| r0.c0 | Equity/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-y.1/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | | | | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Movement in equity as a result of income from investments/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityIncomeInvestmentsAllocation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Movement in equity as a result of surplus or shortfall in value of investments/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityInvestmentsSurplusShortfallValue | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Movement in equity as a result of taxes/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityTaxes | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Movement in equity as a result of other income/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityIncomeOtherAllocation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Movement in equity as a result of an increase or decrease in equity of in the managed capital/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityIncreaseDecreaseEquityManagedCapital | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Movement in equity as a result of other movements in assets and liabilities/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | rj-i:EquityAssetsLiabilitiesMovementsOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Movement in equity as a result of result allocation/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | venj-bw2-i:EquityResultAllocation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Movement in equity as a result of other movements/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | venj-bw2-i:EquityMovementOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Movement in equity during the period/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | venj-bw2-i:EquityMovement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-y.2/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | | | | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Equity/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-y.3/kvk-table_NotesConsolidatedNetChangesInEquityMovementScheduleInvestmentFirmTable-x.1.1 | | | | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |