| r0.c0 | Cost price of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsCostPrice | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Accumulated amortisation and impairments of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAccumulatedAmortisationImpairments | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Accumulated revaluations of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAccumulatedRevaluations | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCosts | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-y.1/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | | | | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Additions of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAdditions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Additions through acquisitions of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAdditionsThroughAcquisitions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Amortisation of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAmortisation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Disposals of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsDisposals | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Amortisation on disposals of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsDisposalsAmortisation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Impairments of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsImpairments | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Reversal of impairments of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsImpairmentsReversal | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Divestitures of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsDivestitures | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | Revaluations of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsRevaluations | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c0 | Exchange differences on capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsExchangeDifferences | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c0 | Other movements of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsMovementsOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c0 | Movement during the period of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsMovement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c0 | kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-y.2/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | | | | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r18.c0 | Cost price of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsCostPrice | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r19.c0 | Accumulated amortisation and impairments of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAccumulatedAmortisationImpairments | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r20.c0 | Accumulated revaluations of capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCostsAccumulatedRevaluations | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r21.c0 | Capitalised acquisition costs/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | rj-i:CapitalisedAcquisitionCosts | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r22.c0 | kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-y.3/kvk-table_NotesConsolidatedCapitalisedAcquisitionCostsMovementInsurance-x.1.1.1 | | | | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |