| r0.c0 | Disclosure of current liabilities/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:LiabilitiesCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Disclosure of current convertible borrowings/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:ConvertibleBorrowingsCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Disclosure of current debentures and private loans/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:DebenturesOtherPrivateLoansCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Disclosure of current payables to credit institutions/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:PayablesCreditInstitutionsCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Disclosure of current payables to group companies/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:PayablesGroupCompaniesCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Disclosure of current payables to other related parties/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:PayablesOtherRelatedPartiesCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Disclosure of current payables to receivables shareholders and participating interests/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:PayablesShareholdersParticipatingInterestsCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Disclosure of repayment obligations of non-current borrowings/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:RepaymentObligationsOfNoncurrentBorrowingsDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Disclosure of construction contracts/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | rj-i:ConstructionContractsLiabilitiesDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Disclosure of payables relating to vacation days or holiday pay/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | rj-i:PayablesVacationDaysHolidayPayDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Disclosure of current other payables/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:PayablesOtherCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Disclosure of current accruals and deferred income/kvk-table_NotesConsolidatedCurrentLiabilitiesTable_m_g-x.1.1.1 | venj-bw2-i:AccrualsAndDeferredIncomeCurrentDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |