3.25.4 html 289 505 1 true 83 0 false 7 false false R1.htm 75000 - Document - Document and Entity Information Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 75010 - Statement - Consolidated Balance Sheets Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedBalanceSheets1 Consolidated Balance Sheets Statements 2 false false R3.htm 75020 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 75030 - Statement - Consolidated Statements of Operations Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfOperations Consolidated Statements of Operations Statements 4 false false R5.htm 75040 - Statement - Consolidated Statements of Operations (Parenthetical) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfOperationsParenthetical Consolidated Statements of Operations (Parenthetical) Statements 5 false false R6.htm 75050 - Statement - Consolidated Statements of Comprehensive Loss Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveLoss Consolidated Statements of Comprehensive Loss Statements 6 false false R7.htm 75060 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 7 false false R8.htm 75070 - Statement - Consolidated Statements of Cash Flows Sheet http://www.bigcommerce.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 9 false false R10.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 10 false false R11.htm 995447 - Disclosure - Insider Trading Policies and Procedures Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc Insider Trading Policies and Procedures Notes 11 false false R12.htm 995457 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCybersecurityRiskManagementStrategyAndGovernance Cybersecurity Risk Management, Strategy, and Governance Notes 12 false false R13.htm 995467 - Disclosure - Overview Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureOverview Overview Notes 13 false false R14.htm 995477 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 14 false false R15.htm 995487 - Disclosure - Revenue Recognition and Deferred Costs Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureRevenueRecognitionAndDeferredCosts Revenue Recognition and Deferred Costs Notes 15 false false R16.htm 995497 - Disclosure - Fair Value Measurements Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureFairValueMeasurements Fair Value Measurements Notes 16 false false R17.htm 995517 - Disclosure - Goodwill and Intangible Assets Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssets Goodwill and Intangible Assets Notes 17 false false R18.htm 995527 - Disclosure - Property and Equipment Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosurePropertyAndEquipment Property and Equipment Notes 18 false false R19.htm 995537 - Disclosure - Commitments and Contingencies Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingencies1 Commitments and Contingencies Notes 19 false false R20.htm 995547 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilities1 Operating Leases, Right-of-Use Assets and Lease Liabilities Notes 20 false false R21.htm 995557 - Disclosure - Restructuring Charges Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRestructuringCharges1 Restructuring Charges Notes 21 false false R22.htm 995567 - Disclosure - Other Liabilities Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureOtherLiabilities Other Liabilities Notes 22 false false R23.htm 995577 - Disclosure - Debt Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureDebt Debt Notes 23 false false R24.htm 995587 - Disclosure - Stockholders' Equity Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquity1 Stockholders' Equity Notes 24 false false R25.htm 995597 - Disclosure - Income Taxes Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxes Income Taxes Notes 25 false false R26.htm 995607 - Disclosure - Net Loss per Share Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureNetLossPerShare Net Loss per Share Notes 26 false false R27.htm 995627 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 27 false false R28.htm 995637 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 28 false false R29.htm 995647 - Disclosure - Revenue Recognition and Deferred Costs (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureRevenueRecognitionAndDeferredCostsTables Revenue Recognition and Deferred Costs (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureRevenueRecognitionAndDeferredCosts 29 false false R30.htm 995657 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureFairValueMeasurements 30 false false R31.htm 995677 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssets 31 false false R32.htm 995687 - Disclosure - Property and Equipment (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosurePropertyAndEquipmentTables Property and Equipment (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosurePropertyAndEquipment 32 false false R33.htm 995697 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables Commitments and Contingencies (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingencies1 33 false false R34.htm 995707 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilitiesTables Operating Leases, Right-of-Use Assets and Lease Liabilities (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilities1 34 false false R35.htm 995717 - Disclosure - Restructuring Charges (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRestructuringChargesTables Restructuring Charges (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRestructuringCharges1 35 false false R36.htm 995727 - Disclosure - Other Liabilities (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureOtherLiabilitiesTables Other Liabilities (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureOtherLiabilities 36 false false R37.htm 995737 - Disclosure - Debt (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureDebtTables Debt (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureDebt 37 false false R38.htm 995747 - Disclosure - Stockholders' Equity (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquityTables Stockholders' Equity (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquity1 38 false false R39.htm 995757 - Disclosure - Income Taxes (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxes 39 false false R40.htm 995767 - Disclosure - Net Loss per Share (Tables) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureNetLossPerShareTables Net Loss per Share (Tables) Tables http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureNetLossPerShare 40 false false R41.htm 995777 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails Summary of Significant Accounting Policies - Additional Information (Details) Details 41 false false R42.htm 995787 - Disclosure - Summary of Significant Accounting Policies - Summary of Remaining Performance Obligation (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfRemainingPerformanceObligationDetails Summary of Significant Accounting Policies - Summary of Remaining Performance Obligation (Details) Details 42 false false R43.htm 995807 - Disclosure - Summary of Significant Accounting Policies - Schedule of Allowance for Credit Losses (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForCreditLossesDetails Summary of Significant Accounting Policies - Schedule of Allowance for Credit Losses (Details) Details 43 false false R44.htm 995817 - Disclosure - Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Property and Equipment (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfEstimatedUsefulLivesOfPropertyAndEquipmentDetails Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Property and Equipment (Details) Details 44 false false R45.htm 995827 - Disclosure - Revenue Recognition and Deferred Costs - Schedule of Disaggregate Revenue by Major Source (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureRevenueRecognitionAndDeferredCostsScheduleOfDisaggregateRevenueByMajorSourceDetails Revenue Recognition and Deferred Costs - Schedule of Disaggregate Revenue by Major Source (Details) Details 45 false false R46.htm 995837 - Disclosure - Revenue Recognition and Deferred Costs - Schedule of Revenue by Geographic Region (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRevenueRecognitionAndDeferredCostsScheduleOfRevenueByGeographicRegionDetails Revenue Recognition and Deferred Costs - Schedule of Revenue by Geographic Region (Details) Details 46 false false R47.htm 995847 - Disclosure - Revenue Recognition and Deferred Costs - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureRevenueRecognitionAndDeferredCostsAdditionalInformationDetails Revenue Recognition and Deferred Costs - Additional Information (Details) Details 47 false false R48.htm 995857 - Disclosure - Fair Value Measurements - Schedule of Cash Equivalents and Marketable Securities Measured at Fair Value (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfCashEquivalentsAndMarketableSecuritiesMeasuredAtFairValueDetails Fair Value Measurements - Schedule of Cash Equivalents and Marketable Securities Measured at Fair Value (Details) Details 48 false false R49.htm 995867 - Disclosure - Fair Value Measurements - Schedule of Cash Equivalents and Marketable Securities Measured at Fair Value (Parenthetical) (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfCashEquivalentsAndMarketableSecuritiesMeasuredAtFairValueParentheticalDetails Fair Value Measurements - Schedule of Cash Equivalents and Marketable Securities Measured at Fair Value (Parenthetical) (Details) Details 49 false false R50.htm 995877 - Disclosure - Fair Value Measurements - Schedule of Marketable Security Contractual Maturities (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfMarketableSecurityContractualMaturitiesDetails Fair Value Measurements - Schedule of Marketable Security Contractual Maturities (Details) Details 50 false false R51.htm 995887 - Disclosure - Fair Value Measurements - Summary of Gains, Losses, and Estimated Fair Value of Cash Equivalents and Marketable Securities (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfGainsLossesAndEstimatedFairValueOfCashEquivalentsAndMarketableSecuritiesDetails Fair Value Measurements - Summary of Gains, Losses, and Estimated Fair Value of Cash Equivalents and Marketable Securities (Details) Details 51 false false R52.htm 995897 - Disclosure - Business Combinations - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureBusinessCombinationsAdditionalInformationDetails Business Combinations - Additional Information (Details) Details 52 false false R53.htm 995907 - Disclosure - Business Combinations - Schedule of Total Purchase Consideration (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureBusinessCombinationsScheduleOfTotalPurchaseConsiderationDetails Business Combinations - Schedule of Total Purchase Consideration (Details) Details 53 false false R54.htm 995917 - Disclosure - Business Combinations - Schedule of Total Purchase Consideration (Parenthetical) (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureBusinessCombinationsScheduleOfTotalPurchaseConsiderationParentheticalDetails Business Combinations - Schedule of Total Purchase Consideration (Parenthetical) (Details) Details 54 false false R55.htm 995927 - Disclosure - Business Combinations - Summary of Fair Value of Assets Acquired and Liabilities Assumed (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureBusinessCombinationsSummaryOfFairValueOfAssetsAcquiredAndLiabilitiesAssumedDetails Business Combinations - Summary of Fair Value of Assets Acquired and Liabilities Assumed (Details) Details 55 false false R56.htm 995967 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails Goodwill and Intangible Assets - Additional Information (Details) Details 56 false false R57.htm 995977 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Details 57 false false R58.htm 995987 - Disclosure - Goodwill and Intangible Assets - Schedule of Expected Amortization Expense for Intangible Assets (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfExpectedAmortizationExpenseForIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Expected Amortization Expense for Intangible Assets (Details) Details 58 false false R59.htm 995997 - Disclosure - Property and Equipment - Schedule of Property and Equipment (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosurePropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails Property and Equipment - Schedule of Property and Equipment (Details) Details 59 false false R60.htm 996007 - Disclosure - Property and Equipment - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosurePropertyAndEquipmentAdditionalInformationDetails Property and Equipment - Additional Information (Details) Details 60 false false R61.htm 996017 - Disclosure - Property and Equipment - Schedule of Composition of Property and Equipment By Geographic Region (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentScheduleOfCompositionOfPropertyAndEquipmentByGeographicRegionDetails Property and Equipment - Schedule of Composition of Property and Equipment By Geographic Region (Details) Details 61 false false R62.htm 996027 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 62 false false R63.htm 996037 - Disclosure - Commitments and Contingencies - Schedule of Unconditional Purchase Obligations (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfUnconditionalPurchaseObligationsDetails Commitments and Contingencies - Schedule of Unconditional Purchase Obligations (Details) Details 63 false false R64.htm 996047 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilitiesAdditionalInformationDetails Operating Leases, Right-of-Use Assets and Lease Liabilities - Additional Information (Details) Details 64 false false R65.htm 996057 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Cash Flow Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilitiesScheduleOfCashFlowInformationDetails Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Cash Flow Information (Details) Details 65 false false R66.htm 996067 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Operating Lease Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilitiesScheduleOfOperatingLeaseInformationDetails Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Operating Lease Information (Details) Details 66 false false R67.htm 996077 - Disclosure - Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Future Maturities of Operating Lease Liabilities (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureOperatingLeasesRightofuseAssetsAndLeaseLiabilitiesScheduleOfFutureMaturitiesOfOperatingLeaseLiabilitiesDetails Operating Leases, Right-of-Use Assets and Lease Liabilities - Schedule of Future Maturities of Operating Lease Liabilities (Details) Details 67 false false R68.htm 996097 - Disclosure - Restructuring Charges - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRestructuringChargesAdditionalInformationDetails Restructuring Charges - Additional Information (Details) Details 68 false false R69.htm 996107 - Disclosure - Restructuring Charges - Summary of Activities Related to Restructuring Charges (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureRestructuringChargesSummaryOfActivitiesRelatedToRestructuringChargesDetails Restructuring Charges - Summary of Activities Related to Restructuring Charges (Details) Details 69 false false R70.htm 996127 - Disclosure - Other Liabilities - Components of Other Current Liabilities (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureOtherLiabilitiesComponentsOfOtherCurrentLiabilitiesDetails Other Liabilities - Components of Other Current Liabilities (Details) Details 70 false false R71.htm 996137 - Disclosure - Debt - Summary of Convertible Note Obligations (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureDebtSummaryOfConvertibleNoteObligationsDetails Debt - Summary of Convertible Note Obligations (Details) Details 71 false false R72.htm 996157 - Disclosure - Debt - Summary of Convertible Notes (Details) Notes http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureDebtSummaryOfConvertibleNotesDetails Debt - Summary of Convertible Notes (Details) Details 72 false false R73.htm 996167 - Disclosure - Debt - Summary of Total Interest Expense Recognized Related to Financing Obligation (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureDebtSummaryOfTotalInterestExpenseRecognizedRelatedToFinancingObligationDetails Debt - Summary of Total Interest Expense Recognized Related to Financing Obligation (Details) Details 73 false false R74.htm 996177 - Disclosure - Debt - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureDebtAdditionalInformationDetails Debt - Additional Information (Details) Details 74 false false R75.htm 996187 - Disclosure - Debt - Summary of Future Principal Payments For Borrowings (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureDebtSummaryOfFuturePrincipalPaymentsForBorrowingsDetails Debt - Summary of Future Principal Payments For Borrowings (Details) Details 75 false false R76.htm 996197 - Disclosure - Stockholders' Equity - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquityAdditionalInformationDetails Stockholders' Equity - Additional Information (Details) Details 76 false false R77.htm 996207 - Disclosure - Stockholders' Equity - Summary of Stock Options and Market based Awards Valuation Assumptions (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquitySummaryOfStockOptionsAndMarketBasedAwardsValuationAssumptionsDetails Stockholders' Equity - Summary of Stock Options and Market based Awards Valuation Assumptions (Details) Details 77 false false R78.htm 996217 - Disclosure - Stockholders' Equity - Summary of Changes in Stock Options Activity (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquitySummaryOfChangesInStockOptionsActivityDetails Stockholders' Equity - Summary of Changes in Stock Options Activity (Details) Details 78 false false R79.htm 996227 - Disclosure - Stockholders' Equity - Summary of RSU Activity (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureStockholdersEquitySummaryOfRsuActivityDetails Stockholders' Equity - Summary of RSU Activity (Details) Details 79 false false R80.htm 996247 - Disclosure - Income Taxes - Schedule of Pretax Losses (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureIncomeTaxesScheduleOfPretaxLossesDetails Income Taxes - Schedule of Pretax Losses (Details) Details 80 false false R81.htm 996257 - Disclosure - Income Taxes - Schedule Components of Benefit (Provision) for Income Taxes (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureIncomeTaxesScheduleComponentsOfBenefitProvisionForIncomeTaxesDetails Income Taxes - Schedule Components of Benefit (Provision) for Income Taxes (Details) Details 81 false false R82.htm 996267 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 82 false false R83.htm 996277 - Disclosure - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Details 83 false false R84.htm 996287 - Disclosure - Income Taxes - Schedule of Income Taxes Paid Net of Refunds (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureIncomeTaxesScheduleOfIncomeTaxesPaidNetOfRefundsDetails Income Taxes - Schedule of Income Taxes Paid Net of Refunds (Details) Details 84 false false R85.htm 996297 - Disclosure - Income Taxes - Significant Components of Deferred Taxes (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/Role_DisclosureIncomeTaxesSignificantComponentsOfDeferredTaxesDetails Income Taxes - Significant Components of Deferred Taxes (Details) Details 85 false false R86.htm 996307 - Disclosure - Income Taxes - Schedule of Liability for Unrecognized Tax Benefits (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureIncomeTaxesScheduleOfLiabilityForUnrecognizedTaxBenefitsDetails Income Taxes - Schedule of Liability for Unrecognized Tax Benefits (Details) Details 86 false false R87.htm 996317 - Disclosure - Net Loss per Share - Schedule of Earnings Per Share Basic and Diluted (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails Net Loss per Share - Schedule of Earnings Per Share Basic and Diluted (Details) Details 87 false false R88.htm 996327 - Disclosure - Net Loss per Share - Schedule of Antidilutive Securities Outstanding Excluded from Computation of Basic Weighted-Average Shares Outstanding (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureNetLossPerShareScheduleOfAntidilutiveSecuritiesOutstandingExcludedFromComputationOfBasicWeightedaverageSharesOutstandingDetails Net Loss per Share - Schedule of Antidilutive Securities Outstanding Excluded from Computation of Basic Weighted-Average Shares Outstanding (Details) Details 88 false false R89.htm 996337 - Disclosure - Subsequent Events - Additional Information (Details) Sheet http://www.bigcommerce.com/20251231/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails Subsequent Events - Additional Information (Details) Details 89 false false All Reports Book All Reports bigc-20251231.htm bigc-20251231.xsd img132648157_0.gif http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/cyd/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 false false