| r0.c0 | Current convertible borrowings/Current | venj-bw2-i:ConvertibleBorrowingsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c1 | Current convertible borrowings/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:ConvertibleBorrowingsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Current other debentures and private loans/Current | venj-bw2-i:DebenturesOtherPrivateLoansCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c1 | Current other debentures and private loans/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:DebenturesOtherPrivateLoansCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Current payables to credit institutions/Current | venj-bw2-i:PayablesCreditInstitutionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c1 | Current payables to credit institutions/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:PayablesCreditInstitutionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Current payables to group companies/Current | venj-bw2-i:PayablesGroupCompaniesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c1 | Current payables to group companies/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:PayablesGroupCompaniesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Current payables to other related parties/Current | venj-bw2-i:PayablesOtherRelatedPartiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c1 | Current payables to other related parties/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:PayablesOtherRelatedPartiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Current payables to receivables shareholders and participating interests/Current | venj-bw2-i:PayablesShareholdersParticipatingInterestsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c1 | Current payables to receivables shareholders and participating interests/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:PayablesShareholdersParticipatingInterestsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Repayment obligations of non-current borrowings/Current | venj-bw2-i:RepaymentObligationsOfNoncurrentBorrowings | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c1 | Repayment obligations of non-current borrowings/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:RepaymentObligationsOfNoncurrentBorrowings | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c0 | Construction contracts (liabilities)/Current | rj-i:ConstructionContractsLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c1 | Construction contracts (liabilities)/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | rj-i:ConstructionContractsLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c0 | Current other payables/Current | venj-bw2-i:PayablesOtherCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c1 | Current other payables/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:PayablesOtherCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c0 | Current accruals and deferred income/Current | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c1 | Current accruals and deferred income/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c0 | Current liabilities/Current | venj-bw2-i:LiabilitiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c1 | Current liabilities/kvk-table_NotesCurrentLiabilitiesBreakdownTable_m_g-x.1.1.2 | venj-bw2-i:LiabilitiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |