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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] Beginning Balance Other comprehensive loss Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Tax effect Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Total comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending Balance Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Sequential Technology International Holdings, LLC Sequential Technology International Holdings, LLC [Member] Sequential Technology International Holdings, LLC [Member] Goldman Sachs Bank USA Goldman Sachs Bank USA [Member] Goldman Sachs Bank USA [Member] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Indirect Guarantee of Indebtedness Indirect Guarantee of Indebtedness [Member] 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] Movement in Financing Receivable [Roll Forward] Movement in Financing Receivable [Roll Forward] Movement in Financing Receivable [Roll Forward] Seller Note Financing Receivable, Gross Impaired Financing Receivable, Recorded Investment Impaired Financing Receivable, Recorded Investment Unamortized Discount Financing Receivable, Unamortized Discount (Premium) Financing Receivable, Unamortized Discount (Premium) Unamortized Discount Financing Receivable, Unamortized Discount (Premium), Cumulative Balance Financing Receivable, Unamortized Discount (Premium), Cumulative Balance Loan Accrued Interest Accrued Investment Income Receivable Loan Accrued Interest Accrued Investment Income Receivable, Net Accrued Investment Income Receivable, Net Restricted Cash, Current Restricted Cash, Current Distribution Note Escrow Deposit Distribution interest Interest on Escrow Deposit Interest on Escrow Deposit Distribution interest Interest on Escrow Deposit, Net Interest on Escrow Deposit, Net Total Financing Receivable, Net Cumulative balance Financing Receivable, Net, Cumulative Balance Financing Receivable, Net, Cumulative Balance Description of Business Description of Business Nature of Operations [Text Block] Income Taxes Income Tax Disclosure [Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] 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"). 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Interest expense on borrowings Interest Expense, Debt Interest Expense, Long-term Debt Interest Expense, Long-term Debt Interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Total debt, carrying value Long-term Debt, Fair Value Additional interest for non-compliance, percent Convertible Debt, Additional Interest for Non-compliance, Percent Convertible Debt, Additional Interest for Non-compliance, Percent Second additional interest for non-compliance, percent Convertible Debt, Second Additional Interest for Non-compliance, Percent Convertible Debt, Second Additional Interest for Non-compliance, Percent Debt default, percent of holders Debt Instrument, Debt Default, Percent of Holders Debt Instrument, Debt Default, Percent of Holders Liability at fair value Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value Notice of holders of 2019 Notes threshold for acceleration of notes due (percent) Debt Instrument, Subjective Acceleration Clause, Outstanding Principle Amount Of Debt Threshold Debt Instrument, Subjective Acceleration Clause, Outstanding Principle Amount Of Debt Threshold Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] 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, cash equivalents and restricted cash Cash and Cash Equivalents, Fair Value Disclosure Marketable securities-short term Marketable securities-long term Total assets Assets, Fair Value Disclosure Total assets Liabilities, Fair Value Disclosure [Abstract] Contingent interest derivative Business Combination, Contingent Consideration, Liability Mandatorily redeemable financial instrument Convertible Debt Interest Derivative Convertible Debt Interest Derivative Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Total liabilities Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract] Redeemable noncontrolling interests 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. Accounts receivable, net Accounts receivable, allowance for doubtful accounts (in dollars) Allowance for Doubtful Accounts Receivable, Current Total current assets Deferred tax assets Deferred Tax Assets, Net Lease financing obligation Preferred stock, shares authorized (shares) Preferred Stock, Shares Authorized Common stock, $0.0001 par value; 100,000 shares authorized, 49,439 and 52,024 shares issued; 42,277 and 46,965 outstanding at June 30, 2018 and December 31, 2017, respectively Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (shares) Common Stock, Shares Authorized Common stock, shares issued (shares) Common Stock, Shares, Issued Common stock, shares outstanding (shares) Common Stock, Shares, Outstanding Treasury stock, shares (shares) Treasury Stock, Shares Accumulated other comprehensive loss Total stockholders’ equity Total liabilities and stockholders’ equity Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Contract with Customer, Asset and Liability Contract with Customer, Asset and Liability [Table Text Block] Debt Debt Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Amended Credit Facility Amended And Restated Credit Agreement [Member] Information pertaining to Amended and Restated Credit Agreement (the "Credit Agreement"). Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Credit Facility Line of Credit [Member] 2017 Term Facility Secured Debt [Member] Revolving Facility Revolving Credit Facility [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Amortization of debt issuance costs Amortization of Debt Issuance Costs Commitment fees Debt Instrument, Unused Borrowing Capacity, Fee Additional interest on default Additional Interest Expense on Default Additional Interest Expense on Default Non-cash interest on leased facility Interest Expense, Lessee, Assets under Capital Lease Other Interest Expense, Other Interest Expense Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Impala Impala [Member] Impala [Member] Honeybee Software Honeybee Software [Member] Honeybee Software [Member] Acquisition Business Acquisition [Line Items] Transaction costs Business Combination, Acquisition Related Costs Decrease in noncontrolling interest Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Increase to Additional Paid in Capital Noncontrolling Interest, Increase to Additional Paid in Capital Noncontrolling Interest, Increase to Additional Paid in Capital Total preliminary consideration transferred Business Combination, Consideration Transferred Borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Proceeds from credit agreement Proceeds from Long-term Lines of Credit Consideration transferred, equity interests issued and issuable Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Total preliminary cash consideration transferred Payments to Acquire Businesses, Gross Additional consideration transferred Business Combination, Additional Consideration Transferred Business Combination, Additional Consideration Transferred Additional consideration transferred, period (in years) Business Combination, Additional Consideration Transferred, Period Business Combination, Additional Consideration Transferred, Period Intangible assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Net working capital Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Working Capital Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Working Capital Potential cash proceeds Business Combination, Potential Cash Proceeds Business Combination, Potential Cash Proceeds Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Decrease in restricted cash Decrease in Restricted Cash Reduction to retained earnings Capitalized contract cost Capitalized Contract Cost, Net Remaining performance obligation Revenue, Remaining Performance Obligation Remaining performance obligation, expected timing of satisfaction, percent Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Percent Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Percent Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Statement of Comprehensive Income [Abstract] Other comprehensive income, 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, Portion Attributable to Parent Unrealized (loss) gain on available for sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Net (loss) income 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. Comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive loss attributable to redeemable noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive loss attributable to Synchronoss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Convertible Senior Notes Unamortized debt issuance costs (1) Debt Issuance Costs, Net Total long-term debt, carrying value Long-term Debt Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] 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 Measurements of Assets and Liabilities Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] 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] Expected maturities 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] 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] 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] Beginning Balance 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 Ending Balance Contract Liabilities Contract with Customer, Liability Revenue recognized that was included in the contract liability (def. revenue) balance at January 1, 2018 Contract with Customer, Liability, Revenue Recognized Increases due to cash received, excluding amounts recognized as revenue during the period Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress Contract Liabilities STI STI [Member] STI [Member] Restricted cash Equity Method Investment, Summarized Financial Information, Restricted Cash and Cash Equivalents, Current Equity Method Investment, Summarized Financial Information, Restricted Cash and Cash Equivalents, Current Accounts receivable Equity Method Investment, Summarized Financial Information, Accounts Receivable, Net, Current Equity Method Investment, Summarized Financial Information, Accounts Receivable, Net, Current Total assets Equity Method Investment, Summarized Financial Information, Assets Accrued expenses Equity Method Investment, Summarized Financial Information, Current Liabilities Total liabilities Equity Method Investment, Summarized Financial Information, Liabilities 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 (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Restructuring Restructuring and Related Activities Disclosure [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation Pending Litigation [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] The Securities Law Actions The Securities Law Actions [Member] The Securities Law Actions [Member] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Earn-out Obligations Under Acquisition Agreement [Member] Represents the contingencies related to provisions under the acquisition agreement. Miyowa Miyowa S A [Member] Represents Miyowa S.A., an acquisition of the entity. Legal Matters Loss Contingencies [Line Items] Number of complaints filed Loss Contingency, New Claims Filed, Number Number of former shareholders (shareholder) Loss Contingency, Number of Plaintiffs Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Convertible Debt Securities Convertible Debt Securities [Member] Employee Stock Option Employee Stock Option [Member] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] 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] Preferred stock dividend Preferred Stock Dividends and Other Adjustments Preferred stock dividend Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Net (loss) income from continuing operations attributable to Synchronoss Interest on Convertible Debt, Net of Tax Income effect for interest on convertible debt, net of tax Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted 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 (shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Shares from assumed conversion of preferred stock Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Options and unvested restricted shares (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Basic (usd per share) Diluted (usd per share) Anti-dilutive stock options excluded (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] 2016 Share Repurchase Program Share Repurchase Program2016 [Member] Information pertaining to February 2016 share repurchase program. Treasury Stock Equity, Class of Treasury Stock [Line Items] Treasury Stock Treasury Stock, Number of Shares and Restriction Disclosures [Abstract] Shares retired Treasury Stock, Shares, Retired Statement of Cash Flows [Abstract] Long-term Debt Long-term Debt [Member] Operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile Net Loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization expense Depreciation, Depletion and Amortization, Net of Impairment Depreciation, Depletion and Amortization, Net of Impairment Change in fair value of financial instruments Fair Value Adjustment of Warrants Accrued PIK interest Paid-in-Kind Interest Income Paid-in-Kind Interest Income Loss (earnings) from equity method investments Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Gain on disposals Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Discontinued operations non-cash and working capital adjustments Discontinued Operations, Non-cash, and Working Capital Adjustments Discontinued Operations, Non-cash, and Working Capital Adjustments Amortization of bond premium Amortization of Debt Discount (Premium) Deferred income taxes Deferred Income Tax Expense (Benefit) Stock-based compensation Share-based Compensation 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 Lease obligation interest payment Repayments of Debt and Capital Lease Obligations Deferred revenues Increase (Decrease) in Deferred Revenue Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Purchases of fixed assets Payments to Acquire Property, Plant, and Equipment Purchases of intangible assets and capitalized software Payments for Software Proceeds from the sale of SpeechCycle Proceeds from Divestiture of Businesses Purchases of marketable securities available for sale Payments to Acquire Available-for-sale Securities Maturity of marketable securities available for sale Proceeds from Sale and Maturity of Available-for-sale Securities Equity investment Proceeds from Sale of Equity Method Investments Investing in discontinued operations Payments to Acquire Interest in Subsidiaries and Affiliates Investment in note receivable Payments to Acquire Loans Receivable Business 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 Financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Share-based compensation-related proceeds, net of taxes paid on withholding shares Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Payments of debt issuance costs Payments of Debt Issuance Costs Proceeds from issuance of long term debt Proceeds from Issuance of Long-term Debt Repayment of long term debt Repayments of Long-term Debt Repayment of revolving line of credit Repayments of Lines of Credit Proceeds from the sale of treasury stock in connection with an employee stock purchase plan Proceeds from Sale of Treasury Stock Proceeds from issuance of preferred stock Proceeds from Issuance of Redeemable Preferred Stock Payments on capital obligations Repayments of Long-term Capital Lease Obligations Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net decrease in cash, restricted cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, restricted cash and cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, restricted cash and cash equivalents, end of period Supplemental disclosures of non-cash investing and financing activities: Supplemental Cash Flow Information [Abstract] Issuance of common stock in connection with Intralinks acquisition Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued Total cash, cash equivalents and restricted cash Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Restricted cash per the Consolidated Balance Sheets Restricted Cash Total cash, cash equivalents and restricted cash Amortized Cost 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 Due after 5 years through 10 years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after 10 years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Total available-for-sale debt securities Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Fair Value 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 Due after 5 years through 10 years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after 10 years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Total available-for-sale debt securities Available-for-sale Securities, Debt Maturities, Single Maturity Date Acquisitions and Divestitures Business Combination Disclosure [Text Block] Securities in unrealized loss position Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Cloud Cloud [Member] Cloud [Member] Digital Digital [Member] Digital [Member] Messaging Messaging [Member] Messaging [Member] Professional Services Professional Services [Member] Professional Services [Member] Transaction Services Transaction Services [Member] Transaction Services [Member] Subscription Services Subscription Services [Member] Subscription Services [Member] License License [Member] License [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Americas Americas [Member] APAC Asia Pacific [Member] EMEA EMEA [Member] Schedule of Debt Schedule of Debt [Table Text Block] Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Equity Method Investments Equity Method Investments [Table Text Block]