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Represents activity related the awards vesting on the first anniversary of date of grant. 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Other assets Increase (Decrease) in Other Operating Assets Uncertain tax positions Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Cloud Cloud [Member] Cloud [Member] Computer software Software Purchased [Member] Includes purchased software applications. Contract Fulfillment Costs Contract Fulfillment Costs [Member] Contract Fulfillment Costs [Member] Long-term debt, net of debt issuance costs Long-term Debt, Excluding Current Maturities Total stock-based compensation expense Share-based Payment Arrangement, Expense Cost of Revenues Cost of Goods and Service [Policy Text Block] Gain on Disposals of intangible assets Gain (Loss) on Disposition of Intangible Assets Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets Earnings (loss) per share: Earnings Per Share, Basic and Diluted [Abstract] Net loss Net income (loss) attributable to Synchronoss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Payables and Accruals [Abstract] Payables and Accruals [Abstract] Schedule of Components of Income before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Number of shares issued in transaction (in shares) Sale of Stock, Number of Shares Issued in Transaction Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Current assets: Assets, Current [Abstract] Cost Finite-Lived Intangible Assets, Gross Intangible assets: Estimated future amortization expense Finite-Lived Intangible Assets, Net [Abstract] Schedule of Composition of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Software development amortization expense Capitalized Computer Software, Amortization Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Issuance of common stock on exercise of options (in shares) Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Total other comprehensive (loss) income Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Over-Allotment Option Over-Allotment Option [Member] Decrease related to Lapse of Statute of Limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Five Auditor Firm ID Auditor Firm ID Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Software development impairment charges Capitalized Computer Software, Impairments 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 Class of Stock [Domain] Class of Stock [Domain] Preferred dividend paid in cash Preferred stock dividend Payments of Ordinary Dividends, Preferred Stock and Preference Stock Temporary Equity [Line Items] Temporary Equity [Line Items] Borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Service Line [Domain] Service Line [Domain] [Domain] for Service Line [Axis] 2014 Convertible Senior Notes due 2019: 2014 Convertible Senior Notes Due 2019 [Member] 2014 Convertible Senior Notes Due 2019 Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Federal Funds Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Cost of revenues Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Additions to capitalized software Payments for Software Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Professional Services Professional Services [Member] Professional Services [Member] Preferred Stock Preferred Stock [Member] Beginning Balance Ending Balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Cost of revenues Cost of Sales [Member] Accrued income taxes payable Accrued Income Taxes, Current License License [Member] Net loss continuing operations Net loss from operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Capital loss carry forward Deferred Tax Assets, Capital Loss Carryforwards State net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Foreign Current Foreign Tax Expense (Benefit) Description of Business Nature of Operations [Text Block] Technology Developed Technology Rights [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Schedule of Allowance For Credit Losses Accounts Receivable, Allowance for Credit Loss [Table Text Block] 2023 Succeeding Second Year Period [Member] Information related to the period encompassing the second 5 tax years after the balance sheet date. Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-13 [Member]