3.22.1 html 422 450 1 false 113 0 false 7 false false R1.htm 00090 - Document - Cover Sheet http://www.wejo.com/role/DocumentCover Cover Cover 1 false false R2.htm 00100 - Statement - Condensed Consolidated Balance Sheets Sheet http://www.wejo.com/role/StatementCondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 00105 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://www.wejo.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 00200 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss Sheet http://www.wejo.com/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss Condensed Consolidated Statements of Operations and Comprehensive Loss Statements 4 false false R5.htm 00205 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (Parentheticals) Sheet http://www.wejo.com/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossParentheticals Condensed Consolidated Statements of Operations and Comprehensive Loss (Parentheticals) Statements 5 false false R6.htm 00300 - Statement - Consolidated Statements of Shareholders' Deficit Sheet http://www.wejo.com/role/StatementConsolidatedStatementsOfShareholdersDeficit Consolidated Statements of Shareholders' Deficit Statements 6 false false R7.htm 00305 - Statement - Consolidated Statements of Shareholders' Deficit (Parenthetical) Sheet http://www.wejo.com/role/StatementConsolidatedStatementsOfShareholdersDeficitParenthetical Consolidated Statements of Shareholders' Deficit (Parenthetical) Statements 7 false false R8.htm 00400 - Statement - Condensed Consolidated Statement of Cash Flows Sheet http://www.wejo.com/role/StatementCondensedConsolidatedStatementOfCashFlows Condensed Consolidated Statement of Cash Flows Statements 8 false false R9.htm 10101 - Disclosure - Description of the Business Sheet http://www.wejo.com/role/DisclosureDescriptionOfBusiness Description of the Business Notes 9 false false R10.htm 10201 - Disclosure - Restatement Sheet http://www.wejo.com/role/DisclosureRestatement Restatement Notes 10 false false R11.htm 10301 - Disclosure - Transactions Sheet http://www.wejo.com/role/DisclosureTransactions Transactions Notes 11 false false R12.htm 10401 - Disclosure - Summary of Significant Policies Sheet http://www.wejo.com/role/DisclosureSummaryOfSignificantPolicies Summary of Significant Policies Notes 12 false false R13.htm 10501 - Disclosure - Fair Value Measurement Sheet http://www.wejo.com/role/DisclosureFairValueMeasurement Fair Value Measurement Notes 13 false false R14.htm 10601 - Disclosure - Revenue from Customers Sheet http://www.wejo.com/role/DisclosureRevenueFromCustomers Revenue from Customers Notes 14 false false R15.htm 10701 - Disclosure - Forward Purchase Agreement Sheet http://www.wejo.com/role/DisclosureForwardPurchaseAgreement Forward Purchase Agreement Notes 15 false false R16.htm 10801 - Disclosure - Prepaid and Other Current Assets Sheet http://www.wejo.com/role/DisclosurePrepaidAndOtherCurrentAssets Prepaid and Other Current Assets Notes 16 false false R17.htm 10901 - Disclosure - Property and Equipment, Net Sheet http://www.wejo.com/role/DisclosurePropertyAndEquipmentNet Property and Equipment, Net Notes 17 false false R18.htm 11001 - Disclosure - Intangible Assets Sheet http://www.wejo.com/role/DisclosureIntangibleAssets Intangible Assets Notes 18 false false R19.htm 11101 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://www.wejo.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 19 false false R20.htm 11201 - Disclosure - Advanced Subscription Agreements (As Restated) Sheet http://www.wejo.com/role/DisclosureAdvancedSubscriptionAgreementsAsRestated Advanced Subscription Agreements (As Restated) Notes 20 false false R21.htm 11301 - Disclosure - Convertible Loans (As Restated) Sheet http://www.wejo.com/role/DisclosureConvertibleLoansAsRestated Convertible Loans (As Restated) Notes 21 false false R22.htm 11401 - Disclosure - Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs Sheet http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCosts Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs Notes 22 false false R23.htm 11501 - Disclosure - Warrants Sheet http://www.wejo.com/role/DisclosureWarrants Warrants Notes 23 false false R24.htm 11601 - Disclosure - Exchangeable Right Liability Sheet http://www.wejo.com/role/DisclosureExchangeableRightLiability Exchangeable Right Liability Notes 24 false false R25.htm 11701 - Disclosure - Shareholders' Equity (Deficit) Sheet http://www.wejo.com/role/DisclosureShareholdersEquityDeficit Shareholders' Equity (Deficit) Notes 25 false false R26.htm 11801 - Disclosure - Share-Based Compensation Sheet http://www.wejo.com/role/DisclosureShareBasedCompensation Share-Based Compensation Notes 26 false false R27.htm 11901 - Disclosure - Income Taxes Sheet http://www.wejo.com/role/DisclosureIncomeTaxes Income Taxes Notes 27 false false R28.htm 12001 - Disclosure - Net Loss Per Share Sheet http://www.wejo.com/role/DisclosureNetLossPerShare Net Loss Per Share Notes 28 false false R29.htm 12101 - Disclosure - Employee Benefit Plans Sheet http://www.wejo.com/role/DisclosureEmployeeBenefitPlans Employee Benefit Plans Notes 29 false false R30.htm 12201 - Disclosure - Commitment and Contingencies Sheet http://www.wejo.com/role/DisclosureCommitmentAndContingencies Commitment and Contingencies Notes 30 false false R31.htm 12301 - Disclosure - Restructuring Sheet http://www.wejo.com/role/DisclosureRestructuring Restructuring Notes 31 false false R32.htm 12401 - Disclosure - Related Party Transactions Sheet http://www.wejo.com/role/DisclosureRelatedPartyTransactions Related Party Transactions Notes 32 false false R33.htm 12501 - Disclosure - Subsequent Events Sheet http://www.wejo.com/role/DisclosureSubsequentEvents Subsequent Events Notes 33 false false R34.htm 20402 - Disclosure - Summary of Significant Policies (Policies) Sheet http://www.wejo.com/role/DisclosureSummaryOfSignificantPoliciesPolicies Summary of Significant Policies (Policies) Policies 34 false false R35.htm 30203 - Disclosure - Restatement (Tables) Sheet http://www.wejo.com/role/DisclosureRestatementTables Restatement (Tables) Tables http://www.wejo.com/role/DisclosureRestatement 35 false false R36.htm 30403 - Disclosure - Summary of Significant Policies (Tables) Sheet http://www.wejo.com/role/DisclosureSummaryOfSignificantPoliciesTables Summary of Significant Policies (Tables) Tables http://www.wejo.com/role/DisclosureSummaryOfSignificantPolicies 36 false false R37.htm 30503 - Disclosure - Fair Value Measurement (Tables) Sheet http://www.wejo.com/role/DisclosureFairValueMeasurementTables Fair Value Measurement (Tables) Tables http://www.wejo.com/role/DisclosureFairValueMeasurement 37 false false R38.htm 30803 - Disclosure - Prepaid and Other Current Assets (Tables) Sheet http://www.wejo.com/role/DisclosurePrepaidAndOtherCurrentAssetsTables Prepaid and Other Current Assets (Tables) Tables http://www.wejo.com/role/DisclosurePrepaidAndOtherCurrentAssets 38 false false R39.htm 30903 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.wejo.com/role/DisclosurePropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.wejo.com/role/DisclosurePropertyAndEquipmentNet 39 false false R40.htm 31003 - Disclosure - Intangible Assets (Tables) Sheet http://www.wejo.com/role/DisclosureIntangibleAssetsTables Intangible Assets (Tables) Tables http://www.wejo.com/role/DisclosureIntangibleAssets 40 false false R41.htm 31103 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://www.wejo.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://www.wejo.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities 41 false false R42.htm 31203 - Disclosure - Exchangeable Right Liability (Tables) Sheet http://www.wejo.com/role/DisclosureExchangeableRightLiabilityTables Exchangeable Right Liability (Tables) Tables http://www.wejo.com/role/DisclosureExchangeableRightLiability 42 false false R43.htm 31303 - Disclosure - Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs (Tables) Sheet http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCostsTables Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs (Tables) Tables http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCosts 43 false false R44.htm 31503 - Disclosure - Warrants (Tables) Sheet http://www.wejo.com/role/DisclosureWarrantsTables Warrants (Tables) Tables http://www.wejo.com/role/DisclosureWarrants 44 false false R45.htm 31803 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationTables Share-Based Compensation (Tables) Tables http://www.wejo.com/role/DisclosureShareBasedCompensation 45 false false R46.htm 31903 - Disclosure - Income Taxes (Tables) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.wejo.com/role/DisclosureIncomeTaxes 46 false false R47.htm 32003 - Disclosure - Net Loss Per Share (Tables) Sheet http://www.wejo.com/role/DisclosureNetLossPerShareTables Net Loss Per Share (Tables) Tables http://www.wejo.com/role/DisclosureNetLossPerShare 47 false false R48.htm 32203 - Disclosure - Commitment and Contingencies (Tables) Sheet http://www.wejo.com/role/DisclosureCommitmentAndContingenciesTables Commitment and Contingencies (Tables) Tables http://www.wejo.com/role/DisclosureCommitmentAndContingencies 48 false false R49.htm 32303 - Disclosure - Restructuring (Tables) Sheet http://www.wejo.com/role/DisclosureRestructuringTables Restructuring (Tables) Tables http://www.wejo.com/role/DisclosureRestructuring 49 false false R50.htm 40101 - Disclosure - Description of the Business - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureDescriptionOfBusinessNarrativeDetails Description of the Business - Narrative (Details) Details 50 false false R51.htm 40201 - Disclosure - Restatement - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureRestatementNarrativeDetails Restatement - Narrative (Details) Details 51 false false R52.htm 40202 - Disclosure - Restatement - Balance Sheet Restatement Adjustments (Details) Sheet http://www.wejo.com/role/DisclosureRestatementBalanceSheetRestatementAdjustmentsDetails Restatement - Balance Sheet Restatement Adjustments (Details) Details 52 false false R53.htm 40203 - Disclosure - Restatement -Statement of Operation and Comprehensive loss Restatement Adjustments (Details) Sheet http://www.wejo.com/role/DisclosureRestatementStatementOfOperationAndComprehensiveLossRestatementAdjustmentsDetails Restatement -Statement of Operation and Comprehensive loss Restatement Adjustments (Details) Details 53 false false R54.htm 40204 - Disclosure - Restatement - Statement of Cash Flow (Details) Sheet http://www.wejo.com/role/DisclosureRestatementStatementOfCashFlowDetails Restatement - Statement of Cash Flow (Details) Details 54 false false R55.htm 40301 - Disclosure - Transactions - Reorganization and Recapitalization (Details) Sheet http://www.wejo.com/role/DisclosureTransactionsReorganizationAndRecapitalizationDetails Transactions - Reorganization and Recapitalization (Details) Details 55 false false R56.htm 40302 - Disclosure - Transactions - Public Warrants (Details) Sheet http://www.wejo.com/role/DisclosureTransactionsPublicWarrantsDetails Transactions - Public Warrants (Details) Details 56 false false R57.htm 40303 - Disclosure - Transaction - Earnout Shares (Details) Sheet http://www.wejo.com/role/DisclosureTransactionEarnoutSharesDetails Transaction - Earnout Shares (Details) Details 57 false false R58.htm 40304 - Disclosure - Transaction -Forward Purchase Agreement (Details) Sheet http://www.wejo.com/role/DisclosureTransactionForwardPurchaseAgreementDetails Transaction -Forward Purchase Agreement (Details) Details 58 false false R59.htm 40401 - Disclosure - Summary of Significant Policies - Narratives (Details) Sheet http://www.wejo.com/role/DisclosureSummaryOfSignificantPoliciesNarrativesDetails Summary of Significant Policies - Narratives (Details) Details 59 false false R60.htm 40402 - Disclosure - Summary of Significant Policies - Property and Equipment (Details) Sheet http://www.wejo.com/role/DisclosureSummaryOfSignificantPoliciesPropertyAndEquipmentDetails Summary of Significant Policies - Property and Equipment (Details) Details 60 false false R61.htm 40501 - Disclosure - Fair Value Measurement - Fair Value, Liabilities Measured on Recurring Basis (Details) Sheet http://www.wejo.com/role/DisclosureFairValueMeasurementFairValueLiabilitiesMeasuredOnRecurringBasisDetails Fair Value Measurement - Fair Value, Liabilities Measured on Recurring Basis (Details) Details 61 false false R62.htm 40502 - Disclosure - Fair Value Measurement - Aggregate Fair Value of Advanced Subscription Agreements, Derivative Liability, Warrant Liability and Derivative Liability (Details) Sheet http://www.wejo.com/role/DisclosureFairValueMeasurementAggregateFairValueOfAdvancedSubscriptionAgreementsDerivativeLiabilityWarrantLiabilityAndDerivativeLiabilityDetails Fair Value Measurement - Aggregate Fair Value of Advanced Subscription Agreements, Derivative Liability, Warrant Liability and Derivative Liability (Details) Details 62 false false R63.htm 40503 - Disclosure - Fair Value Measurement - Valuation Of Advanced Subscription Agreements And Derivative Liability (Details) Sheet http://www.wejo.com/role/DisclosureFairValueMeasurementValuationOfAdvancedSubscriptionAgreementsAndDerivativeLiabilityDetails Fair Value Measurement - Valuation Of Advanced Subscription Agreements And Derivative Liability (Details) Details 63 false false R64.htm 40601 - Disclosure - Revenue from Customers - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureRevenueFromCustomersNarrativeDetails Revenue from Customers - Narrative (Details) Details 64 false false R65.htm 40701 - Disclosure - Forward Purchase Agreement (Details) Sheet http://www.wejo.com/role/DisclosureForwardPurchaseAgreementDetails Forward Purchase Agreement (Details) Details http://www.wejo.com/role/DisclosureForwardPurchaseAgreement 65 false false R66.htm 40801 - Disclosure - Prepaid and Other Current Assets - Schedule of Prepaid and Other Current Assets (Details) Sheet http://www.wejo.com/role/DisclosurePrepaidAndOtherCurrentAssetsScheduleOfPrepaidAndOtherCurrentAssetsDetails Prepaid and Other Current Assets - Schedule of Prepaid and Other Current Assets (Details) Details 66 false false R67.htm 40901 - Disclosure - Property, Plant, and Equipment (Details) Sheet http://www.wejo.com/role/DisclosurePropertyPlantAndEquipmentDetails Property, Plant, and Equipment (Details) Details 67 false false R68.htm 40902 - Disclosure - Property, Plant, and Equipment - Narratives (Details) Sheet http://www.wejo.com/role/DisclosurePropertyPlantAndEquipmentNarrativesDetails Property, Plant, and Equipment - Narratives (Details) Details 68 false false R69.htm 41001 - Disclosure - Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) Sheet http://www.wejo.com/role/DisclosureIntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsDetails Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) Details 69 false false R70.htm 41002 - Disclosure - Intangible Assets - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureIntangibleAssetsNarrativeDetails Intangible Assets - Narrative (Details) Details 70 false false R71.htm 41003 - Disclosure - Intangible Assets - Estimated Future Amortization Expense (Details) Sheet http://www.wejo.com/role/DisclosureIntangibleAssetsEstimatedFutureAmortizationExpenseDetails Intangible Assets - Estimated Future Amortization Expense (Details) Details 71 false false R72.htm 41101 - Disclosure - Accrued Expenses and Other Current Liabilities (Details) Sheet http://www.wejo.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesDetails Accrued Expenses and Other Current Liabilities (Details) Details http://www.wejo.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables 72 false false R73.htm 41201 - Disclosure - Advanced Subscription Agreements (As Restated) (Details) Sheet http://www.wejo.com/role/DisclosureAdvancedSubscriptionAgreementsAsRestatedDetails Advanced Subscription Agreements (As Restated) (Details) Details http://www.wejo.com/role/DisclosureAdvancedSubscriptionAgreementsAsRestated 73 false false R74.htm 41301 - Disclosure - Convertible Loans (As Restated) (Details) Sheet http://www.wejo.com/role/DisclosureConvertibleLoansAsRestatedDetails Convertible Loans (As Restated) (Details) Details http://www.wejo.com/role/DisclosureConvertibleLoansAsRestated 74 false false R75.htm 41401 - Disclosure - Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCostsNarrativeDetails Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs - Narrative (Details) Details http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCostsTables 75 false false R76.htm 41402 - Disclosure - Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs - Schedule of debt (Details) Sheet http://www.wejo.com/role/DisclosureLongTermDebtNetOfUnamortizedDebtDiscountAndDebtIssuanceCostsScheduleOfDebtDetails Long-term Debt, Net of Unamortized Debt Discount and Debt Issuance Costs - Schedule of debt (Details) Details 76 false false R77.htm 41501 - Disclosure - Warrants - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureWarrantsNarrativeDetails Warrants - Narrative (Details) Details 77 false false R78.htm 41502 - Disclosure - Warrants - Activity Of Warrants (Details) Sheet http://www.wejo.com/role/DisclosureWarrantsActivityOfWarrantsDetails Warrants - Activity Of Warrants (Details) Details 78 false false R79.htm 41601 - Disclosure - Exchangeable Right Liability (Details) Sheet http://www.wejo.com/role/DisclosureExchangeableRightLiabilityDetails Exchangeable Right Liability (Details) Details http://www.wejo.com/role/DisclosureExchangeableRightLiabilityTables 79 false false R80.htm 41602 - Disclosure - Exchangeable Right Liability - Activity of Exchangeable Right (Details) Sheet http://www.wejo.com/role/DisclosureExchangeableRightLiabilityActivityOfExchangeableRightDetails Exchangeable Right Liability - Activity of Exchangeable Right (Details) Details 80 false false R81.htm 41701 - Disclosure - Shareholders' Equity (Deficit) (Details) Sheet http://www.wejo.com/role/DisclosureShareholdersEquityDeficitDetails Shareholders' Equity (Deficit) (Details) Details http://www.wejo.com/role/DisclosureShareholdersEquityDeficit 81 false false R82.htm 41801 - Disclosure - Share-Based Compensation - EMI and Articles of Association Narrative (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationEmiAndArticlesOfAssociationNarrativeDetails Share-Based Compensation - EMI and Articles of Association Narrative (Details) Details 82 false false R83.htm 41802 - Disclosure - Share-Based Compensation - Stock Option Roll-forward (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationStockOptionRollForwardDetails Share-Based Compensation - Stock Option Roll-forward (Details) Details 83 false false R84.htm 41803 - Disclosure - Share-Based Compensation - Equity Incentive Plan - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationEquityIncentivePlanNarrativeDetails Share-Based Compensation - Equity Incentive Plan - Narrative (Details) Details 84 false false R85.htm 41804 - Disclosure - Share-Based Compensation - Restricted Share Units - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationRestrictedShareUnitsNarrativeDetails Share-Based Compensation - Restricted Share Units - Narrative (Details) Details 85 false false R86.htm 41805 - Disclosure - Share-Based Compensation - Restricted Share Units (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationRestrictedShareUnitsDetails Share-Based Compensation - Restricted Share Units (Details) Details 86 false false R87.htm 41806 - Disclosure - Share-Based Compensation - Share Option Valuation (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationShareOptionValuationDetails Share-Based Compensation - Share Option Valuation (Details) Details 87 false false R88.htm 41807 - Disclosure - Share-Based Compensation - Share-based Compensation Expense (Details) Sheet http://www.wejo.com/role/DisclosureShareBasedCompensationShareBasedCompensationExpenseDetails Share-Based Compensation - Share-based Compensation Expense (Details) Details 88 false false R89.htm 41901 - Disclosure - Income Taxes - Loss Before Income Taxes (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesLossBeforeIncomeTaxesDetails Income Taxes - Loss Before Income Taxes (Details) Details 89 false false R90.htm 41902 - Disclosure - Income Taxes - Components of Income Tax (Benefit) (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesComponentsOfIncomeTaxBenefitDetails Income Taxes - Components of Income Tax (Benefit) (Details) Details 90 false false R91.htm 41903 - Disclosure - Income Taxes - Reconciliation Of Income Tax Expense (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesReconciliationOfIncomeTaxExpenseDetails Income Taxes - Reconciliation Of Income Tax Expense (Details) Details 91 false false R92.htm 41904 - Disclosure - Income Taxes - Deferred Tax Assets And Liabilities (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails Income Taxes - Deferred Tax Assets And Liabilities (Details) Details 92 false false R93.htm 41905 - Disclosure - Income Taxes - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesNarrativeDetails Income Taxes - Narrative (Details) Details 93 false false R94.htm 41906 - Disclosure - Income Taxes - Valuation Allowance (Details) Sheet http://www.wejo.com/role/DisclosureIncomeTaxesValuationAllowanceDetails Income Taxes - Valuation Allowance (Details) Details 94 false false R95.htm 42001 - Disclosure - Net Loss Per Share - Basic And Diluted Net Loss Per Share (Details) Sheet http://www.wejo.com/role/DisclosureNetLossPerShareBasicAndDilutedNetLossPerShareDetails Net Loss Per Share - Basic And Diluted Net Loss Per Share (Details) Details 95 false false R96.htm 42002 - Disclosure - Net Loss Per Share - Antidilutive Securities (Details) Sheet http://www.wejo.com/role/DisclosureNetLossPerShareAntidilutiveSecuritiesDetails Net Loss Per Share - Antidilutive Securities (Details) Details 96 false false R97.htm 42101 - Disclosure - Employee Benefit Plans (Details) Sheet http://www.wejo.com/role/DisclosureEmployeeBenefitPlansDetails Employee Benefit Plans (Details) Details http://www.wejo.com/role/DisclosureEmployeeBenefitPlans 97 false false R98.htm 42201 - Disclosure - Commitment and Contingencies - Commitments with Vendors (Details) Sheet http://www.wejo.com/role/DisclosureCommitmentAndContingenciesCommitmentsWithVendorsDetails Commitment and Contingencies - Commitments with Vendors (Details) Details 98 false false R99.htm 42202 - Disclosure - Commitment and Contingencies - Legal Proceedings (Details) Sheet http://www.wejo.com/role/DisclosureCommitmentAndContingenciesLegalProceedingsDetails Commitment and Contingencies - Legal Proceedings (Details) Details 99 false false R100.htm 42203 - Disclosure - Commitment and Contingencies - Future Minimum Lease Payments (Details) Sheet http://www.wejo.com/role/DisclosureCommitmentAndContingenciesFutureMinimumLeasePaymentsDetails Commitment and Contingencies - Future Minimum Lease Payments (Details) Details 100 false false R101.htm 42301 - Disclosure - Restructuring - Narrative (Details) Sheet http://www.wejo.com/role/DisclosureRestructuringNarrativeDetails Restructuring - Narrative (Details) Details 101 false false R102.htm 42302 - Disclosure - Restructuring - Restructuring Costs (Details) Sheet http://www.wejo.com/role/DisclosureRestructuringRestructuringCostsDetails Restructuring - Restructuring Costs (Details) Details 102 false false R103.htm 42401 - Disclosure - Related Party Transactions (Details) Sheet http://www.wejo.com/role/DisclosureRelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://www.wejo.com/role/DisclosureRelatedPartyTransactions 103 false false R104.htm 42501 - Disclosure - Subsequent Events (Details) Sheet http://www.wejo.com/role/DisclosureSubsequentEventsDetails Subsequent Events (Details) Details http://www.wejo.com/role/DisclosureSubsequentEvents 104 false false All Reports Book All Reports wejo-20211231xposam.htm wejo-20211231.xsd wejo-20211231_cal.xml wejo-20211231_def.xml wejo-20211231_lab.xml wejo-20211231_pre.xml wejo-20211231xex23d2.htm wejo-20211231xexfilingfees.htm http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true