assets [Member]
Accrued expenses and other liabilities
Accrued Liabilities [Member]
Derivative [Line Items]
Derivative [Line Items]
Derivative Assets
Derivative Asset [Abstract]
Foreign currency derivative contracts
Derivative Asset
Derivative Liabilities
Derivative Liability [Abstract]
Foreign currency derivative contracts
Derivative Liability
Total deferred revenue - short term
Total deferred revenue - long term
Net Loss Per Share
Earnings Per Share [Text Block]
Subsequent Event [Table]
Subsequent Event [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
AdvantageTec
AdvantageTec Inc [Member]
AdvantageTec Inc [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Aggregate purchase price
Business Combination, Consideration Transferred
Cash payment in acquisition
Payments to Acquire Businesses, Gross
Equity consideration in acquisition
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable
Potential earn-out consideration payments based on achieving targets
Potential Earn-Out Contingent Consideration Payments, Target Based
Potential Earn-Out Contingent Consideration Payments, Target Based
Recognition of deferred revenue
Contract with Customer, Liability, Revenue Recognized
Award Type [Axis]
Award Type [Axis]
Equity Award [Domain]
Equity Award [Domain]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Number of Shares (in thousands)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Beginning balance outstanding (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
Awarded (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
Released (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures
Non-vested and outstanding at end of period (in shares)
Expected to vest (in shares)
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest
Weighted Average Grant Date Fair Value (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Grant Date Fair Value [Abstract] [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Grant Date Fair Value [Abstract] [Roll Forward]
Beginning balance outstanding (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
Awarded (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
Released (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
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
Non-vested and outstanding at end of period (in dollars per share)
Expected to vest (in dollars per share)
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest, Weighted Average Grant Date Fair Value
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest, Weighted Average Grant Date Fair Value
Aggregate Fair Value (in thousands)
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value [Roll Forward]
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value [Roll Forward]
Non-vested and outstanding at September 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Nonvested And Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Nonvested And Outstanding
Expected to vest
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Expected To Vest
Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Expected To Vest
Restricted cash balance
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Recurring
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Level 3
Fair Value, Inputs, Level 3 [Member]
Money market funds
Money Market Funds [Member]
Contingent earn-out
Contingent Earn-Out [Member]
Contingent Earn-Out [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:
Assets, Fair Value Disclosure [Abstract]
Money market funds
Cash and Cash Equivalents, Fair Value Disclosure
Assets
Assets, Fair Value Disclosure
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Liabilities
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
2012 Stock Repurchase Program
2012 Stock Repurchase Program [Member]
2012 Stock Repurchase Program [Member]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
1998 Plan
Nineteen Ninety Eight Plan [Member]
Nineteen Ninety Eight Plan [Member]
2000 Plan
Two Thousand Plan [Member]
Two Thousand Plan [Member]
1998 and 2000 Plan
Nineteen Ninety Eight And Two Thousand Plan [Member]
Nineteen Ninety Eight and Two Thousand Plan [Member]
2009 Plan
Two Thousand Nine Plan [Member]
Two Thousand Nine Plan [Member]
2009 Plan, Amended
Two Thousand Nine Plan, Amended [Member]
Two Thousand Nine Plan, Amended [Member]
2010 Employee Stock Purchase Plan
Employee Stock Purchase Plan Twenty Ten [Member]
Employee Stock Purchase Plan, 2010 [Member]
2018 Plan
2018 Plan [Member]
2018 Plan [Member]
Award Type [Domain]
Stock Option
Employee Stock Option [Member]
Stock repurchase program, authorized amount
Stock Repurchase Program, Authorized Amount
Increase to authorized amount
Stock Repurchase Program, Increase To Authorized Amount
Stock Repurchase Program, Increase To Authorized Amount
Stock repurchased during period (in shares)
Stock Repurchased During Period, Shares
Stock repurchase program, remaining authorized repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Per share weighed average fair value of stock options granted during the period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Period used to determine volatility
Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Period Used To Determine Volatility
Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Period Used To Determine Volatility
Shares of common stock available for issuance (up to)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Increase in number of shares of common stock available for issuance
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized
Shares reserved for future issuance
Common Stock, Capital Shares Reserved for Future Issuance
Stock option term
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term
Share Based Compensation Arrangement by Share Based Payment Award, Options, Expiration Term
Total value of stock options exercised
Stock Issued During Period, Value, Stock Options Exercised
Unrecognized compensation cost related to nonvested share-based compensation arrangements
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options
Weighted average recognition period of unrecognized compensation cost
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
United States
UNITED STATES
Other Americas
Other Americas [Member]
Other Americas [Member]
Total Americas
Americas [Member]
EMEA
EMEA [Member]
APAC
POSIT - ASIA PACIFIC [Member]
United Kingdom
UNITED KINGDOM
Summary of Property and Equipment
Property, Plant and Equipment [Table Text Block]
Statement of Cash Flows [Abstract]
Noncash or Part Noncash Acquisitions by Unique Description [Axis]
Noncash or Part Noncash Acquisitions by Unique Description [Axis]
Noncash or Part Noncash Acquisition, Name [Domain]
Noncash or Part Noncash Acquisition, Name [Domain]
BotCentral
BotCentral [Member]
BotCentral [Member]
Conversable, Inc.
Conversable Inc [Member]
Conversable Inc [Member]
OPERATING ACTIVITIES:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net loss
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Stock-based compensation expense
Share-based Compensation
Depreciation
Depreciation
Amortization of purchased intangibles
Amortization of tenant allowance
Tenant Allowance, Amortization, Lessee
Amortization of lessee lease liability over time which offsets lease expense.
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Provision for doubtful accounts, net
Provision for Doubtful Accounts
Changes in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Prepaid expenses and other current assets
Increase Decrease In Prepaid Expense And Other Current Assets
Increase (Decrease) In Prepaid Expense And Other Current Assets
Other assets
Increase (Decrease) in Other Operating Assets
Accounts payable
Increase (Decrease) in Accounts Payable
Accrued expenses and other current liabilities
Increase (Decrease) in Accrued Liabilities
Deferred revenue
Increase (Decrease) in Deferred Revenue
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Net cash (used in) provided by operating activities
Net Cash Provided by (Used in) Operating Activities
INVESTING ACTIVITIES:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of property and equipment, including capitalized software
Payments to Acquire Productive Assets
Cash held as collateral for foreign exchange forward contracts
Increase (Decrease) in Restricted Cash
Payments for acquisitions and intangible assets, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
FINANCING ACTIVITIES:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock in connection with the exercise of options
Proceeds from Issuance of Common Stock
Repurchase of common stock
Payments for Repurchase of Common Stock
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
EFFECT OF FOREIGN EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS
Effect of Exchange Rate on Cash and Cash Equivalents
CHANGE IN CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents, Period Increase (Decrease)
CASH AND CASH EQUIVALENTS - Beginning of the period
CASH AND CASH EQUIVALENTS - End of the period
SUPPLEMENTAL DISCLOSURE OF OTHER CASH FLOW INFORMATION:
Supplemental Cash Flow Information [Abstract]
Cash paid for income taxes
Income Taxes Paid, Net
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Purchase of property and equipment recorded in accounts payable
Capital Expenditures Incurred but Not yet Paid
Leasehold improvements funded by landlord
Capital Expenditures Paid By Landlord
Capital Expenditures Paid By Landlord
Issuance of shares of common stock in connection with acquisition
Other Significant Noncash Transaction, Value of Consideration Given
Contingent earn-out in connection with the acquisition of Conversable recorded in accrued expenses and common stock
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration
Change in Fair Value of Level 3 Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Conversable, Inc. addition
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Cash payment
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Changes in fair value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Fair Value Adjustment
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Fair Value Adjustment
Ending balance
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Contingent earn-out consideration in cash
Contingent earn-out consideration in equity
Business Combination, Contingent Consideration, Equity
Business Combination, Contingent Consideration, Equity
Deferred revenue in acquisition
Business Combination, Consideration Transferred, Other
Goodwill acquired in acquisition
Aggregate amount of intangibles acquired
Indefinite-lived Intangible Assets Acquired
Potential earn-out consideration payments for compensation
Potential Earn-Out Contingent Consideration Payments, Compensation To Employee
Potential Earn-Out Contingent Consideration Payments, Compensation To Employee
Period for recognizing compensation-related potential earn-out consideration payments
Potential Earn-Out Contingent Consideration Payments, Compensation To Employee, Expense Recognition, Period
Potential Earn-Out Contingent Consideration Payments, Compensation To Employee, Expense Recognition, Period
Acquisition costs
Business Acquisition, Transaction Costs
Schedule of Deferred Revenues and Contract Balances
Contract with Customer, Asset and Liability [Table Text Block]
Schedule of Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Schedule of Revenue by Geographic Region
Revenue from External Customers by Geographic Areas [Table Text Block]
Segment Information
Segment Reporting Disclosure [Text Block]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Corporate
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Revenue:
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Revenue
Sales and marketing
Unallocated corporate expenses
Segment Reporting Unallocated Corporate Expenses
Segment Reporting Unallocated Corporate Expenses
Description of Business and Basis of Presentation
Business Description and Accounting Policies [Text Block]
Other (income) expense
Other Nonoperating Income (Expense) [Member]
Notional amount of foreign currency derivative contracts
Derivative, Notional Amount
Fair value of foreign currency derivatives contracts
Derivative, Fair Value, Net
Gain (losses) on Derivative Instruments Recognized in Statements of Operations
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Comprehensive loss
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Israel
ISRAEL
Australia
AUSTRALIA
Netherlands
NETHERLANDS
Other
United Kingdom, Germany, Japan, France, Italy [Member]
United Kingdom, Germany, Japan, France, Italy [Member]
Total long-lived assets
Assets, Noncurrent
2018
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2022
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Total
Finite-Lived Intangible Assets, Net
Billing Status, Type [Axis]
Billing Status, Type [Axis]
Receivables Billing Status [Domain]
Receivables Billing Status [Domain]
Accounts Receivable
Billed Revenues [Member]
Unbilled Receivable
Unbilled Revenues [Member]
Contract Balances [Roll Forward]
Contract Balances [Roll Forward]
Contract Balances [Roll Forward]
Opening balance, Receivable
Increase (decrease) in accounts receivable, net
Increase (Decrease) In Billed Receivables
Increase (Decrease) In Billed Receivables
Increase (decrease) in unbilled receivables, net
Increase (Decrease) in Unbilled Receivables
Ending balance, Receivable
Opening balance, Deferred Revenue (current)
Increase (decrease) in current deferred revenue, net
Increase (Decrease) in Deferred Revenue, Current
Increase (Decrease) in Deferred Revenue, Current
Ending balance, Deferred Revenue (current)
Opening balance, Deferred Revenue (long-term)
Increase (decrease) in long-term deferred revenue, net
Increase (Decrease) in Deferred Revenue, Noncurrent
Increase (Decrease) in Deferred Revenue, Noncurrent
Ending balance, Deferred Revenue (long-term)
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Finite Lived Intangible Assets By Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Technology
Technology [Member]
Technology [Member]
Customer relationships
Customer Contracts [Member]
Trade names
Trade Names [Member]
Non-compete agreements
Noncompete Agreements [Member]
Patents
Patents [Member]
Other
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount
Finite-Lived Intangible Assets, Gross
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Net Carrying Amount
Weighted Average Amortization Period
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Schedule of Restructuring and Related Costs
Restructuring and Related Costs [Table Text Block]
Anti-dilutive common stock awards not included in earnings per share calculation (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount