Income Tax Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Foreign Foreign Tax Authority [Member] Tax Period [Axis] Tax Period [Axis] Tax Period [Domain] Tax Period [Domain] 2017 - 2021 First Succeeding Five Year Period [Member] Information related to the period encompassing the next 5 tax years after the balance sheet date. 2022 - 2026 Second Succeeding Five Year Period [Member] Information related to the period encompassing the second 5 tax years after the balance sheet date. 2027 - 2036 Succeeding Period After Ten Years [Member] Information related to the period after the next 10 tax years after the balance sheet date. Indefinite Indefinite [Member] Information pertaining to NOL carryforwards indefinitely after 20 years Details of net operating loss carryforwards Operating Loss Carryforwards [Line Items] Net operating loss Operating Loss Carryforwards Capital Structure Capital Structure Capital Transactions Disclosure [Text Block] Disclosure of information about the entity's common and preferred stock. Accounting Policies [Abstract] Schedule of software development costs Schedule of Finite-Lived Intangible Assets [Table Text Block] Impact of new accounting standard Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Schedule of revenues and property and equipment, net by geographic area Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock Common Stock [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Share Repurchase Program 2016 Share Repurchase Program2016 [Member] Information pertaining to February 2016 share repurchase program. Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Authorized capital stock (in shares) Capital Stock Shares Authorized The maximum number of shares of the total capital stock permitted to be issued by an entity's charter and bylaws. Par value per share of capital stock (in dollars per share) Capital Stock Par or Stated Value Per Share Face amount or stated value of capital stock per share; generally not indicative of the fair market value per share. Designated common stock (in shares) Common Stock, Shares Authorized Designated preferred stock (in shares) Preferred Stock, Shares Authorized Number of votes per share (vote) Number of Votes Per Share Represents the number of votes available for each share held. Dividends Dividends Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Amount authorized to be purchased under stock repurchase program Stock Repurchase Program, Authorized Amount Number of shares repurchased under program (in shares) Treasury Stock, Shares, Acquired Value of shares repurchased under program Stock Repurchased During Period, Value Business Combinations [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] BPO BPO Divestiture [Member] BPO Divestiture [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Net revenues Disposal Group, Including Discontinued Operation, Revenue Cost of services Disposal Group, Including Discontinued Operation, Costs of Goods Sold Selling, general and administrative Disposal Group, Including Discontinued Operation, General and Administrative Expense Total costs and expenses Disposal Group, Including Discontinued Operation, Operating Expense Income from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax and Gain (Loss) on Disposal of Discontinued Operations Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax and Gain (Loss) on Disposal of Discontinued Operations Gain on sale of discontinued operations Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Income from discontinued operations before taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Provision for income taxes Discontinued Operation, Tax Effect of Discontinued Operation Discontinued operations, net of taxes Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Equity Method Investments and Joint Ventures [Abstract] Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Payables and Accruals [Abstract] Schedule of components of accrued expenses Schedule of Accrued Liabilities [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] ESPP Plan Employee Stock [Member] Stockholder's Equity Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Employee Stock Purchase Plan Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Term of Employee Stock Purchase Plan Term of Employee Stock Purchase Plan Represents the term of Employee Stock Purchase Plan to all active employees. Total number of shares available for purchase (in shares) Common Stock, Capital Shares Reserved for Future Issuance ESPP participation period Employee Stock Purchase Plan Payroll Withholding Period The period of time that employees participate through payroll withholdings in the Employee Stock Purchase Plan. Percentage of fair market value of common stock Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Maximum percentage of total combined voting power a participant is allowed to be granted a right to purchase common stock Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum Maximum number of shares authorized for purchase within any purchase period (in shares) Common Stock, Maximum Number of Shares Authorized Within any Purchase Period Common Stock, Maximum Number of Shares Authorized Within any Purchase Period Maximum value of shares authorized for purchase within any purchase period Common Stock, Maximum Value of Shares Authorized Within any Calendar Year Common Stock, Maximum Value of Shares Authorized Within any Calendar Year Schedule of components of income before income taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of components of income tax (expense) benefit Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of reconciliations of the statutory tax rates and the effective tax rates Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of significant components of the Company's deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of net operating loss carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Schedule of reconciliation of the amounts of unrecognized tax benefits excluding interest Summary of Income Tax Contingencies [Table Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Property, Equipment, and Leasehold Improvements Property Equipment And Leasehold Improvements [Member] Represents activity related to property and equipment and leasehold improvements. Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Cash and Cash Equivalents Cash and Cash Equivalents [Abstract] Maximum time period for which an investment is considered a cash equivalent Cash Equivalents Original Maturity Period Maximum Represents the maximum original maturity period of investments classified as cash equivalents. Marketable Securities Marketable Securities [Abstract] Maturity period of fixed income investments Marketable Securities, Fixed Income, Investments Maturity Period Represents the maturity period of fixed income investments under marketable securities. Maturity period of marketable securities to be classified as long-term Marketable Securities, Maturity Period Represents the maturity period of marketable securities to be classified as long-term. Property and Equipment Property, Plant and Equipment [Abstract] Estimated useful life of property and equipment and leasehold improvements Property, Plant and Equipment, Useful Life Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Credit Facility Line of Credit [Member] Amended And Restated Credit Agreement Amended And Restated Credit Agreement [Member] Information pertaining to Amended and Restated Credit Agreement (the "Credit Agreement"). Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] 2019 Notes Convertible Senior Notes Due2019 [Member] Represents activity related to 0.75% Convertible Senior Notes due 2019 (the "2019 Notes"). Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Credit Facility Line of Credit Facility [Line Items] Borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Commitment fee on unused balance (as a percent) Line of Credit Facility, Commitment Fee Percentage Amount of borrowing capacity to which the company has a right to request an increase Line of Credit Facility Right to Increase Maximum Borrowing Capacity Amount Represents the borrowing capacity maximum amount to which the company has a right to request an increase. Interest rate spread Debt Instrument, Basis Spread on Variable Rate Short term debt Short-term Debt Aggregate payoff Repayments of Lines of Credit Face amount of debt issued Debt Instrument, Face Amount Interest rate, as a percent Debt Instrument, Interest Rate, Stated Percentage Carrying amount of debt Long-term Debt, Gross Capitalized finance fees Deferred Finance Costs, Noncurrent, Net Conversion rate Debt Instrument, Convertible, Conversion Ratio Conversion price Debt Instrument, Convertible, Conversion Price Repurchase price, expressed as a percentage of principal of debt repurchased Debt Instrument, Repurchase Price as a Percentage of Principal Amount Repurchased Represents the purchase price of debt to be repurchased expressed as a percentage of the principal amount of the repurchased debt. Effective interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Fair value of debt Long-term Debt, Fair Value Statement of Financial Position [Abstract] Accounts receivable, allowance for doubtful accounts (in dollars) Allowance for Doubtful Accounts Receivable, Current Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Treasury stock (in shares) Treasury Stock, Shares Legal Matters Loss Contingencies [Table] Loss Contingencies [Table] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Obligations Under Acquisition Agreement Obligations Under Acquisition Agreement [Member] Represents the contingencies related to provisions under the acquisition agreement. Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Miyowa Miyowa S A [Member] Represents Miyowa S.A., an acquisition of the entity. Legal Matters Loss Contingencies [Line Items] Number of former shareholders (shareholder) Loss Contingency, Number of Plaintiffs Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign (Loss) income from continuing operations, before taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Redeemable Noncontrolling Interests Redeemable Noncontrolling Interest [Member] Represents the portion of liability or temporary equity in a subsidiary not attributable, directly or indirectly, to the parent. Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in fair value of the Company’s Level 3 redeemable noncontrolling interests Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Balance at beginning of period Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Fair value adjustment Temporary Equity, Accretion to Redemption Value Net loss attributable to redeemable noncontrolling interests Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Balance at end of period Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Contingent Consideration Obligation Commitments [Member] Level 3 changes Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in fair value of the Company's Level 3 contingent consideration obligation Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance as at the beginning of the period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Fair value adjustment to contingent consideration obligation included in net income Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Balance as at the end of the period Period of reporting lag in recording equity income Equity Method Investment, Period of Reporting Lag Equity Method Investment, Period of Reporting Lag Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [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] Software Development Software Development [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Performance related penalties Sales, Service Level Penalties Sales, Service Level Penalties Research and Development Research and Development [Abstract] Estimated minimum useful life of software development costs Capitalized Computer Software Useful Life Minimum Represents the minimum useful life of capitalized software development costs. Estimated maximum useful life of software development costs Capitalized Computer Software Useful Life Maximum Represents the maximum useful life of capitalized software development costs. Unamortized software development costs Capitalized Computer Software, Gross Amortization expenses of capital software development costs Capitalized Computer Software, Amortization Statement of Comprehensive Income [Abstract] Net income attributable to Synchronoss Net Income (Loss) Attributable to Parent Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Unrealized gain (loss) on securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Net loss on intra-entity foreign currency transactions Other Comprehensive Income, Net Gain (Loss) on Intra Entity Foreign Currency Transactions Arising During Period, Net of Tax Represents the amount after tax, changes to accumulated comprehensive income resulting from net gain (loss) on intra-entity foreign currency transactions. Total other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive income attributable to Synchronoss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for doubtful receivables Allowance for Doubtful Accounts [Member] Valuation allowance for deferred tax assets Valuation Allowance of Deferred Tax Assets [Member] Valuation and qualifying accounts Valuation and Qualifying Accounts Disclosure [Line Items] Allowance for doubtful receivables Movement in Valuation Allowances and Reserves [Roll Forward] Beginning Balance Valuation Allowances and Reserves, Balance Additions Valuation Allowances and Reserves, Charged to Cost and Expense Reductions Valuation Allowances and Reserves, Deductions Ending Balance Goodwill and Intangible Assets Disclosure [Abstract] Estimated future amortization expense Finite-Lived Intangible Assets, Net [Abstract] 2017 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Fair Value Measurements of Assets and Liabilities Schedule of assets and liabilities held and their related classifications under the fair value hierarchy Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of estimated fair value of investments classified as available for sale Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Unrealized losses and fair value of available-for-sale securities Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Expected maturities of available-for-sale securities Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of changes in fair value of Level 3 Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Accrued compensation and benefits Employee-related Liabilities, Current Accrued accounting fees Accrued Professional Fees, Current Accrued consulting fees Accrued Consulting Fees, Current Represents the carrying value, as of the balance sheet date, of obligations incurred through that date and payable for consulting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle, if longer). Accrued other Other Accrued Liabilities, Current Accrued income tax payable Accrued Income Taxes, Current Total Accrued Liabilities, Current Legal Matters Legal Matters and Contingencies [Text Block] Earnings Per Share [Abstract] Earnings Per Share Reconciliation [Abstract] Earnings Per Share Reconciliation [Abstract] Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Net income (loss) from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) from continuing operations attributable to Synchronoss Income (Loss) from Continuing Operations Attributable to Parent Net income from discontinued operations, net of taxes Net income attributable to Synchronoss Income effect for interest on convertible debt, net of tax Interest on Convertible Debt, Net of Tax Numerator for diluted EPS- Income to common stockholders after assumed conversions Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted Net Income (Loss) Available to Common Stockholders, Diluted Net Income (Loss) Available to Common Stockholders, Diluted Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Shares from assumed conversion of convertible debt (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Options and unvested restricted shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings Per Share, Basic [Abstract] Earnings Per Share, Basic [Abstract] Basic, Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Basic, Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Basic (in dollars per share) Earnings Per Share, Basic Earnings Per Share, Diluted [Abstract] Earnings Per Share, Diluted [Abstract] Diluted, Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Diluted, Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Diluted (in dollars per share) Earnings Per Share, Diluted Anti-dilutive stock options excluded (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount New Accounting Pronouncement, Early Adoption [Table] New Accounting Pronouncement, Early Adoption [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] As reported Scenario, Previously Reported [Member] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Principles, Early Adoption [Domain] New Accounting Principles, Early Adoption [Domain] As adjusted New Accounting Pronouncement, Early Adoption, Effect [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] ASU 2016-09 Accounting Standards Update201609 [Member] Accounting Standards Update 2016-09. New Accounting Pronouncement, Early Adoption [Line Items] New Accounting Pronouncement, Early Adoption [Line Items] Provision for income taxes Income Tax Expense (Benefit) Net cash from operations Net Cash Provided by (Used in) Operating Activities Net cash used in financing Net Cash Provided by (Used in) Financing Activities Deferred tax liability Deferred Tax Liabilities, Net, Noncurrent Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Summary of assets and liabilities held by the Company and their related classifications under the fair value hierarchy Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets Assets, Fair Value Disclosure [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Securities available-for-sale Available-for-sale Securities Total assets Assets, Fair Value Disclosure Liabilities Liabilities, Fair Value Disclosure [Abstract] Contingent consideration obligation Business Combination, Contingent Consideration, Liability Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Temporary Equity Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract] Redeemable noncontrolling interest Redeemable Noncontrolling Interest, Equity, Other, Fair Value Transfers between Levels Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract] Fair value of asset transfers between Levels 1, 2, and 3 Fair Value, Assets, Transfers between Levels 1, 2, and 3, Amount Amount of transfers of assets measured on a recurring basis between Levels 1, 2, and 3 of the fair value hierarchy. Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Acquisition of Intralinks Common Stock Acquisition of Intralinks Common Stock [Member] Purchase of Intralinks Common Stock [Member] Base Rate Base Rate [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Goldman Sachs Bank USA Goldman Sachs Bank USA [Member] Goldman Sachs Bank USA [Member] Term Facility Secured Debt [Member] Revolving Facility Revolving Credit Facility [Member] Divestiture of SpeechCycle Divestiture of SpeechCycle [Member] Divestiture of SpeechCycle [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Common stock sale price (in dollars per share) Business Acquisition, Share Price Value of common stock paid for acquisition Business Combination, Consideration Transferred Payments to acquire outstanding shares of Intralinks common stock Payments to Acquire Businesses and Interest in Affiliates Amortization percent per annum Line of Credit Facility, Amortization Percent Per Year Line of Credit Facility, Amortization Percent Per Year Mandatory prepayments, percent of net cash proceeds from non-ordinary sale or disposition of assets Line of Credit Facility, Mandatory Prepayment, Covenant One Line of Credit Facility, Mandatory Prepayment, Covenant One Mandatory prepayments, percent of net cash proceeds from incurrences of debt Line of Credit Facility, Mandatory Prepayment, Covenant Two Line of Credit Facility, Mandatory Prepayment, Covenant Two Divestiture consideration Disposal Group, Including Discontinued Operation, Consideration Period of transition services agreement Disposal Group, Including Discontinued Operation, Period of Transition Services Agreement Disposal Group, Including Discontinued Operation, Period of Transition Services Agreement Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Zentry, LLC Joint Venture Zentry, LLC [Member] Joint Venture Zentry, LLC [Member] SNCR, LLC Joint Venture SNCR, LLC [Member] Joint Venture SNCR, LLC [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity method investment Equity Method Investments Equity method investment, ownership interest Equity Method Investment, Ownership Percentage Ownership percentage Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Ownership percentage in VIE Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Line of credit provided to SNCR, LLC Variable Interest Entity, Financial or Other Support, Amount Goodwill and Intangibles Goodwill and Intangible Assets Disclosure [Text Block] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Net Revenues Sales Revenue, Services, Net [Member] Accounts Receivable Accounts Receivable [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Customer Concentration Risk [Member] Credit Concentration Credit Concentration Risk [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Top Customers Top Customers [Member] Represents activity related to the top customers of the entity. Concentration of Credit Risk Concentration Risk [Line Items] Percentage of concentration risk Concentration Risk, Percentage Computer hardware Computer Equipment [Member] Computer software Software Purchased [Member] Includes purchased software applications. Construction in-progress Construction in Progress [Member] Furniture and fixtures Furniture and Fixtures [Member] Building Building [Member] Leasehold improvements Leasehold Improvements [Member] Property and Equipment Property and Equipment, gross Property, Plant and Equipment, Gross Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Property, Plant and Equipment, Net Depreciation expense Depreciation Tradename Trade Names [Member] Technology Developed Technology Rights [Member] Customer lists and relationships Customer Lists And Relationships [Member] Acquired in a business combination or other transaction, a customer list that consists of information about customers such as their name and contact information; it may also be an extensive data base that includes other information about the customers such as their order history and demographic information. An asset acquired in a business combination representing a customer relationship that exists between the entity and its customer if (a) the entity has information about the customer and has regular contact with the customer and (b) the customer has the ability to make direct contact with the entity. Such assets would include tenant relationships obtained through acquisition, unless otherwise included in acquired in-place leases. Capitalized software and patents Capitalized Software And Patents [Member] Represents the capitalized costs of purchased software applications and the exclusive legal right granted by the government to the owner of the patent to exploit an invention or a process for a period of time specified by law. Intangible assets Amortization expense Amortization of Intangible Assets Intangible assets: Cost Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Finite-Lived Intangible Assets, Net Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Openwave Messaging Openwave Messaging [Member] Information pertaining to Openwave Messaging, Inc. ("Openwave"). Customer relationships Customer Relationships [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Prepaid expenses and other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Property, Plant & Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Long term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Weighted-average amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Goodwill Goodwill Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Including Goodwill Amount of assets, including goodwill, acquired at the acquisition date. Accounts payable and accrued liabilities Business Acquisition, Purchase Price Allocation Current Liabilities Accounts Payable and Accrued Liabilities The amount of acquisition cost of a business combination allocated to accounts payable and accrued liabilities of the acquired entity. Deferred revenues Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Long term liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Due within one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due after 1 year through 5 years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Total available-for-sale marketable securities, Amortized Cost Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract] Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract] Due within one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due after 1 year through 5 years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Total available-for-sale marketable securities, Fair Value Available-for-sale Securities, Debt Maturities, Single Maturity Date Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Certificates of deposit Certificates of Deposit [Member] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Corporate bonds Corporate Bond Securities [Member] Municipal bonds Municipal Bonds [Member] Fixed Income Fund Fixed Income Funds [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Securities in unrealized loss position: Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] Securities in unrealized loss position less than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Securities in unrealized loss position greater than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Securities in unrealized loss position: Total Gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Securities in unrealized loss position: Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Securities in unrealized loss position less than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Securities in unrealized loss position greater than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Securities in unrealized loss position: Total Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2015 Plan Equity Incentive Plan2015 [Member] Definition: Information pertaining to the 2015 Equity Incentive Plan (the "2015 Plan"). Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Commitments and Contingencies Disclosure [Abstract] Statement [Table] Statement [Table] Colocation Colocation [Member] Information pertaining to colocation agreements Operating Leases Operating_leases [Member] Information pertaining to operrating leases Capital Leases Capital_leases [Member] Information pertaining to capital leases Statement [Line Items] Statement [Line Items] Aggregate annual future minimum lease payments under non-cancellable leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2017 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2018 Operating Leases, Future Minimum Payments, Due in Two Years 2019 Operating Leases, Future Minimum Payments, Due in Three Years 2020 Operating Leases, Future Minimum Payments, Due in Four Years 2021 and thereafter Operating Leases, Future Minimum Payments Due in Five Years and Thereafter For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within and after the fifth year of the balance sheet date relating to leases defined as operating. Total Operating Leases, Future Minimum Payments Due Rent expense Operating Leases, Rent Expense, Net Debt Instrument [Line Items] Debt Instrument [Line Items] Contractual interest expense Interest Expense, Debt Description of Business [Abstract] Description of Business [Abstract] Description of Business Nature of Operations [Text Block] Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Treasury Stock Treasury Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Retained Earnings Retained Earnings [Member] Statement Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity Attributable to Parent Balance (in shares) Cumulative effect adjustment to RE's Cumulative Effect of New Accounting Principle in Period of Adoption Adjusted balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance Stock based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Issuance of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of common stock on exercise of options Stock Issued During Period, Value, Stock Options Exercised Issuance of common stock on exercise of options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period ESPP compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Employee Stock Purchase Program, Requisite Service Period Recognition Issuance of common stock related to acquisition Stock Issued During Period, Value, Acquisitions Issuance of common stock related to acquisition (in shares) Stock Issued During Period, Shares, Acquisitions Issuance of common stock to subsidiary (in shares) Stock Issued During Period, Shares, New Issues Issuance of common stock to a subsidiary Treasury Stock, Value, Acquired, Cost Method Repurchase of treasury stock (in shares) Sale of Treasury Stock in connection with an employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Sale of Treasury Stock in connection with an employee stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Total other comprehensive income (loss) Tax benefit from stock option exercise Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Balance Balance (in shares) Schedule of stock-based compensation Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Schedule of fair value assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of information about stock options outstanding Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of total intrinsic value for options exercised and fair value of vested options Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block] Summary of unvested restricted stock activity Nonvested Restricted Stock Shares Activity [Table Text Block] Schedule of components of property and equipment Property, Plant and Equipment [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Schedule of reconciliation of the numerator and denominator used in computing basic and diluted net income attributable to common stockholders per common share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Basis of Presentation and Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition and Deferred Revenue Revenue Recognition, Policy [Policy Text Block] Service Level Standards Service Level Standards [Policy Text Block] Disclosure of the accounting policy for service revenue subject to service level standards and corresponding penalties for failure to meet those standards. Cost of Services Cost of Sales, Policy [Policy Text Block] Research and Development Research, Development, and Computer Software, Policy [Policy Text Block] Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Fair Value of Financial Instruments and Liabilities Fair Value of Financial Instruments, Policy [Policy Text Block] Marketable Securities Marketable Securities, Policy [Policy Text Block] Accounts Receivable and Allowance for Doubtful Accounts Trade and Other Accounts Receivable, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Noncontrolling interest Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Discontinued Operations Discontinued Operations, Policy [Policy Text Block] Investments in Affiliates and Other Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Foreign Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Basic and Diluted Net Income Attributable to Common Stockholders per Common Share Earnings Per Share, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Recently Issued Accounting Standards/Impact of New Accounting Pronouncements Adopted New Accounting Pronouncements, Policy [Policy Text Block] Segment and Geographic Information Segment Reporting, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Valuation Allowance [Table] Valuation Allowance [Table] Spatial Systems Nominees PTY LTD (Spatial) Spatial Systems Nominees P T Y Limited [Member] Represents information pertaining to the acquisition of Spatial Systems Nominees PTY LTD (Spatial). Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Deferred Revenue Deferred Revenue [Member] Information pertaining to deferred revenue. Valuation allowance Valuation Allowance [Line Items] Valuation allowance Deferred Tax Assets, Valuation Allowance Operating loss carryforwards utilized Operating Loss Carryforwards Utilized The amount of operating loss carryforwards utilized during the period. ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Marketable securities Available-for-sale Securities, Current Accounts receivable, net of allowance for doubtful accounts of $1,756 and $3,029 at December 31, 2016 and December 31, 2015, respectively Accounts Receivable, Net, Current Prepaid expenses and other assets Prepaid Expense and Other Assets, Current Assets of discontinued operations, current Disposal Group, Including Discontinued Operation, Assets, Current Total current assets Assets, Current Restricted cash Restricted Cash and Cash Equivalents, Noncurrent Marketable securities Available-for-sale Securities, Noncurrent Property and equipment, net Intangible assets, net Deferred tax assets Deferred Tax Assets, Net, Noncurrent Other assets Other Assets, Noncurrent Note receivable from related party Due from Related Parties, Noncurrent Assets of discontinued operations, non-current Disposal Group, Including Discontinued Operation, 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 Deferred revenues Deferred Revenue, Current Contingent consideration obligation Business Combination, Contingent Consideration, Liability, Current Total current liabilities Liabilities, Current Lease financing obligation - long term Capital Lease Obligations, Noncurrent Contingent consideration obligation - long-term Business Combination, Contingent Consideration, Liability, Noncurrent Convertible debt Convertible Notes Payable, Noncurrent Deferred revenues Deferred Revenue, Noncurrent Other liabilities Other Liabilities, Noncurrent Redeemable noncontrolling interest Redeemable Noncontrolling Interest, Equity, Carrying Amount Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.0001 par value; 10,000 shares authorized, 0 shares issued and outstanding at December 31, 2016 and December 31, 2015 Preferred Stock, Value, Issued Common stock, $0.0001 par value; 100,000 shares authorized, 49,317 and 48,084 shares issued; 45,323 and 44,405 outstanding at December 31, 2016 and December 31, 2015, respectively Common Stock, Value, Issued Treasury stock, at cost (3,994 and 3,679 shares at December 31, 2016 and December 31, 2015, respectively) Treasury Stock, Value Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock options Employee And Directors Stock Options [Member] An arrangement whereby an employee or member of the Board of Directors is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Weighted-average assumptions Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Expected stock price volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected life of options (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Weighted-average fair value (grant date) of the options Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, General and Administrative Expenses Selling, General and Administrative Expenses [Member] Net Revenue Sales [Member] Mirapoint Activation Business Mirapoint Activation Business Divestiture [Member] Mirapoint Activation Business Divestiture [Member] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] STI Sequential Technology International, LLC [Member] Sequential Technology International, LLC [Member] STIH Sequential Technology International Holdings, LLC [Member] Sequential Technology International Holdings, LLC [Member] Consideration transferred Cash paid for acquisition Payments to Acquire Businesses, Gross Value of common stock paid for acquisition Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Number of trading days Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Average Market Value Period Period of time prior to acquisition date used for determination of average market value of common stock issued for acquisition. Acquisition related costs Business Combination, Acquisition Related Costs Gain on sale Gain (Loss) on Disposition of Business Purchase price of divestiture Ownership interest in STI Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest after Disposal Ownership interest in STI by Sequential Technology Holdings, LLC Discontinued Operation, Majority Ownership Interest after Disposal Discontinued Operation, Majority Ownership Interest after Disposal Proceeds from the sale of discontinued operations Proceeds from Divestiture of Businesses, Net of Cash Divested Interest rate of related party note receivable Notes Receivable, Related Parties, Interest Rate Notes Receivable, Related Parties, Interest Rate Period of transition services agreement Discontinued Operation, Period of Continuing Involvement after Disposal Non-exclusive perpetual license agreement Business Combination, Separately Recognized Transactions, Revenues and Gains Recognized Compensation and Retirement Disclosure [Abstract] 401(k) Plan Pension and Other Postretirement Benefits Disclosure [Text Block] Stock Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Statement of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Amortization of debt issuance costs Amortization of Financing Costs (Gain) loss on disposals Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Gain on discontinued operations Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Amortization of bond premium Amortization of Debt Discount (Premium) Deferred income taxes Deferred Income Tax Expense (Benefit) Non-cash interest on leased facility Interest Expense, Lessee, Assets under Capital Lease Stock-based compensation Share-based Compensation Contingent consideration obligation Business Combination Contingent Consideration Arrangements Change in Amount of Contingent Consideration Liability 1 Cash Flow Effect Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net of allowance for doubtful accounts Increase (Decrease) in Accounts Receivable Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Operating Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Other liabilities Increase (Decrease) in Other Operating Liabilities Deferred revenues Increase (Decrease) in Deferred Revenue Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of fixed assets Payments to Acquire Property, Plant, and Equipment Purchases of intangible assets Payments to Acquire Intangible Assets Purchases of marketable securities available-for-sale Payments to Acquire Available-for-sale Securities Maturities of marketable securities available-for-sale Proceeds from Sale and Maturity of Available-for-sale Securities Change in restricted cash Increase (Decrease) in Restricted Cash Businesses acquired, net of cash Payments to Acquire Businesses, Net of Cash Acquired Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from the exercise of stock options Proceeds from Stock Options Exercised Taxes paid on withholding shares Payments Related to Tax Withholding for Share-based Compensation Payments on contingent consideration obligation Payments on Contingent Consideration Represents the cash outflow for payment of contingent consideration by the entity during the reporting period. Debt issuance costs Payments of Debt Issuance Costs Proceeds from issuance of convertible notes Proceeds from Convertible Debt Borrowings on revolving line of credit Proceeds from Unsecured Lines of Credit Repayment of revolving line of credit Repurchases of common stock Payments for Repurchase of Common Stock Proceeds from the sale of treasury stock in connection with an employee stock purchase plan Proceeds from Sale of Treasury Stock Repayments of capital lease obligations Repayments of Long-term Capital Lease Obligations Net cash (used in) provided by financing activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest Income Taxes Paid, Net Cash paid for interest Interest Paid Supplemental disclosures of non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Issuance of common stock in connection with Openwave acquisition Debt Debt Disclosure [Text Block] Employer contribution incurred and expensed under 401(k) Plan Defined Contribution Plan, Cost Recognized Schedule of aggregate annual future minimum lease payments under non-cancellable leases Schedule of Future Minimum Rental Payments for Capital and Operating Leases [Table Text Block] Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for capital and operating leases having initial or remaining non-cancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. 2000 Plan Stock Incentive2000 Plan [Member] Represents the 2000 stock incentive plan of the reporting entity. 2006 Plan Stock Incentive2006 Plan [Member] Represents the 2006 stock incentive plan of the reporting entity. 2010 Plan Stock Incentive2010 Plan [Member] Represents the 2010 stock incentive plan of the reporting entity. 2000 and 2006 Stock incentive plans Stock Incentive2000 And2006 Plan [Member] Represents the 2000 and 2006 stock incentive plan of the reporting entity. Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] First Anniversary Vesting First Anniversary [Member] Represents activity related the awards vesting on the first anniversary of date of grant. Monthly vesting after first anniversary Vesting Monthly Continuous Service [Member] Vesting periods after first anniversary of grant date of award. Second Anniversary Vesting Second Anniversary [Member] Represents activity related to awards vesting on the second anniversary of date of grant. Monthly vesting after second anniversary Vesting Monthly Continuous Service After Second Anniversary [Member] Vesting periods after second anniversary of grant date of award. Percentage of awards vesting Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Earnings Per Share Earnings Per Share [Text Block] Undistributed foreign earnings Deferred Tax Liability Not Recognized, Undistributed Earnings of Foreign Subsidiaries [Abstract] Royalty fees paid Royalty Expense Undistributed earnings attributable to foreign subsidiaries considered to be indefinitely invested Undistributed Earnings of Foreign Subsidiaries Reconciliation of beginning and ending amount of unrecognized tax benefits excluding interest Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Unrecognized tax benefit at the beginning of the period Unrecognized Tax Benefits Decreases for tax positions taken during prior year Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Reduction due to lapse of applicable statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Decreases for tax positions taken during prior year Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Increases for tax positions of current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Unrecognized tax benefit at the end of the period Unrecognized tax benefits that, if recognized, would impact the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Portion of current unrecognized tax benefit expected to be recognized Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Significant components of net deferred tax assets Components of Deferred Tax Assets and Liabilities [Abstract] Deferred tax assets: Components of Deferred Tax Assets [Abstract] Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Deferred revenue Deferred Tax Assets, Deferred Income Bad debts reserve Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation Federal net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards, Domestic State net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Foreign net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards, Foreign Deferred rent Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Capital loss carry forward Deferred Tax Assets, Capital Loss Carryforwards Transaction costs Deferred Tax Assets, Business Combination, Integration Related Costs Deferred Tax Assets, Business Combination, Integration Related Costs Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Intangible assets Deferred Tax Liabilities, Intangible Assets Basis difference Deferred Tax Liabilities, Property, Plant and Equipment Installment sale Deferred Tax Liabilities, Installment Sales Deferred Tax Liabilities, Installment Sales Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets Total deferred tax liabilities Deferred Tax Liabilities, Gross Less: valuation allowance Net deferred income tax (liabilities) assets Deferred Tax Liabilities, Net Reconciliation of the statutory tax rates and the effective tax rates Effective Income Tax Rate Reconciliation, Percent [Abstract] Statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Effect of rates different than statutory Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Minority interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent Non-deductible stock based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent Other permanent adjustments Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Fair market value adjustment on Earn-out Effective Income Tax Rate, Business Acquisition, Contingent Consideration, Fair Market Value Adjustments The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to differences in the deductibility or non-deductibility of fair market value adjustments on business acquisition contingent consideration potential payments in accordance with generally accepted accounting principles and enacted tax laws. Research and development credit Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Subpart F income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Ireland deferred tax liability - migration Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent Customer relationship adjustment - Australia Effective Income Tax Rate Reconciliation, Customer Relationship Adjustments, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to customer relationship adjustments. Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Net Effective Income Tax Rate Reconciliation, Percent Restructuring and Related Activities [Abstract] Restructuring Charges Restructuring and Related Activities Disclosure [Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Geographic area Reportable Geographical Components [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Domestic UNITED STATES Foreign Non-US [Member] Revenues and property and equipment, net by geographic area Revenues from External Customers and Long-Lived Assets [Line Items] Document Fiscal Year Focus Document Fiscal Year Focus Segment and Geographic Information Segment Reporting [Abstract] Number of business segments (segment) Number of Reportable Segments Number of businesses the entity is managed and operated as (business) Number of Businesses Entity is Managed and Operated as The number of businesses the entity is being managed and operated as. Revenues and property and equipment, net by geographic area Segments, Geographical Areas [Abstract] Revenues Revenues Document and Entity Information Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Summary of the restructuring accrual and changes Restructuring and Related Costs [Table Text Block] Schedule II - Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued liabilities Accrued Liabilities [Member] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employment termination costs Employee Severance [Member] Facilities consolidation Facility Closing [Member] Restructuring accrual and changes Restructuring Cost and Reserve [Line Items] Restructuring accrual and changes Restructuring Reserve [Roll Forward] Balance at the beginning of the period Restructuring Reserve Charges Restructuring Charges Payments Payments for Restructuring Balance at the end of the period Restricted stock awards Restricted Stock [Member] Share-based compensation expense Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Total stock-based compensation expense before taxes Allocated Share-based Compensation Expense Tax benefit Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Stock-based compensation cost related to non-vested equity awards not yet recognized as an expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average period over which stock-based compensation cost related to non-vested equity awards is expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Summary of fair values of assets and liabilities assumed at acquisition date Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Operating results of discontinued operations Disposal Groups, Including Discontinued Operations [Table Text Block] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Options outstanding at the beginning of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Options Exercised (in shares) Options Cancelled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Options outstanding at the end of the period (in shares) Vested or expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Exercisable (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] Balance at the beginning of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Options Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options Cancelled (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Balance at the end of the period (in dollars per share) Vested or 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 Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term Share Based Compensation Arrangement by Share Based Payment Award, Options Weighted Average Remaining Contractual Term [Abstract] Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Vested or expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable 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, Aggregate Intrinsic Value [Abstract] Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested or expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Additional disclosures related to stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Total intrinsic value for stock options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Fair value of vested awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Quarterly Vesting after first anniversary Quarterly Vesting After First Anniversary [Member] Quarterly vesting period after first anniversary of grant date of award. Performance Goal Achievement Vesting Performance Goal Attained [Member] Vesting period determined by date that the goals under the performance stock awards are achieved. Annual Vesting of Performance Awards After Initial Achievement Annual Vesting Of Performance Awards After Initial Achievement [Member] Annual vesting of performance awards after initial goals are achieved. Performance Stock Awards Performance Shares [Member] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Number of Awards Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested at the beginning of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-vested at the end of the period (in shares) Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Non-vested at the beginning of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 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 at the end of the period (in dollars per share) Additional disclosures Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Amortized Cost to Fair Value Available-for-sale Securities, Fair Value to Amortized Cost Basis [Abstract] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Unrealized gain (loss) on securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Sales of marketable securities Proceeds from Sale of Available-for-sale Securities, Debt New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncement, Early Adoption, Effect ASU 2015-03 Accounting Standards Update201503 [Member] Accounting Standards Update 2015-03 Interest-Imputation (Topic 835-30): Simplifying the Presentation of Debt Issuance Costs. Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Domain] Adjustments for Change in Accounting Principle [Domain] Stock Compensation Expense Forfeiture Rate Stock Compensation Expense Forfeiture Rate [Member] Adjustments for changes in stock compensation expense related to elimination of requirement to estimate and apply a forfeiture rate to outstanding awards. Excess Tax Benefits Excess Tax Benefits [Member] Adjustments for change in realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. Tax Withholding For Share Based Compensation Tax Withholding For Share Based Compensation [Member] Adjustments for change in amounts recognized to satisfy employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Deferred Tax Assets Deferred Tax Assets [Member] Adjustments for change in previously unrecognized deferred tax assets. Other Assets Other Assets [Member] Long-term Debt Long-term Debt [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Increase (decrease) in net cash provided by financing activities Increase (decrease) in net cash provided by operating activities Effective tax rate Increase (decrease) in weighted-average common shares outstanding, diluted (in shares) Deferred financing costs Deferred Finance Costs, Net Goodwill Goodwill [Roll Forward] Balance at the beginning of the period Acquisitions Goodwill, Acquired During Period Reclassifications, adjustments and other Goodwill, Other Changes Reclassified to assets of discontinued operations, non-current Goodwill, Transfers Translation adjustments Goodwill, Translation Adjustments Balance at the end of the period Components of income tax (expense) benefit Income Tax Expense (Benefit), Continuing Operations [Abstract] Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Income tax expense Subsequent Events Review Subsequent Events [Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitment fees Debt Instrument, Unused Borrowing Capacity, Fee Interest expense Income Statement [Abstract] Net revenues Costs and expenses: Costs and Expenses [Abstract] Cost of services Cost of Services, Excluding Depreciation, Depletion, and Amortization Research and development Research and Development Expense Selling, general and administrative Selling, General and Administrative Expense Net change in contingent consideration obligation Restructuring charges Total costs and expenses Costs and Expenses (Loss) income from continuing operations Operating Income (Loss) Interest income Investment Income, Interest Interest expense Interest Expense Other income (expense), net Other Nonoperating Income (Expense) Net (loss) income from continuing operations Net income Net income (loss) per common share attributable to Synchronoss: Basic (in shares) Diluted (in shares) Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Schedule of changes in accumulated other comprehensive income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Acquisition and Divestiture Business Combination Disclosure [Text Block] Income Taxes Income Tax Disclosure [Text Block] Schedule of changes in goodwill Schedule of Goodwill [Table Text Block] Schedule of composition of intangible assets Schedule of estimated annual amortization expense of intangible assets for the next five years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Foreign Currency Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized (Loss) Income on Intra-Entity Foreign Currency Transactions Accumulated Net Gain Loss On Intra Entity Foreign Currency Transactions [Member] Changes to accumulated comprehensive income resulting from net gain (loss) on intra-entity foreign currency transactions. Unrealized Holding Gains (Losses) on Available-for-Sale Securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss) [Line Items] Changes in accumulated other comprehensive income (loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Tax effect Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Impairment charges on goodwill Goodwill, Impairment Loss Impairment of Long-Lived Assets Asset Impairment Charges [Abstract] Impairment charges on long lived assets Impairment of Long-Lived Assets Held-for-use Income Taxes Historical period used in future taxable income assumptions Income Tax Assumptions Historical Lookback Period Represents the number of years of historical results used in assumptions about future taxable income.