| r0.c0 | Disclosure of changes in value of real estate portfolio/kvk-table_NotesChangesValueRealEstatePortfolioHousingTable-x.1.1.1 | bzk-ti-i:ChangesValueRealEstatePortfolioDisclosure | xbrli:stringItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Disclosure of other changes in value of real estate portfolio/kvk-table_NotesChangesValueRealEstatePortfolioHousingTable-x.1.1.1 | bzk-ti-i:ChangesValueOtherRealEstatePortfolioDisclosure | xbrli:stringItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Disclosure of non-realised changes in value of real estate portfolio/kvk-table_NotesChangesValueRealEstatePortfolioHousingTable-x.1.1.1 | bzk-ti-i:ChangesValueNotRealisedRealEstatePortfolioDisclosure | xbrli:stringItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Disclosure of non-realised changes in value of real estate portfolio sold under conditions/kvk-table_NotesChangesValueRealEstatePortfolioHousingTable-x.1.1.1 | bzk-ti-i:ChangesValueNotRealisedRealEstatePortfolioSoldUnderConditionsDisclosure | xbrli:stringItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Disclosure of non-realised changes in value of real estate portfolio for sale/kvk-table_NotesChangesValueRealEstatePortfolioHousingTable-x.1.1.1 | bzk-ti-i:ChangesValueNotRealisedRealEstatePortfolioForSaleDisclosure | xbrli:stringItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |