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Increases for tax positions of current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Equity Component [Domain] Equity Component [Domain] Property and equipment, net Property and equipment, net Total Property, Plant and Equipment, Net Entity Tax Identification Number Entity Tax Identification Number Stock Plans Share-based Payment Arrangement [Text Block] Net loss attributable to Synchronoss Net (loss) income attributable to Synchronoss Net Income (Loss) Attributable to Parent Foreign Basis Differences Effective Income Tax Rate Reconciliation, Foreign Basis Differences, Percent Effective Income Tax Rate Reconciliation, Foreign Basis Differences, Percent Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] LIBOR London Interbank Offered Rate (LIBOR) [Member] Trade name Trade Names [Member] Current Fiscal Year End Date 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Intralinks Holdings, Inc. [Member] Intralinks Holdings, Inc. [Member] Capital stock authorized (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. Deferred revenues, non-current Contract with Customer, Liability, Noncurrent Options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Cloud Cloud [Member] Cloud [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Computer software Software Purchased [Member] Includes purchased software applications. 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Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Preferred stock, redemption period Preferred Stock, Redemption Period Preferred Stock, Redemption Period Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Borrowings on revolving line of credit Proceeds from Lines of Credit Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Basic: Basic EPS Earnings Per Share, Basic [Abstract]