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bzk-table_CashFlowStatementDaebHousingDpiVRTable - 3.1.1 - Cash flow statement: DAEB activities [table]

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First forecast year

Second forecast year

Third forecast year

Fourth forecast year

Fifth forecast year

Receipts independent rental properties DAEB

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsIndependentRentalPropertiesDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Receipts dependent other housing units DAEB

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsDependentOtherHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Receipts other non housing facilities DAEB

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ReceiptsOtherNonHousingFacilitiesUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Rental income (from operating activities)

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Reimbursements

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:Reimbursements	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Receipts government

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsGovernment	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Other receipts companies

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ReceiptsCompaniesOther	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Interest received (excluding internal loan)

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestReceivedExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Interest received (from operating activities)

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestReceivedClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Cash inflows

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashInflows	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Ground lease expenses (from operating activities)

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Payments to employees

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PaymentsEmployees	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Maintenance expenses (from operating activities)

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Other operating expenses (from operating activities)

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Interest paid (excluding internal loan)

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InterestPaidExcludingInternalLoansClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Interest paid (from operating activities)

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:InterestPaidClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Sector specific levy independent of results

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:SectorSpecificLevyIndependentOfResult	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Lessor levy

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LessorLevy	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Liveability expenses external expenses non-investment related

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Corporate tax

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Cash outflows

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceCashOutflows	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Cash flows from (used in) operating activities

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowOperatingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Sales income from rent of housing and non-housing units DAEB

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeRentOfHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Sales income of housing units (VOV) after purchase in dPi period DAEB

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriodDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Sales income land DAEB

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:SalesIncomeLandDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Divestment/investment proceeds other DAEB

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DivestmentInvestmentProceedsOtherDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Proceeds from sales of property, plant and equipment

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:ProceedsSalesPropertyPlantAndEquipment	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

New buildings rent, housing and non-housing units DAEB

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsNewBuildingsRentHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Accommodation improvements, housing and non-housing units DAEB

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Liveability external expenses project related DAEB

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:LiveabilityExternalExpensesProjectRelatedDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Purchase housing and non-housing units DAEB

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Purchase housing units (VOV) for resale DAEB

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseHousingUnitsVOVForResaleDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Demolition expenses, housing and non-housing units DAEB

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:DemolitionExpensesHousingAndNonHousingUnitsDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Purchase land DAEB

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:PurchaseLandDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Investments other DAEB

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:InvestmentOtherFromInvestingActivitiesDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

External cost at sale DAEB

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:ExternalCostAtSaleDaeb	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Purchase of property, plant and equipment

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:PurchasePropertyPlantEquipment	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Incoming and outgoing cashflow property plant equipment

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:CashFlowPPEActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Income compounds

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeCompounds	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Income other

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Expenses compound

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesCompound	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Expenses other (from investing activities)

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Balance incoming and outgoing cashflow financial fixed assets

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:BalanceFinancialFixedAssets	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Cash flows from (used in) investing activities

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowInvestingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

New loans to be secured

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewLoansToBeSecured	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

New non secured loans

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:NewNonSecuredLoans	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Redemption secured loans

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionSecuredLoans	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Redemption secured loans

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-aw-wsw-i:RedemptionNonSecuredLoans	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Cash flows from (used in) financing activities

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:CashFlowFinancingActivities	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Increase (decrease) in cash and cash equivalents

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	rj-i:IncreaseDecreaseCashAndCashEquivalents	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

Changes in short-term loans cash and cash equivalents

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x

concept	bzk-ti-i:ChangesShortTermCashAndCashEquivalents	y
period	$FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam	x
venj-bw2-dim:BasisOfPreparationAxis	$BasisOfPreparationParam	x
venj-bw2-dim:FinancialStatementsTypeAxis	bzk-ti-dm:DAEBActivitiesMember	x