| r0.c0 | Number of shares of the share capital/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberShares | xbrli:sharesItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | kvk-table_NotesShareCapitalStatementOfChangesKTable-y.1/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | | | | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Number of shares in the share capital issued/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesIssue | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Number of shares in the share capital purchased/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesPurchase | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Number of shares in the share capital granted/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesGranting | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Number of shares in the share capital sold/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesSale | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Number of shares in the share capital withdrawn/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesWithdrawal | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c0 | Number of shares in the share capital distributed as dividend/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesDistributionAsDividend | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c0 | Other movements in the number of shares in the share capital/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesOtherMovements | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c0 | Movement in the number of shares in the share capital during the period/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberSharesMovement | xbrli:sharesItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c0 | kvk-table_NotesShareCapitalStatementOfChangesKTable-y.2/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c0 | Number of shares of the share capital/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | venj-bw2-i:ShareCapitalNumberShares | xbrli:sharesItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r12.c0 | kvk-table_NotesShareCapitalStatementOfChangesKTable-y.3/kvk-table_NotesShareCapitalStatementOfChangesKTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |