| Fact | Value | Period | Source |
|---|
| cashflow_financing | {"amount": 280254000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2025-12-31 | esef |
| cashflow_financing | {"amount": 286335000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2024-12-31 | esef |
| cashflow_investing | {"amount": -862716000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2025-12-31 | esef |
| cashflow_investing | {"amount": -591862000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2024-12-31 | esef |
| cashflow_operating | {"amount": 216876000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2025-12-31 | esef |
| cashflow_operating | {"amount": 150129000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2024-12-31 | esef |
| entity_legal_form | {"value": "B5PM", "elf_code": "B5PM"} | | gleif |
| eps_basic | {"amount": -1.77, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2025-12-31 | esef |
| eps_basic | {"amount": -0.21, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2024-12-31 | esef |
| eps_diluted | {"amount": -1.77, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2025-12-31 | esef |
| eps_diluted | {"amount": -0.21, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2024-12-31 | esef |
| headquarters_address | {"city": "Driebergen-Rijsenburg", "region": null, "street": "Hoofdstraat 10a", "country": | | gleif |
| ifrs:AdjustmentsForAmortisationExpense | {"amount": 15310000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForAmortisationExpense | {"amount": 17669000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost | {"amount": -844199000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost | {"amount": -594087000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks | {"amount": 14202000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks | {"amount": -11247000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers | {"amount": -258654000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers | {"amount": -292288000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDepreciationExpense | {"amount": 9786000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDepreciationExpense | {"amount": 10089000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets | {"amount": 71508000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets | {"amount": 11647000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForIncomeTaxExpense | {"amount": 21723000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncomeTaxExpense | {"amount": 3203000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromBanks | {"amount": -116928000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromBanks | {"amount": -296917000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers | {"amount": 597328000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers | {"amount": 718903000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForProvisions | {"amount": -95031000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForProvisions | {"amount": 103170000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForUnrealisedForeignExchangeLossesGains | {"amount": 26147000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForUnrealisedForeignExchangeLossesGains | {"amount": -21852000.0} | 2024-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 110229000.0} | 2025-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 121768000.0} | 2024-12-31 | esef |
| ifrs:Assets | {"amount": 17568613000.0} | 2025-12-31 | esef |
| ifrs:Assets | {"amount": 16967543000.0} | 2024-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": -0.21} | 2024-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": -1.77} | 2025-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 1613073000.0} | 2025-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 1855623000.0} | 2024-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 1772044000.0} | 2025-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 2137593000.0} | 2024-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 2293268000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 280254000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 286335000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -591862000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -862716000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 216876000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 150129000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": -29949000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 61915000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": -32865000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 4364000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": -32865000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 4364000.0} | 2024-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 17949000.0} | 2025-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 18752000.0} | 2024-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 16153000.0} | 2025-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 12597000.0} | 2024-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 657035000.0} | 2025-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 358371000.0} | 2024-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 7013000.0} | 2025-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 10191000.0} | 2024-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 8058000.0} | 2025-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 3772000.0} | 2024-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 256200000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 373128000.0} | 2024-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 15075330000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 14478002000.0} | 2024-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 239922000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 179989000.0} | 2024-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 11466000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 47978000.0} | 2024-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": -1.77} | 2025-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": -0.21} | 2024-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 8515000.0} | 2025-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 58347000.0} | 2024-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 870000.0} | 2025-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 774000.0} | 2024-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears | {"amount": 40323000.0} | 2024-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersPerShare | {"amount": 0.6} | 2025-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersPerShare | {"amount": 1.27} | 2024-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 37000.0} | 2025-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 277000.0} | 2024-12-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 222616000.0} | 2025-12-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 198708000.0} | 2024-12-31 | esef |
| ifrs:Equity | {"amount": 1191516000.0} | 2025-12-31 | esef |
| ifrs:Equity | {"amount": 1232813000.0} | 2024-12-31 | esef |
| ifrs:Equity | {"amount": 1288559000.0} | 2023-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 17568613000.0} | 2025-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 16967543000.0} | 2024-12-31 | esef |
| ifrs:ExpenseByNature | {"amount": 445715000.0} | 2025-12-31 | esef |
| ifrs:ExpenseByNature | {"amount": 462859000.0} | 2024-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 12088000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 13282000.0} | 2024-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 121443000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 128694000.0} | 2024-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 109355000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 115412000.0} | 2024-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 3679182000.0} | 2025-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 2837635000.0} | 2024-12-31 | esef |
| ifrs:GainsLossesOnChangeInFairValueOfDerivatives | {"amount": 609000.0} | 2025-12-31 | esef |
| ifrs:GainsLossesOnChangeInFairValueOfDerivatives | {"amount": -2011000.0} | 2024-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 71508000.0} | 2025-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 11647000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxesPaidClassifiedAsOperatingActivities | {"amount": 16575000.0} | 2025-12-31 | esef |
| ifrs:IncomeTaxesPaidClassifiedAsOperatingActivities | {"amount": 33263000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 21723000.0} | 2025-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 3203000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": 272000.0} | 2025-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": 523000.0} | 2024-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": -365586000.0} | 2025-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": -155398000.0} | 2024-12-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 48202000.0} | 2025-12-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 45597000.0} | 2024-12-31 | esef |
| ifrs:InterestPaidClassifiedAsOperatingActivities | {"amount": 183272000.0} | 2025-12-31 | esef |
| ifrs:InterestPaidClassifiedAsOperatingActivities | {"amount": 286782000.0} | 2024-12-31 | esef |
| ifrs:InterestReceivedClassifiedAsOperatingActivities | {"amount": 523508000.0} | 2025-12-31 | esef |
| ifrs:InterestReceivedClassifiedAsOperatingActivities | {"amount": 566730000.0} | 2024-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 536658000.0} | 2025-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 574086000.0} | 2024-12-31 | esef |
| ifrs:InterestRevenueExpense | {"amount": 331147000.0} | 2025-12-31 | esef |
| ifrs:InterestRevenueExpense | {"amount": 347703000.0} | 2024-12-31 | esef |
| ifrs:InvestmentIncome | {"amount": 870000.0} | 2025-12-31 | esef |
| ifrs:InvestmentIncome | {"amount": 774000.0} | 2024-12-31 | esef |
| ifrs:InvestmentProperty | {"amount": 4781000.0} | 2025-12-31 | esef |
| ifrs:InvestmentProperty | {"amount": 4893000.0} | 2024-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 14467000.0} | 2025-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 723353000.0} | 2024-12-31 | esef |
| ifrs:LeaseLiabilities | {"amount": 9972000.0} | 2025-12-31 | esef |
| ifrs:LeaseLiabilities | {"amount": 16202000.0} | 2024-12-31 | esef |
| ifrs:Liabilities | {"amount": 16377097000.0} | 2025-12-31 | esef |
| ifrs:Liabilities | {"amount": 15734730000.0} | 2024-12-31 | esef |
| ifrs:LoansAndAdvancesToBanks | {"amount": 277571000.0} | 2025-12-31 | esef |
| ifrs:LoansAndAdvancesToBanks | {"amount": 414763000.0} | 2024-12-31 | esef |
| ifrs:LoansAndAdvancesToCustomers | {"amount": 11491533000.0} | 2025-12-31 | esef |
| ifrs:LoansAndAdvancesToCustomers | {"amount": 11402136000.0} | 2024-12-31 | esef |
| ifrs:MiscellaneousOtherOperatingIncome | {"amount": 417000.0} | 2025-12-31 | esef |
| ifrs:MiscellaneousOtherOperatingIncome | {"amount": 1187000.0} | 2024-12-31 | esef |
| ifrs:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale | {"amount": 4690000.0} | 2025-12-31 | esef |
| ifrs:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale | {"amount": 3995000.0} | 2024-12-31 | esef |
| ifrs:OperatingExpense | {"amount": 374207000.0} | 2025-12-31 | esef |
| ifrs:OperatingExpense | {"amount": 451212000.0} | 2024-12-31 | esef |
| ifrs:OtherAssets | {"amount": 66776000.0} | 2025-12-31 | esef |
| ifrs:OtherAssets | {"amount": 69075000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncome | {"amount": -7825000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncome | {"amount": 7361000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxChangeInValueOfForeignCurrencyBasisSpreads | {"amount": 613000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxChangeInValueOfForeignCurrencyBasisSpreads | {"amount": -226000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation | {"amount": -9270000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation | {"amount": 5586000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments | {"amount": -82000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments | {"amount": 2193000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | {"amount": 1186000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | {"amount": 331000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxChangeInValueOfForeignCurrencyBasisSpreads | {"amount": 613000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxChangeInValueOfForeignCurrencyBasisSpreads | {"amount": -226000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | {"amount": -9270000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | {"amount": 5586000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": -48000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 1756000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | {"amount": 880000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | {"amount": 245000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | {"amount": -8657000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | {"amount": 5360000.0} | 2024-12-31 | esef |
| ifrs:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | {"amount": 832000.0} | 2025-12-31 | esef |
| ifrs:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | {"amount": 2001000.0} | 2024-12-31 | esef |
| ifrs:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities | {"amount": 10877000.0} | 2025-12-31 | esef |
| ifrs:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities | {"amount": -30237000.0} | 2024-12-31 | esef |
| ifrs:OtherLiabilities | {"amount": 61662000.0} | 2025-12-31 | esef |
| ifrs:OtherLiabilities | {"amount": 61927000.0} | 2024-12-31 | esef |
| ifrs:OtherOperatingIncomeExpense | {"amount": 1026000.0} | 2025-12-31 | esef |
| ifrs:OtherOperatingIncomeExpense | {"amount": -824000.0} | 2024-12-31 | esef |
| ifrs:OtherReserves | {"amount": 46985000.0} | 2025-12-31 | esef |
| ifrs:OtherReserves | {"amount": 44384000.0} | 2024-12-31 | esef |
| ifrs:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities | {"amount": 10093000.0} | 2025-12-31 | esef |
| ifrs:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities | {"amount": 2558000.0} | 2024-12-31 | esef |
| ifrs:PaymentsToAcquireOrRedeemEntitysShares | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:PaymentsToAcquireOrRedeemEntitysShares | {"amount": 1763000.0} | 2024-12-31 | esef |
| ifrs:ProceedsFromIssueOfBondsNotesAndDebentures | {"amount": 298779000.0} | 2025-12-31 | esef |
| ifrs:ProceedsFromIssueOfBondsNotesAndDebentures | {"amount": 349003000.0} | 2024-12-31 | esef |
| ifrs:ProceedsFromSaleOrIssueOfTreasuryShares | {"amount": 83000.0} | 2025-12-31 | esef |
| ifrs:ProceedsFromSaleOrIssueOfTreasuryShares | {"amount": 0.0} | 2024-12-31 | esef |
| ifrs:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | {"amount": 37000.0} | 2025-12-31 | esef |
| ifrs:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | {"amount": 138000.0} | 2024-12-31 | esef |
| ifrs:ProfitLoss | {"amount": -25040000.0} | 2025-12-31 | esef |
| ifrs:ProfitLoss | {"amount": -2997000.0} | 2024-12-31 | esef |
| ifrs:ProfitLossAttributableToOwnersOfParent | {"amount": -25040000.0} | 2025-12-31 | esef |
| ifrs:ProfitLossAttributableToOwnersOfParent | {"amount": -2997000.0} | 2024-12-31 | esef |
| ifrs:ProfitLossBeforeTax | {"amount": -3317000.0} | 2025-12-31 | esef |
| ifrs:ProfitLossBeforeTax | {"amount": 206000.0} | 2024-12-31 | esef |
| ifrs:PropertyPlantAndEquipment | {"amount": 71618000.0} | 2025-12-31 | esef |
| ifrs:PropertyPlantAndEquipment | {"amount": 77280000.0} | 2024-12-31 | esef |
| ifrs:Provisions | {"amount": 26594000.0} | 2025-12-31 | esef |
| ifrs:Provisions | {"amount": 121600000.0} | 2024-12-31 | esef |
| ifrs:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities | {"amount": 17998000.0} | 2025-12-31 | esef |
| ifrs:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities | {"amount": 14988000.0} | 2024-12-31 | esef |