3.21.1 html 173 417 1 false 74 0 false 6 false false R1.htm 0001001 - Document - Cover Page Sheet http://synacor.com/role/CoverPage Cover Page Cover 1 false false R2.htm 1001002 - Statement - Consolidated Balance Sheets Sheet http://synacor.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 1002003 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://synacor.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 1003004 - Statement - Consolidated Statements of Operations Sheet http://synacor.com/role/ConsolidatedStatementsofOperations Consolidated Statements of Operations Statements 4 false false R5.htm 1004005 - Statement - Consolidated Statements of Comprehensive Loss Sheet http://synacor.com/role/ConsolidatedStatementsofComprehensiveLoss Consolidated Statements of Comprehensive Loss Statements 5 false false R6.htm 1005006 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://synacor.com/role/ConsolidatedStatementsofStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 6 false false R7.htm 1006007 - Statement - Consolidated Statements of Cash Flows Sheet http://synacor.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 7 false false R8.htm 2101101 - Disclosure - The Company and Summary of Significant Accounting Policies Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPolicies The Company and Summary of Significant Accounting Policies Notes 8 false false R9.htm 2112102 - Disclosure - Revenue from Contracts with Customers Sheet http://synacor.com/role/RevenuefromContractswithCustomers Revenue from Contracts with Customers Notes 9 false false R10.htm 2118103 - Disclosure - Property and Equipment-Net Sheet http://synacor.com/role/PropertyandEquipmentNet Property and Equipment-Net Notes 10 false false R11.htm 2124104 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 11 false false R12.htm 2129105 - Disclosure - Long-Term Debt Sheet http://synacor.com/role/LongTermDebt Long-Term Debt Notes 12 false false R13.htm 2131106 - Disclosure - Income Taxes Sheet http://synacor.com/role/IncomeTaxes Income Taxes Notes 13 false false R14.htm 2138107 - Disclosure - Segment Information Sheet http://synacor.com/role/SegmentInformation Segment Information Notes 14 false false R15.htm 2143108 - Disclosure - Commitments and Contingencies Sheet http://synacor.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 15 false false R16.htm 2144109 - Disclosure - Leases Sheet http://synacor.com/role/Leases Leases Notes 16 false false R17.htm 2150110 - Disclosure - Equity Sheet http://synacor.com/role/Equity Equity Notes 17 false false R18.htm 2152111 - Disclosure - Stock-based Compensation Sheet http://synacor.com/role/StockbasedCompensation Stock-based Compensation Notes 18 false false R19.htm 2160112 - Disclosure - Net Loss Per Common Share Data Sheet http://synacor.com/role/NetLossPerCommonShareData Net Loss Per Common Share Data Notes 19 false false R20.htm 2163113 - Disclosure - Subsequent Events Sheet http://synacor.com/role/SubsequentEvents Subsequent Events Notes 20 false false R21.htm 2202201 - Disclosure - The Company and Summary of Significant Accounting Policies (Policies) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies The Company and Summary of Significant Accounting Policies (Policies) Policies http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPolicies 21 false false R22.htm 2303301 - Disclosure - The Company and Summary of Significant Accounting Policies (Tables) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesTables The Company and Summary of Significant Accounting Policies (Tables) Tables http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPolicies 22 false false R23.htm 2313302 - Disclosure - Revenue from Contracts with Customers (Tables) Sheet http://synacor.com/role/RevenuefromContractswithCustomersTables Revenue from Contracts with Customers (Tables) Tables http://synacor.com/role/RevenuefromContractswithCustomers 23 false false R24.htm 2319303 - Disclosure - Property and Equipment-Net (Tables) Sheet http://synacor.com/role/PropertyandEquipmentNetTables Property and Equipment-Net (Tables) Tables http://synacor.com/role/PropertyandEquipmentNet 24 false false R25.htm 2325304 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilities 25 false false R26.htm 2332305 - Disclosure - Income Taxes (Tables) Sheet http://synacor.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://synacor.com/role/IncomeTaxes 26 false false R27.htm 2339306 - Disclosure - Segment Information - Summary of Financial Information for Reportable Segments (Tables) Sheet http://synacor.com/role/SegmentInformationSummaryofFinancialInformationforReportableSegmentsTables Segment Information - Summary of Financial Information for Reportable Segments (Tables) Tables 27 false false R28.htm 2345307 - Disclosure - Leases (Tables) Sheet http://synacor.com/role/LeasesTables Leases (Tables) Tables http://synacor.com/role/Leases 28 false false R29.htm 2353308 - Disclosure - Stock-based Compensation (Tables) Sheet http://synacor.com/role/StockbasedCompensationTables Stock-based Compensation (Tables) Tables http://synacor.com/role/StockbasedCompensation 29 false false R30.htm 2361309 - Disclosure - Net Loss Per Common Share Data (Tables) Sheet http://synacor.com/role/NetLossPerCommonShareDataTables Net Loss Per Common Share Data (Tables) Tables http://synacor.com/role/NetLossPerCommonShareData 30 false false R31.htm 2404401 - Disclosure - The Company and Summary of Significant Accounting Policies - Basis of Presentation and Cash, Cash Equivalents And Restricted Cash (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesBasisofPresentationandCashCashEquivalentsAndRestrictedCashDetails The Company and Summary of Significant Accounting Policies - Basis of Presentation and Cash, Cash Equivalents And Restricted Cash (Details) Details 31 false false R32.htm 2405402 - Disclosure - The Company and Summary of Significant Accounting Policies - Useful Lives of Property and Equipment (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesUsefulLivesofPropertyandEquipmentDetails The Company and Summary of Significant Accounting Policies - Useful Lives of Property and Equipment (Details) Details 32 false false R33.htm 2406403 - Disclosure - The Company and Summary of Significant Accounting Policies - Summary of Components and Original Estimated Economic Lives of Amortizable Intangible Assets (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesSummaryofComponentsandOriginalEstimatedEconomicLivesofAmortizableIntangibleAssetsDetails The Company and Summary of Significant Accounting Policies - Summary of Components and Original Estimated Economic Lives of Amortizable Intangible Assets (Details) Details 33 false false R34.htm 2407404 - Disclosure - The Company and Summary of Significant Accounting Policies - Other Intangible Assets (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesOtherIntangibleAssetsDetails The Company and Summary of Significant Accounting Policies - Other Intangible Assets (Details) Details 34 false false R35.htm 2408405 - Disclosure - The Company and Summary of Significant Accounting Policies - Schedule of Change in Goodwill (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesScheduleofChangeinGoodwillDetails The Company and Summary of Significant Accounting Policies - Schedule of Change in Goodwill (Details) Details 35 false false R36.htm 2409406 - Disclosure - The Company and Summary of Significant Accounting Policies - Schedule of Concentrations Equal to or Exceeding 10% of Company's Accounts Receivable, Revenue, and Cost of Revenue (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesScheduleofConcentrationsEqualtoorExceeding10ofCompanysAccountsReceivableRevenueandCostofRevenueDetails The Company and Summary of Significant Accounting Policies - Schedule of Concentrations Equal to or Exceeding 10% of Company's Accounts Receivable, Revenue, and Cost of Revenue (Details) Details 36 false false R37.htm 2410407 - Disclosure - The Company and Summary of Significant Accounting Policies - Sales and Marketing (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesSalesandMarketingDetails The Company and Summary of Significant Accounting Policies - Sales and Marketing (Details) Details 37 false false R38.htm 2411408 - Disclosure - The Company and Summary of Significant Accounting Policies - Employee Benefit Plan (Details) Sheet http://synacor.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesEmployeeBenefitPlanDetails The Company and Summary of Significant Accounting Policies - Employee Benefit Plan (Details) Details 38 false false R39.htm 2414409 - Disclosure - Revenue from Contracts with Customers Revenue from Contract with Customer - Summary of Timing of Revenue Recognition, Includes Reconciliation of Disaggregated by Reportable Segment (Detail) Sheet http://synacor.com/role/RevenuefromContractswithCustomersRevenuefromContractwithCustomerSummaryofTimingofRevenueRecognitionIncludesReconciliationofDisaggregatedbyReportableSegmentDetail Revenue from Contracts with Customers Revenue from Contract with Customer - Summary of Timing of Revenue Recognition, Includes Reconciliation of Disaggregated by Reportable Segment (Detail) Details 39 false false R40.htm 2415410 - Disclosure - Revenue from Contracts with Customers - Schedule of Revenue Disaggregated by Geographic Segment (Detail) Sheet http://synacor.com/role/RevenuefromContractswithCustomersScheduleofRevenueDisaggregatedbyGeographicSegmentDetail Revenue from Contracts with Customers - Schedule of Revenue Disaggregated by Geographic Segment (Detail) Details 40 false false R41.htm 2416411 - Disclosure - Revenue from Contracts with Customers - Schedule of Changes in Deferred Revenue, Inclusive of Both Current and Long-term (Detail) Sheet http://synacor.com/role/RevenuefromContractswithCustomersScheduleofChangesinDeferredRevenueInclusiveofBothCurrentandLongtermDetail Revenue from Contracts with Customers - Schedule of Changes in Deferred Revenue, Inclusive of Both Current and Long-term (Detail) Details 41 false false R42.htm 2417412 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations - Additional Information (Detail) Sheet http://synacor.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsAdditionalInformationDetail Revenue from Contracts with Customers - Remaining Performance Obligations - Additional Information (Detail) Details 42 false false R43.htm 2420413 - Disclosure - Property and Equipment-Net - Schedule of Property and Equipment (Details) Sheet http://synacor.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentDetails Property and Equipment-Net - Schedule of Property and Equipment (Details) Details 43 false false R44.htm 2421414 - Disclosure - Property and Equipment-Net - Additional Information (Details) Sheet http://synacor.com/role/PropertyandEquipmentNetAdditionalInformationDetails Property and Equipment-Net - Additional Information (Details) Details 44 false false R45.htm 2422415 - Disclosure - Property and Equipment-Net - Schedule of Impairment Intangible Assets (Details) Sheet http://synacor.com/role/PropertyandEquipmentNetScheduleofImpairmentIntangibleAssetsDetails Property and Equipment-Net - Schedule of Impairment Intangible Assets (Details) Details 45 false false R46.htm 2423416 - Disclosure - Property and Equipment-Net - Schedule of Long Lived Tangible Assets by Geographic Area (Detail) Sheet http://synacor.com/role/PropertyandEquipmentNetScheduleofLongLivedTangibleAssetsbyGeographicAreaDetail Property and Equipment-Net - Schedule of Long Lived Tangible Assets by Geographic Area (Detail) Details 46 false false R47.htm 2426417 - Disclosure - Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) Sheet http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedExpensesandOtherCurrentLiabilitiesDetails Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) Details 47 false false R48.htm 2427418 - Disclosure - Accrued Expenses and Other Current Liabilities - Additional Information (Details) Sheet http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilitiesAdditionalInformationDetails Accrued Expenses and Other Current Liabilities - Additional Information (Details) Details 48 false false R49.htm 2428419 - Disclosure - Accrued Expenses and Other Current Liabilities - Summary of Accrued Severance Costs (Details) Sheet http://synacor.com/role/AccruedExpensesandOtherCurrentLiabilitiesSummaryofAccruedSeveranceCostsDetails Accrued Expenses and Other Current Liabilities - Summary of Accrued Severance Costs (Details) Details 49 false false R50.htm 2430420 - Disclosure - Long-term Debt - Additional Information (Details) Sheet http://synacor.com/role/LongtermDebtAdditionalInformationDetails Long-term Debt - Additional Information (Details) Details 50 false false R51.htm 2433421 - Disclosure - Income Taxes - Schedule of Income (Loss) Before Income Tax Expense (Details) Sheet http://synacor.com/role/IncomeTaxesScheduleofIncomeLossBeforeIncomeTaxExpenseDetails Income Taxes - Schedule of Income (Loss) Before Income Tax Expense (Details) Details 51 false false R52.htm 2434422 - Disclosure - Income Taxes - Schedule of Provision (benefit) for Income Taxes (Details) Sheet http://synacor.com/role/IncomeTaxesScheduleofProvisionbenefitforIncomeTaxesDetails Income Taxes - Schedule of Provision (benefit) for Income Taxes (Details) Details 52 false false R53.htm 2435423 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Sheet http://synacor.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Details 53 false false R54.htm 2436424 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://synacor.com/role/IncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 54 false false R55.htm 2437425 - Disclosure - Income Taxes - Schedule of Effective Income Tax Expense (Details) Sheet http://synacor.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxExpenseDetails Income Taxes - Schedule of Effective Income Tax Expense (Details) Details 55 false false R56.htm 2440426 - Disclosure - Segment Information - Additional Information (Details) Sheet http://synacor.com/role/SegmentInformationAdditionalInformationDetails Segment Information - Additional Information (Details) Details 56 false false R57.htm 2441427 - Disclosure - Segment Information - Schedule of Revenue and Long Lived Tangible Assets by Geographic Area (Details) Sheet http://synacor.com/role/SegmentInformationScheduleofRevenueandLongLivedTangibleAssetsbyGeographicAreaDetails Segment Information - Schedule of Revenue and Long Lived Tangible Assets by Geographic Area (Details) Details 57 false false R58.htm 2442428 - Disclosure - Segment Information - Reconciliation of Total Segment Adjusted EBITDA to Net Loss (Detail) Sheet http://synacor.com/role/SegmentInformationReconciliationofTotalSegmentAdjustedEBITDAtoNetLossDetail Segment Information - Reconciliation of Total Segment Adjusted EBITDA to Net Loss (Detail) Details 58 false false R59.htm 2446429 - Disclosure - Leases - Schedule of Components of Lease Costs, Lease Term and Discount Rate (Detail) Sheet http://synacor.com/role/LeasesScheduleofComponentsofLeaseCostsLeaseTermandDiscountRateDetail Leases - Schedule of Components of Lease Costs, Lease Term and Discount Rate (Detail) Details 59 false false R60.htm 2447430 - Disclosure - Leases - Schedule of Maturities of Operating and Finance Leases Liabilities (Detail) Sheet http://synacor.com/role/LeasesScheduleofMaturitiesofOperatingandFinanceLeasesLiabilitiesDetail Leases - Schedule of Maturities of Operating and Finance Leases Liabilities (Detail) Details 60 false false R61.htm 2448431 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) Sheet http://synacor.com/role/LeasesScheduleofSupplementalCashFlowInformationRelatedtoLeasesDetail Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) Details 61 false false R62.htm 2449432 - Disclosure - Leases - Narrative (Details) Sheet http://synacor.com/role/LeasesNarrativeDetails Leases - Narrative (Details) Details 62 false false R63.htm 2451433 - Disclosure - Equity - Additional Information (Details) Sheet http://synacor.com/role/EquityAdditionalInformationDetails Equity - Additional Information (Details) Details 63 false false R64.htm 2454434 - Disclosure - Stock-based Compensation - Schedule of Weighted-Average Assumptions Used to Estimate the Fair Value of Options Granted (Details) Sheet http://synacor.com/role/StockbasedCompensationScheduleofWeightedAverageAssumptionsUsedtoEstimatetheFairValueofOptionsGrantedDetails Stock-based Compensation - Schedule of Weighted-Average Assumptions Used to Estimate the Fair Value of Options Granted (Details) Details 64 false false R65.htm 2455435 - Disclosure - Stock-based Compensation - Additional Information (Details) Sheet http://synacor.com/role/StockbasedCompensationAdditionalInformationDetails Stock-based Compensation - Additional Information (Details) Details 65 false false R66.htm 2456436 - Disclosure - Stock-based Compensation - Schedule of Total Stock Based Compensation Expense (Details) Sheet http://synacor.com/role/StockbasedCompensationScheduleofTotalStockBasedCompensationExpenseDetails Stock-based Compensation - Schedule of Total Stock Based Compensation Expense (Details) Details 66 false false R67.htm 2457437 - Disclosure - Stock-based Compensation - Summary of Stock Option Activity (Details) Sheet http://synacor.com/role/StockbasedCompensationSummaryofStockOptionActivityDetails Stock-based Compensation - Summary of Stock Option Activity (Details) Details 67 false false R68.htm 2458438 - Disclosure - Stock-based Compensation - Summary of RSU Activity (Details) Sheet http://synacor.com/role/StockbasedCompensationSummaryofRSUActivityDetails Stock-based Compensation - Summary of RSU Activity (Details) Details 68 false false R69.htm 2459439 - Disclosure - Stock-based Compensation - Summary of PSU Activity (Details) Sheet http://synacor.com/role/StockbasedCompensationSummaryofPSUActivityDetails Stock-based Compensation - Summary of PSU Activity (Details) Details 69 false false R70.htm 2462440 - Disclosure - Net Loss Per Common Share Data - Schedule of Equivalent Shares Excluded from Calculation of Diluted Net Loss Per Share (Details) Sheet http://synacor.com/role/NetLossPerCommonShareDataScheduleofEquivalentSharesExcludedfromCalculationofDilutedNetLossPerShareDetails Net Loss Per Common Share Data - Schedule of Equivalent Shares Excluded from Calculation of Diluted Net Loss Per Share (Details) Details 70 false false R71.htm 2464441 - Disclosure - Subsequent Events (Details) Sheet http://synacor.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://synacor.com/role/SubsequentEvents 71 false false All Reports Book All Reports sync-20201231.htm sync-20201231.xsd sync-20201231_cal.xml sync-20201231_def.xml sync-20201231_lab.xml sync-20201231_pre.xml sync-20201231xexhibit211.htm sync-20201231xexhibit231.htm sync-20201231xexhibit232.htm sync-20201231xexhibit321.htm sync-20201231xexx311.htm sync-20201231xexx312.htm sync-20201231_g1.jpg http://fasb.org/srt/2020-01-31 http://fasb.org/us-gaap/2020-01-31 http://xbrl.sec.gov/country/2020-01-31 http://xbrl.sec.gov/dei/2020-01-31 true true