| Fact | Value | Period | Source |
|---|
| cash_and_equivalents | {"amount": 857533000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2023-12-31 | esef |
| cash_and_equivalents | {"amount": 603134000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2022-12-31 | esef |
| cash_and_equivalents | {"amount": 355381000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2021-12-31 | esef |
| cash_and_equivalents | {"amount": 291602000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2021-01-01 | esef |
| cash_and_equivalents | {"amount": 291602000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2020-12-31 | esef |
| cash_and_equivalents | {"amount": 75987000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2020-01-01 | esef |
| cashflow_financing | {"amount": -134688000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-12-31 | esef |
| cashflow_financing | {"amount": -85157000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2023-12-31 | esef |
| cashflow_financing | {"amount": -83179000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2021-12-31 | esef |
| cashflow_financing | {"amount": -5000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2020-12-31 | esef |
| cashflow_investing | {"amount": -105853000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2023-12-31 | esef |
| cashflow_investing | {"amount": -17511000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-12-31 | esef |
| cashflow_investing | {"amount": 73536000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2021-12-31 | esef |
| cashflow_investing | {"amount": 10316000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2020-12-31 | esef |
| cashflow_operating | {"amount": 73422000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2021-12-31 | esef |
| cashflow_operating | {"amount": 445409000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2023-12-31 | esef |
| cashflow_operating | {"amount": 399952000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-12-31 | esef |
| cashflow_operating | {"amount": 205304000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2020-12-31 | esef |
| entity_legal_form | {"value": "P418", "elf_code": "P418"} | | gleif |
| headquarters_address | {"city": "VENEZIA", "region": "IT-VE", "street": "VIA TERRAGLIO, 63 (MESTRE)", "country": | | gleif |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": -4119000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 3148000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 11171000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": -47000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -11977000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -921000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -12559000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -3293000.0} | 2020-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 424659000.0} | 2023-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 393255000.0} | 2022-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 373606000.0} | 2021-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 314187000.0} | 2020-12-31 | esef |
| ifrs:Assets | {"amount": 14051361000.0} | 2023-12-31 | esef |
| ifrs:Assets | {"amount": 13262377000.0} | 2022-12-31 | esef |
| ifrs:Assets | {"amount": 12977891000.0} | 2021-12-31 | esef |
| ifrs:Assets | {"amount": 12026196000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 857533000.0} | 2023-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 603134000.0} | 2022-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 355381000.0} | 2021-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 291602000.0} | 2021-01-01 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 291602000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 75987000.0} | 2020-01-01 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -85157000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -134688000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -83179000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -5000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 10316000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -105853000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -17511000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 73536000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 445409000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 399952000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 73422000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 205304000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 180072000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 158844000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 231100000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 180282000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 63069000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": -94169000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": -6824000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 177170000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 106566000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 97795000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 49187000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -1806000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -797000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 336000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -1719000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 175364000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 105769000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 96076000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 48851000.0} | 2020-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 46601000.0} | 2023-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 60924000.0} | 2022-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 45548000.0} | 2021-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 74255000.0} | 2020-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 26025000.0} | 2023-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 21961000.0} | 2022-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 16699000.0} | 2021-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 12018000.0} | 2020-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 3288895000.0} | 2023-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 2605195000.0} | 2022-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 2504878000.0} | 2021-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 2069083000.0} | 2020-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 238834000.0} | 2023-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 264257000.0} | 2022-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 284126000.0} | 2021-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 307176000.0} | 2020-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 31692000.0} | 2023-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 30337000.0} | 2022-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 32455000.0} | 2021-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 36136000.0} | 2020-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 2717139000.0} | 2023-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 3422160000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 2597965000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 2367082000.0} | 2020-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 5814624000.0} | 2023-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 5103343000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 5683745000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 5471874000.0} | 2020-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 11644000.0} | 2023-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 20985000.0} | 2023-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 49811000.0} | 2022-12-31 | esef |
| ifrs:DividendsPaid | {"amount": -27346000.0} | 2020-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 25132000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 85157000.0} | 2023-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 102466000.0} | 2022-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 83047000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2023-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 14051361000.0} | 2023-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 13262377000.0} | 2022-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 12977891000.0} | 2021-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 12026196000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 14050000.0} | 2023-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 12981000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 15273000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 9347000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 112271000.0} | 2023-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 106494000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 98555000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 84234000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 98221000.0} | 2023-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 93513000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 83282000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 74887000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 11259701000.0} | 2023-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 10752694000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 10856795000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 9927163000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 234878000.0} | 2023-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 222088000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 153138000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 157848000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 12896000.0} | 2023-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 26868000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 8478000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 20870000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 221982000.0} | 2023-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 195220000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 144660000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 136978000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 749176000.0} | 2023-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 697611000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 614013000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 774555000.0} | 2020-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 11820658000.0} | 2023-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 11130698000.0} | 2022-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 10786588000.0} | 2021-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 9908039000.0} | 2020-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 14005000.0} | 2023-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 25982000.0} | 2022-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 5992000.0} | 2021-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 18551000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 986000.0} | 2023-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 304000.0} | 2022-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 24161000.0} | 2020-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": -79257000.0} | 2023-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": -54300000.0} | 2022-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": -45338000.0} | 2021-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 48895000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 75641000.0} | 2023-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 69909000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 47571000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 22735000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 254399000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 247753000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 63779000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 215615000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": 2000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": -13354000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": -132000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": 20363000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 1108000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 755000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 194000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": 0.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": -19257000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": 101000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": 64000.0} | 2020-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 76667000.0} | 2023-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 64264000.0} | 2022-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 61607000.0} | 2021-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 60970000.0} | 2020-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 768011000.0} | 2023-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 524193000.0} | 2022-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 463546000.0} | 2021-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 444816000.0} | 2020-12-31 | esef |
| ifrs:InvestmentAccountedForUsingEquityMethod | {"amount": 24000.0} | 2023-12-31 | esef |
| ifrs:InvestmentAccountedForUsingEquityMethod | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 53811000.0} | 2023-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 53811000.0} | 2022-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 53811000.0} | 2021-12-31 | esef |