3.6.0.2 html 333 436 1 false 127 0 false 10 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Consolidated Balance Sheets Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 100020 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Consolidated Statements of Operations Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfOperations Consolidated Statements of Operations Statements 4 false false R5.htm 100040 - Statement - Consolidated Statements of Comprehensive Loss Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveLoss Consolidated Statements of Comprehensive Loss Statements 5 false false R6.htm 100050 - Statement - Consolidated Statements of Comprehensive Loss (Parenthetical) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveLossParenthetical Consolidated Statements of Comprehensive Loss (Parenthetical) Statements 6 false false R7.htm 100060 - Statement - Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersEquityDeficit Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) Statements 7 false false R8.htm 100070 - Statement - Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersEquityDeficitParenthetical Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) Statements 8 false false R9.htm 100080 - Statement - Consolidated Statement of Cash Flows Sheet http://www.adurobiotech.com/20161231/taxonomy/role/StatementConsolidatedStatementOfCashFlows Consolidated Statement of Cash Flows Statements 9 false false R10.htm 100090 - Disclosure - Organization and Nature of Business Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureOrganizationAndNatureOfBusiness Organization and Nature of Business Notes 10 false false R11.htm 100100 - Disclosure - Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncements Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements Notes 11 false false R12.htm 100110 - Disclosure - Fair Value Measurements Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 100120 - Disclosure - Balance Sheet Components Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponents Balance Sheet Components Notes 13 false false R14.htm 100130 - Disclosure - Acquisition of BioNovion Holding, B.V. Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBV Acquisition of BioNovion Holding, B.V. Notes 14 false false R15.htm 100140 - Disclosure - Goodwill and Intangible Assets Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets Goodwill and Intangible Assets Notes 15 false false R16.htm 100150 - Disclosure - Collaboration Agreements Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCollaborationAgreements Collaboration Agreements Notes 16 false false R17.htm 100160 - Disclosure - Research and Development and License Agreements Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureResearchAndDevelopmentAndLicenseAgreements Research and Development and License Agreements Notes 17 false false R18.htm 100170 - Disclosure - Commitments and Contingencies Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 18 false false R19.htm 100180 - Disclosure - Common Stock Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommonStock Common Stock Notes 19 false false R20.htm 100190 - Disclosure - Warrants Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureWarrants Warrants Notes 20 false false R21.htm 100200 - Disclosure - Equity Incentive Plans Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlans Equity Incentive Plans Notes 21 false false R22.htm 100210 - Disclosure - Income Taxes Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 22 false false R23.htm 100220 - Disclosure - Employee Benefit Plan Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEmployeeBenefitPlan Employee Benefit Plan Notes 23 false false R24.htm 100230 - Disclosure - Net Loss Per Common Share Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureNetLossPerCommonShare Net Loss Per Common Share Notes 24 false false R25.htm 100240 - Disclosure - Selected Quarterly Financial Data (Unaudited) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureSelectedQuarterlyFinancialDataUnaudited Selected Quarterly Financial Data (Unaudited) Notes 25 false false R26.htm 100250 - Disclosure - Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements (Policies) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncementsPolicies Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements (Policies) Policies http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncements 26 false false R27.htm 100260 - Disclosure - Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncementsTables Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncements 27 false false R28.htm 100270 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurements 28 false false R29.htm 100280 - Disclosure - Balance Sheet Components (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponentsTables Balance Sheet Components (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponents 29 false false R30.htm 100290 - Disclosure - Acquisition of BioNovion Holding B.V. (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBVTables Acquisition of BioNovion Holding B.V. (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBV 30 false false R31.htm 100300 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets 31 false false R32.htm 100310 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables Commitments and Contingencies (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingencies 32 false false R33.htm 100320 - Disclosure - Common Stock (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommonStockTables Common Stock (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommonStock 33 false false R34.htm 100330 - Disclosure - Warrants (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureWarrantsTables Warrants (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureWarrants 34 false false R35.htm 100340 - Disclosure - Equity Incentive Plans (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansTables Equity Incentive Plans (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlans 35 false false R36.htm 100350 - Disclosure - Income Taxes (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxes 36 false false R37.htm 100360 - Disclosure - Net Loss per Common Share (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureNetLossPerCommonShareTables Net Loss per Common Share (Tables) Tables 37 false false R38.htm 100370 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Tables) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureSelectedQuarterlyFinancialDataUnauditedTables Selected Quarterly Financial Data (Unaudited) (Tables) Tables http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureSelectedQuarterlyFinancialDataUnaudited 38 false false R39.htm 100380 - Disclosure - Organization and Nature of Business - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureOrganizationAndNatureOfBusinessAdditionalInformationDetails Organization and Nature of Business - Additional Information (Details) Details 39 false false R40.htm 100390 - Disclosure - Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncementsAdditionalInformationDetails Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements - Additional Information (Details) Details 40 false false R41.htm 100400 - Disclosure - Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements - Summary of Useful Lives of the Property and Equipment (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBasisOfPresentationUseOfEstimatesAndRecentAccountingPronouncementsSummaryOfUsefulLivesOfPropertyAndEquipmentDetails Basis of Presentation, Use of Estimates and Recent Accounting Pronouncements - Summary of Useful Lives of the Property and Equipment (Details) Details 41 false false R42.htm 100410 - Disclosure - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) Details 42 false false R43.htm 100420 - Disclosure - Fair Value Measurements - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetails Fair Value Measurements - Additional Information (Details) Details 43 false false R44.htm 100430 - Disclosure - Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Liabilities (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfChangesInFairValueOfLevel3FinancialLiabilitiesDetails Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Liabilities (Details) Details 44 false false R45.htm 100440 - Disclosure - Fair Value Measurements - Summary of Estimated Value of Cash Equivalents and Marketable Securities and Gross Unrealized Holding Gains and Losses (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfEstimatedValueOfCashEquivalentsAndMarketableSecuritiesAndGrossUnrealizedHoldingGainsAndLossesDetails Fair Value Measurements - Summary of Estimated Value of Cash Equivalents and Marketable Securities and Gross Unrealized Holding Gains and Losses (Details) Details 45 false false R46.htm 100450 - Disclosure - Fair Value Measurements - Summary of Amortized Cost and Estimated Fair Value of Available-for-Sale Marketable Securities by Contractual Maturity (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfAmortizedCostAndEstimatedFairValueOfAvailableForSaleMarketableSecuritiesByContractualMaturityDetails Fair Value Measurements - Summary of Amortized Cost and Estimated Fair Value of Available-for-Sale Marketable Securities by Contractual Maturity (Details) Details 46 false false R47.htm 100460 - Disclosure - Balance Sheet Components - Summary of Property and Equipment, Net (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetails Balance Sheet Components - Summary of Property and Equipment, Net (Details) Details 47 false false R48.htm 100470 - Disclosure - Balance Sheet Components - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponentsAdditionalInformationDetails Balance Sheet Components - Additional Information (Details) Details 48 false false R49.htm 100480 - Disclosure - Balance Sheet Components - Summary of Accrued Expenses and Other Liabilities (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureBalanceSheetComponentsSummaryOfAccruedExpensesAndOtherLiabilitiesDetails Balance Sheet Components - Summary of Accrued Expenses and Other Liabilities (Details) Details 49 false false R50.htm 100490 - Disclosure - Acquisition of BioNovion Holding, B.V. - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBVAdditionalInformationDetails Acquisition of BioNovion Holding, B.V. - Additional Information (Details) Details 50 false false R51.htm 100500 - Disclosure - Acquisition of BioNovion Holding, B.V. - Summary of Purchase Consideration (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBVSummaryOfPurchaseConsiderationDetails Acquisition of BioNovion Holding, B.V. - Summary of Purchase Consideration (Details) Details 51 false false R52.htm 100510 - Disclosure - Acquisition of BioNovion Holding, B.V. - Summary of Preliminary Fair Value of Assets Acquired and Liabilities Assumed (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBVSummaryOfPreliminaryFairValueOfAssetsAcquiredAndLiabilitiesAssumedDetails Acquisition of BioNovion Holding, B.V. - Summary of Preliminary Fair Value of Assets Acquired and Liabilities Assumed (Details) Details 52 false false R53.htm 100520 - Disclosure - Acquisition of BioNovion Holding, B.V. - Summary of Pro Forma Financial Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureAcquisitionOfBionovionHoldingBVSummaryOfProFormaFinancialInformationDetails Acquisition of BioNovion Holding, B.V. - Summary of Pro Forma Financial Information (Details) Details 53 false false R54.htm 100530 - Disclosure - Goodwill and Intangible Assets - Schedule of Goodwill (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfGoodwillDetails Goodwill and Intangible Assets - Schedule of Goodwill (Details) Details 54 false false R55.htm 100540 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Details 55 false false R56.htm 100550 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails Goodwill and Intangible Assets - Additional Information (Details) Details 56 false false R57.htm 100560 - Disclosure - Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets Estimated Future Amortization Expense (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsEstimatedFutureAmortizationExpenseDetails Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets Estimated Future Amortization Expense (Details) Details 57 false false R58.htm 100570 - Disclosure - Collaboration Agreements - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCollaborationAgreementsAdditionalInformationDetails Collaboration Agreements - Additional Information (Details) Details 58 false false R59.htm 100580 - Disclosure - Research and Development and License Agreements - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureResearchAndDevelopmentAndLicenseAgreementsAdditionalInformationDetails Research and Development and License Agreements - Additional Information (Details) Details 59 false false R60.htm 100590 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 60 false false R61.htm 100600 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Payments under the Leases (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfFutureMinimumPaymentsUnderLeasesDetails Commitments and Contingencies - Schedule of Future Minimum Payments under the Leases (Details) Details 61 false false R62.htm 100610 - Disclosure - Common Stock - Schedule of Common Share Reserved for Future Issuance (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommonStockScheduleOfCommonShareReservedForFutureIssuanceDetails Common Stock - Schedule of Common Share Reserved for Future Issuance (Details) Details 62 false false R63.htm 100620 - Disclosure - Common Stock - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureCommonStockAdditionalInformationDetails Common Stock - Additional Information (Details) Details 63 false false R64.htm 100630 - Disclosure - Warrants - Schedule of Warrants Issued and Outstanding (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureWarrantsScheduleOfWarrantsIssuedAndOutstandingDetails Warrants - Schedule of Warrants Issued and Outstanding (Details) Details 64 false false R65.htm 100640 - Disclosure - Warrants - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureWarrantsAdditionalInformationDetails Warrants - Additional Information (Details) Details 65 false false R66.htm 100650 - Disclosure - Equity Incentive Plans - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetails Equity Incentive Plans - Additional Information (Details) Details 66 false false R67.htm 100660 - Disclosure - Equity Incentive Plans - Schedule of Stock Option Plan Activity (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansScheduleOfStockOptionPlanActivityDetails Equity Incentive Plans - Schedule of Stock Option Plan Activity (Details) Details 67 false false R68.htm 100670 - Disclosure - Equity Incentive Plans - Schedule of Stock Option Plan Activity (Parenthetical) (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansScheduleOfStockOptionPlanActivityParentheticalDetails Equity Incentive Plans - Schedule of Stock Option Plan Activity (Parenthetical) (Details) Details 68 false false R69.htm 100680 - Disclosure - Equity Incentive Plans - Summary of Restricted Stock Unit Activity (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRestrictedStockUnitActivityDetails Equity Incentive Plans - Summary of Restricted Stock Unit Activity (Details) Details 69 false false R70.htm 100690 - Disclosure - Equity Incentive Plans - Summary of Stock-Based Compensation (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockBasedCompensationDetails Equity Incentive Plans - Summary of Stock-Based Compensation (Details) Details 70 false false R71.htm 100700 - Disclosure - Equity Incentive Plans - Schedule of Black-Scholes Option-Pricing Model (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureEquityIncentivePlansScheduleOfBlackScholesOptionPricingModelDetails Equity Incentive Plans - Schedule of Black-Scholes Option-Pricing Model (Details) Details 71 false false R72.htm 100710 - Disclosure - Income Taxes - Components of Loss Before Income Tax Benefit (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesComponentsOfLossBeforeIncomeTaxBenefitDetails Income Taxes - Components of Loss Before Income Tax Benefit (Details) Details 72 false false R73.htm 100720 - Disclosure - Income Taxes - Components of Income Tax Provision (Benefit) (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesComponentsOfIncomeTaxProvisionBenefitDetails Income Taxes - Components of Income Tax Provision (Benefit) (Details) Details 73 false false R74.htm 100730 - Disclosure - Income Taxes - Reconciliation of Statutory U.S. Federal Rate to Effective Tax Rate (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesReconciliationOfStatutoryUSFederalRateToEffectiveTaxRateDetails Income Taxes - Reconciliation of Statutory U.S. Federal Rate to Effective Tax Rate (Details) Details 74 false false R75.htm 100740 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 75 false false R76.htm 100750 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Details 76 false false R77.htm 100760 - Disclosure - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureIncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) Details 77 false false R78.htm 100770 - Disclosure - Net Loss per Common Share - Schedule of Potentially Dilutive Securities not Included in Calculation of Diluted Per Common Share (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureNetLossPerCommonShareScheduleOfPotentiallyDilutiveSecuritiesNotIncludedInCalculationOfDilutedPerCommonShareDetails Net Loss per Common Share - Schedule of Potentially Dilutive Securities not Included in Calculation of Diluted Per Common Share (Details) Details 78 false false R79.htm 100780 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Details) Sheet http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureSelectedQuarterlyFinancialDataUnauditedDetails Selected Quarterly Financial Data (Unaudited) (Details) Details http://www.adurobiotech.com/20161231/taxonomy/role/DisclosureSelectedQuarterlyFinancialDataUnauditedTables 79 false false All Reports Book All Reports adro-20161231.xml adro-20161231.xsd adro-20161231_cal.xml adro-20161231_def.xml adro-20161231_lab.xml adro-20161231_pre.xml true true