3.6.0.2 html 233 389 1 false 74 0 false 6 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.everbridge.com/20161231/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Consolidated Balance Sheets Sheet http://www.everbridge.com/20161231/taxonomy/role/StatementConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 100020 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.everbridge.com/20161231/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Consolidated Statements of Operations and Comprehensive Loss Sheet http://www.everbridge.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLoss Consolidated Statements of Operations and Comprehensive Loss Statements 4 false false R5.htm 100040 - Statement - Consolidated Statements of Stockholders' Equity (Deficit) Sheet http://www.everbridge.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfStockholdersEquityDeficit Consolidated Statements of Stockholders' Equity (Deficit) Statements 5 false false R6.htm 100050 - Statement - Consolidated Statements of Cash Flows Sheet http://www.everbridge.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 100060 - Disclosure - Business and Nature of Operations Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBusinessAndNatureOfOperations Business and Nature of Operations Notes 7 false false R8.htm 100070 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 100080 - Disclosure - Accounts Receivable, Net Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNet Accounts Receivable, Net Notes 9 false false R10.htm 100090 - Disclosure - Property and Equipment Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosurePropertyAndEquipment Property and Equipment Notes 10 false false R11.htm 100100 - Disclosure - Goodwill Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGoodwill Goodwill Notes 11 false false R12.htm 100110 - Disclosure - Fair Value Measurements Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 100120 - Disclosure - Capitalized Software Development Costs Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCosts Capitalized Software Development Costs Notes 13 false false R14.htm 100130 - Disclosure - Intangible Assets Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssets Intangible Assets Notes 14 false false R15.htm 100140 - Disclosure - Income Taxes Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 15 false false R16.htm 100150 - Disclosure - Debt Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureDebt Debt Notes 16 false false R17.htm 100160 - Disclosure - Notes Payable Notes http://www.everbridge.com/20161231/taxonomy/role/DisclosureNotesPayable Notes Payable Notes 17 false false R18.htm 100170 - Disclosure - Stockholders??? Equity (Deficit) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockholdersEquityDeficit Stockholders??? Equity (Deficit) Notes 18 false false R19.htm 100180 - Disclosure - Stock Plans and Stock-Based Compensation Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensation Stock Plans and Stock-Based Compensation Notes 19 false false R20.htm 100190 - Disclosure - Basic and Diluted Net Loss Per Share Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBasicAndDilutedNetLossPerShare Basic and Diluted Net Loss Per Share Notes 20 false false R21.htm 100200 - Disclosure - Segment Information Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSegmentInformation Segment Information Notes 21 false false R22.htm 100210 - Disclosure - Geographic Concentrations Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGeographicConcentrations Geographic Concentrations Notes 22 false false R23.htm 100220 - Disclosure - Employee Benefit Plan Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureEmployeeBenefitPlan Employee Benefit Plan Notes 23 false false R24.htm 100230 - Disclosure - Commitments and Contingencies Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 24 false false R25.htm 100240 - Disclosure - Subsequent Events Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSubsequentEvents Subsequent Events Notes 25 false false R26.htm 100250 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.everbridge.com/20161231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies 26 false false R27.htm 100260 - Disclosure - Accounts Receivable, Net (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNetTables Accounts Receivable, Net (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNet 27 false false R28.htm 100270 - Disclosure - Property and Equipment (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosurePropertyAndEquipmentTables Property and Equipment (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosurePropertyAndEquipment 28 false false R29.htm 100280 - Disclosure - Goodwill (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGoodwillTables Goodwill (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureGoodwill 29 false false R30.htm 100290 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurements 30 false false R31.htm 100300 - Disclosure - Capitalized Software Development Costs (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCostsTables Capitalized Software Development Costs (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCosts 31 false false R32.htm 100310 - Disclosure - Intangible Assets (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssetsTables Intangible Assets (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssets 32 false false R33.htm 100320 - Disclosure - Income Taxes (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxes 33 false false R34.htm 100330 - Disclosure - Stock Plans and Stock-Based Compensation (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationTables Stock Plans and Stock-Based Compensation (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensation 34 false false R35.htm 100340 - Disclosure - Basic and Diluted Net Loss Per Share (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBasicAndDilutedNetLossPerShareTables Basic and Diluted Net Loss Per Share (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureBasicAndDilutedNetLossPerShare 35 false false R36.htm 100350 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables Commitments and Contingencies (Tables) Tables http://www.everbridge.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingencies 36 false false R37.htm 100360 - Disclosure - Business and Nature of Operations - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBusinessAndNatureOfOperationsAdditionalInformationDetails Business and Nature of Operations - Additional Information (Details) Details 37 false false R38.htm 100370 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Summary of Significant Accounting Policies - Additional Information (Detail) Details 38 false false R39.htm 100380 - Disclosure - Accounts Receivable, Net - Schedule of Accounts Receivable Net (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNetScheduleOfAccountsReceivableNetDetails Accounts Receivable, Net - Schedule of Accounts Receivable Net (Details) Details 39 false false R40.htm 100390 - Disclosure - Accounts Receivable, Net - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNetAdditionalInformationDetails Accounts Receivable, Net - Additional Information (Details) Details 40 false false R41.htm 100400 - Disclosure - Accounts Receivable, Net - Schedule of Changes in Allowance for Doubtful Accounts (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureAccountsReceivableNetScheduleOfChangesInAllowanceForDoubtfulAccountsDetails Accounts Receivable, Net - Schedule of Changes in Allowance for Doubtful Accounts (Details) Details 41 false false R42.htm 100410 - Disclosure - Property and Equipment - Schedule of Property and Equipment (Detail) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosurePropertyAndEquipmentScheduleOfPropertyAndEquipmentDetail Property and Equipment - Schedule of Property and Equipment (Detail) Details 42 false false R43.htm 100420 - Disclosure - Property and Equipment - Additional Information (Detail) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosurePropertyAndEquipmentAdditionalInformationDetail Property and Equipment - Additional Information (Detail) Details 43 false false R44.htm 100430 - Disclosure - Goodwill - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGoodwillAdditionalInformationDetails Goodwill - Additional Information (Details) Details 44 false false R45.htm 100440 - Disclosure - Goodwill - Schedule of Changes in Gross Carrying Amount of Goodwill (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGoodwillScheduleOfChangesInGrossCarryingAmountOfGoodwillDetails Goodwill - Schedule of Changes in Gross Carrying Amount of Goodwill (Details) Details 45 false false R46.htm 100450 - Disclosure - Fair Value Measurements - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetails Fair Value Measurements - Additional Information (Details) Details 46 false false R47.htm 100460 - Disclosure - Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Details 47 false false R48.htm 100470 - Disclosure - Fair Value Measurements - Summary of Changes in Level 3 Financial Instruments (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfChangesInLevel3FinancialInstrumentsDetails Fair Value Measurements - Summary of Changes in Level 3 Financial Instruments (Details) Details 48 false false R49.htm 100480 - Disclosure - Capitalized Software Development Costs - Summary of Capitalized Software Development Costs (Detail) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCostsSummaryOfCapitalizedSoftwareDevelopmentCostsDetail Capitalized Software Development Costs - Summary of Capitalized Software Development Costs (Detail) Details 49 false false R50.htm 100490 - Disclosure - Capitalized Software Development Costs - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCostsAdditionalInformationDetails Capitalized Software Development Costs - Additional Information (Details) Details 50 false false R51.htm 100500 - Disclosure - Capitalized Software Development Costs - Schedule of Expected Amortization of Capitalized Software Development Costs (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCapitalizedSoftwareDevelopmentCostsScheduleOfExpectedAmortizationOfCapitalizedSoftwareDevelopmentCostsDetails Capitalized Software Development Costs - Schedule of Expected Amortization of Capitalized Software Development Costs (Details) Details 51 false false R52.htm 100510 - Disclosure - Intangible Assets - Schedule of Finite Lived Intangible Assets (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsDetails Intangible Assets - Schedule of Finite Lived Intangible Assets (Details) Details 52 false false R53.htm 100520 - Disclosure - Intangible Assets - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssetsAdditionalInformationDetails Intangible Assets - Additional Information (Details) Details 53 false false R54.htm 100530 - Disclosure - Intangible Assets - Schedule of Expected Amortization of Intangible Assets (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIntangibleAssetsScheduleOfExpectedAmortizationOfIntangibleAssetsDetails Intangible Assets - Schedule of Expected Amortization of Intangible Assets (Details) Details 54 false false R55.htm 100540 - Disclosure - Income Taxes - Components of Loss before Income Taxes (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesComponentsOfLossBeforeIncomeTaxesDetails Income Taxes - Components of Loss before Income Taxes (Details) Details 55 false false R56.htm 100550 - Disclosure - Income Taxes - Additional information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional information (Details) Details 56 false false R57.htm 100560 - Disclosure - Income Taxes - Reconciliation of Provision for Income Taxes at Statutory Rate and Provision (Benefit) for Income Taxes at Effective Tax Rate (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesReconciliationOfProvisionForIncomeTaxesAtStatutoryRateAndProvisionBenefitForIncomeTaxesAtEffectiveTaxRateDetails Income Taxes - Reconciliation of Provision for Income Taxes at Statutory Rate and Provision (Benefit) for Income Taxes at Effective Tax Rate (Details) Details 57 false false R58.htm 100570 - Disclosure - Income Taxes - Schedule of Provision for (Benefit from) Income Taxes (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfProvisionForBenefitFromIncomeTaxesDetails Income Taxes - Schedule of Provision for (Benefit from) Income Taxes (Details) Details 58 false false R59.htm 100580 - Disclosure - Income Taxes - Schedule of Net Deferred Tax Assets (Liabilities) (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfNetDeferredTaxAssetsLiabilitiesDetails Income Taxes - Schedule of Net Deferred Tax Assets (Liabilities) (Details) Details 59 false false R60.htm 100590 - Disclosure - Income Taxes - Schedule of Changes in Unrecognized Tax Benefits (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfChangesInUnrecognizedTaxBenefitsDetails Income Taxes - Schedule of Changes in Unrecognized Tax Benefits (Details) Details 60 false false R61.htm 100600 - Disclosure - Debt - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureDebtAdditionalInformationDetails Debt - Additional Information (Details) Details 61 false false R62.htm 100610 - Disclosure - Notes Payable - Additional Information (Detail) Notes http://www.everbridge.com/20161231/taxonomy/role/DisclosureNotesPayableAdditionalInformationDetail Notes Payable - Additional Information (Detail) Details 62 false false R63.htm 100620 - Disclosure - Stockholders' Equity (Deficit) - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockholdersEquityDeficitAdditionalInformationDetails Stockholders' Equity (Deficit) - Additional Information (Details) Details 63 false false R64.htm 100630 - Disclosure - Stock Plans and Stock-Based Compensation - 2008 and 2016 Plan - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensation2008And2016PlanAdditionalInformationDetails Stock Plans and Stock-Based Compensation - 2008 and 2016 Plan - Additional Information (Details) Details 64 false false R65.htm 100640 - Disclosure - Stock Plans and Stock-Based Compensation - Employee Stock Purchase Plan - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationEmployeeStockPurchasePlanAdditionalInformationDetails Stock Plans and Stock-Based Compensation - Employee Stock Purchase Plan - Additional Information (Details) Details 65 false false R66.htm 100650 - Disclosure - Stock Plans and Stock-Based Compensation - Stock Options - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationStockOptionsAdditionalInformationDetails Stock Plans and Stock-Based Compensation - Stock Options - Additional Information (Details) Details 66 false false R67.htm 100660 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfAssumptionsUsedInDeterminingFairValueOfStockOptionGrantsDetails Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Details) Details 67 false false R68.htm 100670 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Parenthetical) (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfAssumptionsUsedInDeterminingFairValueOfStockOptionGrantsParentheticalDetails Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Parenthetical) (Details) Details 68 false false R69.htm 100680 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Stock Option Activity (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfStockOptionActivityDetails Stock Plans and Stock-Based Compensation - Schedule of Stock Option Activity (Details) Details 69 false false R70.htm 100690 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Stock Options Outstanding and Options Exercisable and Vested (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfStockOptionsOutstandingAndOptionsExercisableAndVestedDetails Stock Plans and Stock-Based Compensation - Schedule of Stock Options Outstanding and Options Exercisable and Vested (Details) Details 70 false false R71.htm 100700 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Vested and Nonvested Stock Option Activity (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfVestedAndNonvestedStockOptionActivityDetails Stock Plans and Stock-Based Compensation - Schedule of Vested and Nonvested Stock Option Activity (Details) Details 71 false false R72.htm 100710 - Disclosure - Stock Plans and Stock-Based Compensation - Schedule of Classification of Stock-Based Compensation Relating to Stock Options and RSAs (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureStockPlansAndStockBasedCompensationScheduleOfClassificationOfStockBasedCompensationRelatingToStockOptionsAndRsasDetails Stock Plans and Stock-Based Compensation - Schedule of Classification of Stock-Based Compensation Relating to Stock Options and RSAs (Details) Details 72 false false R73.htm 100720 - Disclosure - Basic and Diluted Net Loss Per Share - Schedule of Common Equivalent Shares were Excluded From Diluted Net Loss Per Share Calculation because their Inclusion would have been Anti-Dilutive (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBasicAndDilutedNetLossPerShareScheduleOfCommonEquivalentSharesWereExcludedFromDilutedNetLossPerShareCalculationBecauseTheirInclusionWouldHaveBeenAntiDilutiveDetails Basic and Diluted Net Loss Per Share - Schedule of Common Equivalent Shares were Excluded From Diluted Net Loss Per Share Calculation because their Inclusion would have been Anti-Dilutive (Details) Details 73 false false R74.htm 100730 - Disclosure - Basic and Diluted Net Loss Per Share - Summary of Common Stock Reserved (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureBasicAndDilutedNetLossPerShareSummaryOfCommonStockReservedDetails Basic and Diluted Net Loss Per Share - Summary of Common Stock Reserved (Details) Details 74 false false R75.htm 100740 - Disclosure - Segment Information - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSegmentInformationAdditionalInformationDetails Segment Information - Additional Information (Details) Details 75 false false R76.htm 100750 - Disclosure - Geographic Concentrations - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureGeographicConcentrationsAdditionalInformationDetails Geographic Concentrations - Additional Information (Details) Details 76 false false R77.htm 100760 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Lease Payments (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfFutureMinimumLeasePaymentsDetails Commitments and Contingencies - Schedule of Future Minimum Lease Payments (Details) Details 77 false false R78.htm 100770 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 78 false false R79.htm 100780 - Disclosure - Subsequent Events - Additional Information (Details) Sheet http://www.everbridge.com/20161231/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails Subsequent Events - Additional Information (Details) Details 79 false false All Reports Book All Reports evbg-20161231.xml evbg-20161231.xsd evbg-20161231_cal.xml evbg-20161231_def.xml evbg-20161231_lab.xml evbg-20161231_pre.xml true true