| r0.c0 | Average number of employees employed during the financial year by the company, classified in a manner that is geared to the establishment of the company/Current | venj-bw2-i:AverageNumberEmployeesNetherlands | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r0.c1 | Average number of employees employed during the financial year by the company, classified in a manner that is geared to the establishment of the company/Previous | venj-bw2-i:AverageNumberEmployeesNetherlands | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r1.c0 | Average number of employees employed by the company outside the Netherlands during the financial year/Current | venj-bw2-i:AverageNumberEmployeesAbroad | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r1.c1 | Average number of employees employed by the company outside the Netherlands during the financial year/Previous | venj-bw2-i:AverageNumberEmployeesAbroad | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r2.c0 | Average number of employees during the period/Current | venj-bw2-i:AverageNumberEmployees | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r2.c1 | Average number of employees during the period/Previous | venj-bw2-i:AverageNumberEmployees | nl-types:nonNegativeDecimalItemType | duration | ifrs-smes:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |