| r0.c0 | Number of still for sale now delivered new buildings owner-occupied facilities/kvk-table_NotesUnsoldAmountHousingTable-x.1.1.1 | bzk-ti-i:HousingFacilitiesOwnerOccupiedForSaleDeliveredNewBuildings | xbrli:nonNegativeIntegerItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Number of still for sale new buildings under construction owner-occupied facilities/kvk-table_NotesUnsoldAmountHousingTable-x.1.1.1 | bzk-ti-i:HousingFacilitiesOwnerOccupiedForSaleUnderConstructionNewBuildings | xbrli:nonNegativeIntegerItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Number of still for sale existing owner-occupied facilities (VOV) purchased for resale, but not yet resold/kvk-table_NotesUnsoldAmountHousingTable-x.1.1.1 | bzk-ti-i:HousingFacilitiesOwnerOccupiedForSaleExistingBuildings | xbrli:nonNegativeIntegerItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |