Document And Entity Information us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill ful_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsLiabilitiesNet Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets (Liabilities), Net Amount of other assets (liabilities), net expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. us-gaap_DerivativeNotionalAmount Derivative, Notional Amount Note To Financial Statement Details Textual Significant Accounting Policies Note 3 - Restructuring Actions Hedging Relationship [Domain] Note 4 - Inventories ND Industries Asia, Inc. ("ND Industries Taiwan") [Member] Represents ND Industries Asia, Inc. ("ND Industries Taiwan"). Note 5 - Goodwill and Other Intangible Assets ful_BusinessAcquisitionHoldbackAmountPercentageOfTranche Business Acquisition, Holdback Amount, Percentage of Tranche Percentage to be paid each tranche for holdback amount in business acquisition. Note 6 - Components of Net Periodic Benefit Related to Pension and Other Postretirement Benefit Plans Cash Flow Hedging [Member] ful_BusinessAcquisitionHoldbackAmountNumberOfTranches Business Acquisition, Holdback Amount, Number of Tranches Number of tranches for payment of holdback amount in business acquisition. Net Investment Hedging [Member] Note 7 - Accumulated Other Comprehensive Income (Loss) Note 9 - Earnings Per Share Note 10 - Financial Instruments Note 11 - Fair Value Measurements Income Tax Disclosure [Text Block] Hedging Relationship [Axis] Note 12 - Commitments and Contingencies Note 14 - Segments Note 3 - Restructuring Actions - Restructuring Charges (Details) Hedging Designation [Axis] Note 3 - Restructuring Actions - Restructuring Reserve (Details) Hedging Designation [Domain] Note 4 - Inventories - Inventories (Details) Designated as Hedging Instrument [Member] us-gaap_LiabilitiesCurrent Total current liabilities Note 5 - Goodwill and Other Intangible Assets - Goodwill Balance (Details) Note 5 - Goodwill and Other Intangible Assets - Amortizable Intangible Assets (Details) Note 5 - Goodwill and Other Intangible Assets - Estimated Aggregate Amortization Expense (Details) Note 6 - Components of Net Periodic Benefit Related to Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) Note 7 - Accumulated Other Comprehensive Income (Loss) - Comprehensive Income (Loss) Information (Details) Accumulated Other Comprehensive Income (Loss) [Table] us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax Defined benefit pension plans adjustment, net of tax Note 7 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) Note 7 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) Note 9 - Earnings Per Share - Earnings Per Share (Details) Defined benefit pension plans adjustment² Note 10 - Financial Instruments - Gains (Losses) on Derivative Instruments (Details) Note 11 - Fair Value Measurements - Fair Value Measurements (Details) Note 11 - Fair Value Measurements - Schedule of Holdback Liability (Details) Note 12 - Commitments and Contingencies - Asbestos Related Lawsuits and Claims (Details) Note 14 - Segments - Reportable Operating Segment Financial Information (Details) us-gaap_DerivativeVariableInterestRate Derivative, Variable Interest Rate us-gaap_LitigationSettlementAmountAwardedToOtherParty Litigation Settlement, Amount Awarded to Other Party Note 14 - Segments - Reconciliation of Segment Operating Income to Income From Continuing Operations Before Income Taxes and Income From Equity Method Investments (Details) Note 14 - Segments - Disaggregated Revenue Information (Details) Notes To Financial Statements Other income, net Foreign currency translation¹ Notes To Financial Statements [Abstract] Foreign currency translation Foreign currency translation adjustment¹, non-controlling interest Derivative [Table] us-gaap_OtherComprehensiveIncomeLossNetOfTax Other comprehensive income (loss) Schedule of Net Benefit Costs [Table Text Block] us-gaap_PaymentsToAcquireInvestments Purchase of cost method investment Before Reclassifications us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest Total equity Accumulated other comprehensive (loss) income Balance Balance Asbestos Related Lawsuits and Claims [Member] Litigation involving asbestos lawsuits and claims. Goodwill and Intangible Assets Disclosure [Text Block] Schedule of Goodwill [Table Text Block] Goodwill [Table] Other accrued expenses Domestic Plan [Member] Accrued compensation Foreign Plan [Member] us-gaap_AccruedIncomeTaxesCurrent Income taxes payable Pension Plan [Member] Retirement Plan Sponsor Location [Axis] Trade payables Retirement Plan Sponsor Location [Domain] Other Postretirement Benefits Plan [Member] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Proceeds from sale of property, plant and equipment us-gaap_PolicyTextBlockAbstract Accounting Policies us-gaap_LossContingencyClaimsSettledNumber Lawsuits and claims settled Trade Names [Member] us-gaap_LossContingencyReceivable Insurance payments received or expected to be received Other Intangible Assets [Member] us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Purchased property, plant and equipment Liabilities [Abstract] Current liabilities us-gaap_Assets Total assets us-gaap_LongTermDebtFairValue Long-Term Debt, Fair Value Customer Relationships [Member] Mergers, Acquisitions and Dispositions Disclosures [Text Block] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Business Combination, Contingent Consideration, Type [Axis] Business Combination, Contingent Consideration, Type [Domain] Business Description and Accounting Policies [Text Block] Effective Income Tax Rate Reconciliation [Table] ful_FinitelivedIntangibleAssetsImpairment Impairment In relation to the impairment of finite-lived intangible assets. Net income attributable to H.B. Fuller and non-controlling interest Net income attributable to H.B. Fuller Net income attributable to H.B. Fuller Other comprehensive income (loss), noncontrolling interest us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization Accumulated amortization us-gaap_FiniteLivedIntangibleAssetsNet Net identifiable intangibles Other intangibles, net Original cost Net income attributable to H.B. 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Supplier Finance Program, Policy [Policy Text Block] Disclosure of accounting policy for the Supplier Finance Program. Earnings per share attributable to H.B. 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Amendment Flag us-gaap_ComprehensiveIncomeNetOfTax Comprehensive income (loss) attributable to H.B. Fuller Comprehensive income (loss) City Area Code us-gaap_GainLossOnSaleOfBusiness Loss on the sale of a business New Accounting Pronouncements, Policy [Policy Text Block] Interest rate swaps, fair value hedge liabilities us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue Interest Rate Fair Value Hedge Liability at Fair Value Common stock, outstanding (in shares) Preferred stock, shares outstanding (in shares) us-gaap_IncreaseDecreaseInOtherOperatingAssets Other assets Current Fiscal Year End Date Expenses incurred Amount of expenses associated with exit or disposal activities pursuant to an authorized plan, net of tax. Excludes expenses related to a discontinued operation or an asset retirement obligation. us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage us-gaap_InterestRateCashFlowHedgeAssetAtFairValue Interest rate swaps, cash flow hedge assets Interest rate swaps, cash flow hedge liabilities us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue Interest Rate Cash Flow Hedge Liability at Fair Value Document Fiscal Period Focus Document Fiscal Year Focus Document Period End Date Entity File Number Entity Emerging Growth Company us-gaap_DebtInstrumentFaceAmount Debt Instrument, Face Amount Document Type ful_PaymentsToAcquireBusinessesHoldbackAmount Payments to Acquire Businesses, Holdback Amount The cash outflow associated with the holdback amount of the acquisition of business during the period. The cash portion only of the acquisition price. Entity Small Business Entity Shell Company us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 Settlement charge Document Information [Line Items] Document Information [Table] us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Balance at November 29, 2025 Balance at February 28, 2026 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements Payment of holdback liability Entity Filer Category Debt Instrument [Axis] Organizational realignment Entity Current Reporting Status Debt Instrument, Name [Domain] Restructuring Charges us-gaap_LitigationSettlementLoss Litigation Settlement, Loss Acquisition project costs us-gaap_DividendsCommonStock Dividends Variable Rate [Domain] Net Investment Hedge [Member] Represents net investment hedge. Variable Rate [Axis] us-gaap_IncreaseDecreaseInAccountsReceivable Trade receivables, net Statement of Comprehensive Income [Abstract] Entity Tax Identification Number Entity Central Index Key Depreciation and Amortization expense2 us-gaap_DepreciationAndAmortization Entity Registrant Name Liability Class [Axis] Fair Value by Liability Class [Domain] Entity [Domain] Legal Entity [Axis] Entity Address, Address Line One Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] us-gaap_AmortizationOfIntangibleAssets Amortization of Intangible Assets ecd_NonRule10b51ArrTrmntdFlag Non-Rule 10b5-1 Arrangement Terminated [Flag] Entity Address, City or Town ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] Entity Address, Postal Zip Code us-gaap_GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net Entity Address, State or Province ecd_NonRule10b51ArrAdoptedFlag Non-Rule 10b5-1 Arrangement Adopted [Flag] Material Terms of Trading Arrangement [Text Block] Trade receivables, allowances ful_FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour Thereafter Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Entity Common Stock, Shares Outstanding Trading Arrangements, by Individual [Table] us-gaap_StockRepurchasedDuringPeriodValue Stock Repurchased During Period, Value Repurchases of common stock Adjusted EBITDA ful_AdjustedEBITDA Adjusted EBITDA The amount of adjusted EBITDA. us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit Prior service cost us-gaap_IncreaseDecreaseInInventories Inventories us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses Actuarial loss (gain) Trading Symbol us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost Net periodic (benefit) cost us-gaap_DefinedBenefitPlanServiceCost Service cost us-gaap_DefinedBenefitPlanInterestCost Interest cost us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets Expected return on assets Local Phone Number us-gaap_TableTextBlock Notes Tables ful_PolicyTable us-gaap_GainLossOnSaleOfOtherAssets Loss (gain) on sale or disposal of assets us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised Stock option exercises London Interbank Offered Rate (LIBOR) 1 [Member] Interest rate at which a bank borrows funds from other banks in the London interbank market. us-gaap_SellingGeneralAndAdministrativeExpense Selling, general and administrative expenses Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Raw materials us-gaap_SegmentReportingOtherItemAmount Segment expenses and other items 1 us-gaap_LiabilitiesAndStockholdersEquity Total liabilities, non-controlling interest and total equity Finished goods UNITED STATES Retained earnings Accumulated other comprehensive loss Derivative Instruments, Gain (Loss) [Table Text Block] us-gaap_InterestExpenseDebt Interest expense Change in assets and liabilities, net of effects of acquisitions: us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements Derivative Instruments and Hedging Activities Disclosure [Text Block] Inventory Disclosure [Text Block] Schedule of Inventory, Current [Table Text Block] Inventory, Current [Table] Deferred income taxes Defined Benefit Plan [Table] Retirement Benefits [Text Block] us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions Income from equity method investments, net of dividends received us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear 2026 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo 2028 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree 2029 GEM [Member] Relating to GEM. us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour 2030 Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Weighted-average common shares outstanding: The number of weighted average shares outstanding, basic and diluted. us-gaap_PaymentsForRestructuring Cash payments us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths 2027 Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] ful_ComprehensiveLossIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest Comprehensive income Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Share-based compensation us-gaap_OtherAssetsNoncurrent Other assets Pension and other post-retirement benefit plan activity Amortization Depreciation us-gaap_DepreciationDepletionAndAmortization Depreciation and amortization The 2022 Share Repurchase Program [Member] Related to the 2022 share repurchase program. us-gaap_ForeignCurrencyContractAssetFairValueDisclosure Foreign exchange contract assets Interest Rate Swap 3 [Member] Related to the third interest rate swap. us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure Foreign exchange contract liabilities us-gaap_AssetsCurrent Total current assets Equity [Text Block] us-gaap_InvestmentsFairValueDisclosure Marketable securities Fair Value Measurement Inputs and Valuation Techniques [Table] Hygiene, Health, and Consumable Adhesives [Member] Represents Hygiene, Health, and Consumable Adhesives operating segment. Common stock, par value $1.00 per share, shares authorized – 160,000,000, shares issued and outstanding – 54,476,112 and 54,174,963 as of February 28, 2026 and November 29, 2025, respectively Adjustments to reconcile net income including non-controlling interest to net cash provided by operating activities: Measurement Frequency [Axis] Measurement Frequency [Domain] Fair Value, Recurring [Member] Common stock, authorized (in shares) ful_HoldbackLiability Holdback liability The amount of holdback liability. Americas [Member] Common stock, issued (in shares) Common stock, par value (in dollars per share) Asia Pacific [Member] ful_SharebasedCompensationPlansOtherNet Share-based compensation plans and other, net This element represents the amount of recognized equity-based compensation during the period. Holdback Liability [Member] Represents the holdback liability. ful_EffectiveIncomeTaxRateReconciliationPercentExcludingDiscreteTaxBenefit Effective Income Tax Rate Reconciliation, Percent, Excluding Discrete Tax Benefit Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations, excluding discrete tax benefit. us-gaap_OtherAssetsCurrent Other current assets ful_InterestIncomeAdjustedForEbitda Interest income Amount before accretion (amortization) of purchase discount (premium) on nonoperating securities adjusted for EBITDA calculations. Litigation Case [Axis] Interest expense1 ful_InterestExpenseAdjustedForEbitda Amount of interest expense adjusted for EBIDTA calculations. Litigation Case [Domain] Debt, Policy [Policy Text Block] ful_IncomeTaxExpenseBenefitAdjustedForEbitda Adjusted Income taxes Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations adjusted for EBITDA calculations. ful_RestructuringReserveSettledWithoutCashNet Non-cash charges Amount of decrease in the reserve for full or partial settlement through consideration other than cash, net. Preferred stock (no shares outstanding) shares authorized – 10,045,900 Geographical [Axis] Geographical [Domain] Preferred stock, shares authorized (in shares) us-gaap_InventoryNet Total inventories Inventories EIMEA [Member] Represents EIMEA which includes Europe, India, Middle East, and Africa. Net revenue Net revenue Fair Value, Inputs, Level 3 [Member] Construction Adhesives [Member] Related to the construction adhesives operating segment. Fair Value Hierarchy and NAV [Domain] Segment, Reconciliation of Other Items from Segments to Consolidated [Table] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] ful_EquivalentSharesFromSharebasedCompensationsPlans Equivalent shares from share-based compensations plans (in shares) Represents equivalent shares from share-based compensations plans. Fair Value Hierarchy and NAV [Axis] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Non-controlling interest Cash flows from operating activities: Schedule of Segment Reporting Information, by Segment [Table Text Block] Statement [Line Items] Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Trade receivables (net of allowances of $13,172 and $11,922, as of February 28, 2026 and November 29, 2025, respectively) us-gaap_NumberOfReportableSegments Number of Reportable Segments Additional paid-in capital Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] AOCI Attributable to Parent [Member] H.B. Fuller stockholders' equity: Liabilities: Building Adhesives Solutions [Member] Related to the building adhesives operating segment. us-gaap_OtherNonoperatingIncomeExpense Other Segment Reporting Disclosure [Text Block] Assets: Current assets: Fair Value Disclosures [Text Block] us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Effect of exchange rate changes on cash and cash equivalents Interest income us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net change in cash and cash equivalents us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash provided by financing activities us-gaap_Liabilities Total liabilities Commitments and contingencies (Note 13) us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash used in operating activities us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities Accrued pension liabilities us-gaap_CostOfRevenue Cost of sales us-gaap_GrossProfit Gross profit Consolidation Items [Domain] Consolidation Items [Axis] us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Other Restructuring Actions Related to Global Footprint Optimization [Member] Represents other restructuring actions related to global footprint optimization. The Plan Related to Organizational Changes and Other Actions [Member] Represents the plan related to organizational changes and other actions. Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] AOCI Including Portion Attributable to Noncontrolling Interest [Member] us-gaap_PaymentsOfDividendsCommonStock Dividends paid Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest [Member] Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member] Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member] Noncontrolling Interest [Member] AOCI Attributable to Noncontrolling Interest [Member] us-gaap_PaymentsForRepurchaseOfCommonStock Repurchases of common stock Retained Earnings [Member] Proceeds from stock options exercised Deferred Rent Credit us-gaap_StockRepurchaseProgramPeriodInForce1 Share Repurchase Program, Period in Force (Year) Additional Paid-in Capital [Member] Common Stock [Member] Equity Components [Axis] Equity Component [Domain] us-gaap_ReclassificationFromAociCurrentPeriodTax Reclassification of AOCI tax effects Purchased Technology And Patents [Member] Acquired technology based intangible assets. Before Reclassifications, tax us-gaap_EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumeration Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Net Investment Hedges [Member] Represents net investment hedges. Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Employee Related [Member] Related to employee related restructuring reserve. Other comprehensive income (loss) Public Notes [Member] Related to the issuance of "public notes". Asset Related [Member] Related to the asset related restructuring reserve. Disaggregation of Revenue [Table Text Block] us-gaap_RepaymentsOfLongTermDebt Repayment of long-term debt Document Quarterly Report Entity Incorporation, State or Country Code us-gaap_UnrecognizedTaxBenefits Unrecognized Tax Benefits Interest Rate Swap 2 [Member] Related to the second interest rate swap. Accounting Policies [Abstract] Document Transition Report Entity Interactive Data Current Security Exchange Name Title of 12(b) Security Proceeds from issuance of long-term debt us-gaap_DerivativeAmountOfHedgedItem Derivative, Amount of Hedged Item Net payment of notes payable us-gaap_SegmentExpenditureAdditionToLongLivedAssets Capital Expenditures The Plan Included in Selling General and Administrative [Member] Represents the plan included in selling general and administrative. The Plan Included in Cost of Sales [Member] Represents the plan included in cost of sales. Other Restructuring Included in Cost of Sales [Member] Represents other restructuring included in cost of sales. The plan Included in Other Expenses, Net [Member] Represents the plan included in other expenses. Accumulated Other Comprehensive Income (Loss) Disclosure [Text Block] The entire disclosure for all accumulated other comprehensive income (loss) information. Segments [Axis] Segments [Domain] Other Restructuring Included in Selling, General, and Administrative [Member] Represents other restructuring included in selling, general, and administrative. us-gaap_SupplierFinanceProgramObligation Supplier Finance Program, Obligation us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) Diluted (in shares) Weighted-average common and common equivalent shares diluted (in shares) Euro Short Term Rate (ESTR) Overnight Index Swap Rate [Member] Represents the wholesale euro unsecured overnight borrowing costs of banks located in the euro area. Statement [Table] Statement of Financial Position [Abstract] Diluted (in dollars per share) Basic (in shares) Weighted-average common shares - basic (in shares) Business Combination [Axis] Basic (in dollars per share) Business Combination [Domain] Statement of Cash Flows [Abstract] Engineering Adhesives [Member] Operating segment for engineering adhesives. Other comprehensive income (loss), pretax Statement of Stockholders' Equity [Abstract] Other comprehensive income (loss), tax Income Statement [Abstract] us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent Other comprehensive income (loss) Balance Balance Balance us-gaap_BusinessCombinationContingentConsiderationLiability Business Combination, Contingent Consideration, Liability us-gaap_RestructuringReserveTranslationAdjustment Foreign currency translation Derivative instruments Cash flow hedge³, pretax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax us-gaap_RestructuringAndRelatedCostExpectedCost1 Restructuring and Related Cost, Expected Cost Accounting Standards Update and Change in Accounting Principle [Table] Restructuring Plan [Axis] Restructuring Plan [Domain] Share Repurchase Program [Table] Other Restructuring [Member] srt_StockRepurchaseProgramAuthorizedAmount1 Share Repurchase Program, Authorized, Amount Type of Restructuring [Domain] Share Repurchase Program [Domain] Employee Severance [Member] Share Repurchase Program [Axis] Restructuring and Related Activities Disclosure [Text Block] Other Commitments [Table] Restructuring and Related Costs [Table Text Block] Restructuring Cost [Table] ful_DerivativeNotionalAmountOfEachInstrument Derivative, Notional Amount of Each Instrument Nominal or face amount used to calculate payment on derivative. Restructuring Type [Axis] ND Industries Turkey [Member] ND Industries Turkey us-gaap_IncomeTaxReconciliationOtherAdjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Cash flows from financing activities: Other Liabilities, Noncurrent Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Defined benefit pension plans adjustment², pretax ful_LitigationSettlementLossAfterTax Litigation Settlement, Loss, After Tax Amount of loss from litigation settlement for amount awarded to other party. Excludes claims within an insurance entity's normal claims settlement process. Rouse et al v HB Fuller [Member] Rouse et al v HB Fuller Adjusted net income attributable to H.B. Fuller The adjusted portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Project One The adjustment to income due to 'Project One.' Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] us-gaap_DerivativeLiabilitiesNoncurrent Net investment hedge liabilities Foreign currency translation¹, pretax Income tax effect on adjustments The income tax effect on income adjustments. Discrete tax items The amount of discrete tax items expensed during the period. Interest Rate Swap Related to Public Notes [Member] The interest rate swap that is related to the public notes. us-gaap_AccrualForEnvironmentalLossContingencies Accrual for Environmental Loss Contingencies Proceeds from the sale of a business us-gaap_StockholdersEquity Total H.B. Fuller stockholders' equity us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired Purchased businesses, net of cash acquired Class of Stock [Axis] Long-term debt Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] us-gaap_PaymentsToAcquireBusinessesGross Payments to Acquire Businesses, Gross Comprehensive Income (Loss) [Table Text Block] Interest Rate Swap [Member] Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Operating Segments [Member] us-gaap_DerivativeFixedInterestRate Derivative, Fixed Interest Rate Derivatives, net of tax