| r0.c0 | Rental received (from operating activities)/Current | bzk-ww-i:RentalIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r0.c1 | Rental received (from operating activities)/Previous | bzk-ww-i:RentalIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r1.c0 | Reimbursements/Current | bzk-ww-i:Reimbursements | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r1.c1 | Reimbursements/Previous | bzk-ww-i:Reimbursements | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r2.c0 | Receipts government/Current | bzk-ww-i:ReceiptsGovernment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r2.c1 | Receipts government/Previous | bzk-ww-i:ReceiptsGovernment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r3.c0 | Other receipts companies/Current | bzk-ww-i:ReceiptsCompaniesOther | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r3.c1 | Other receipts companies/Previous | bzk-ww-i:ReceiptsCompaniesOther | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r4.c0 | Interest received (from operating activities)/Current | rj-i:InterestReceivedClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r4.c1 | Interest received (from operating activities)/Previous | rj-i:InterestReceivedClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r5.c0 | Cash inflows/Current | bzk-ww-i:BalanceCashInflows | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r5.c1 | Cash inflows/Previous | bzk-ww-i:BalanceCashInflows | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r6.c0 | Ground lease expenses (from operating activities)/Current | bzk-ww-i:GroundLeaseExpensesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r6.c1 | Ground lease expenses (from operating activities)/Previous | bzk-ww-i:GroundLeaseExpensesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r7.c0 | Payments to employees/Current | rj-i:PaymentsEmployees | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r7.c1 | Payments to employees/Previous | rj-i:PaymentsEmployees | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r8.c0 | Maintenance expenses (from operating activities)/Current | bzk-ww-i:MaintenanceExpensesClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r8.c1 | Maintenance expenses (from operating activities)/Previous | bzk-ww-i:MaintenanceExpensesClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r9.c0 | Other operating expenses (from operating activities)/Current | bzk-ww-i:OperatingExpensesOtherClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r9.c1 | Other operating expenses (from operating activities)/Previous | bzk-ww-i:OperatingExpensesOtherClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r10.c0 | Interest paid (from operating activities)/Current | rj-i:InterestPaidClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r10.c1 | Interest paid (from operating activities)/Previous | rj-i:InterestPaidClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r11.c0 | Sector specific levy independent of results/Current | bzk-ww-i:SectorSpecificLevyIndependentOfResult | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r11.c1 | Sector specific levy independent of results/Previous | bzk-ww-i:SectorSpecificLevyIndependentOfResult | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r12.c0 | Lessor levy/Current | bzk-ww-i:LessorLevy | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r12.c1 | Lessor levy/Previous | bzk-ww-i:LessorLevy | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r13.c0 | Liveability expenses external expenses non-investment related/Current | bzk-ww-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r13.c1 | Liveability expenses external expenses non-investment related/Previous | bzk-ww-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r14.c0 | Corporate tax/Current | bzk-ww-i:CorporateTaxClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r14.c1 | Corporate tax/Previous | bzk-ww-i:CorporateTaxClassifiedAsOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r15.c0 | Cash outflows/Current | bzk-ww-i:BalanceCashOutflows | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r15.c1 | Cash outflows/Previous | bzk-ww-i:BalanceCashOutflows | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r16.c0 | Cash flows from (used in) operating activities/Current | rj-i:CashFlowOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r16.c1 | Cash flows from (used in) operating activities/Previous | rj-i:CashFlowOperatingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r17.c0 | Sales income from rent/Current | bzk-ww-i:SalesIncomeRentOfHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r17.c1 | Sales income from rent/Previous | bzk-ww-i:SalesIncomeRentOfHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r18.c0 | Sales income of housing units (VOV)/Current | bzk-ww-i:SalesIncomeHousingUnitsVOVAfterPurchase | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r18.c1 | Sales income of housing units (VOV)/Previous | bzk-ww-i:SalesIncomeHousingUnitsVOVAfterPurchase | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r19.c0 | Sales income new buildings/Current | bzk-ww-i:SalesIncomeNewBuildingsHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r19.c1 | Sales income new buildings/Previous | bzk-ww-i:SalesIncomeNewBuildingsHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r20.c0 | Sales income land/Current | bzk-ww-i:SalesIncomeLand | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r20.c1 | Sales income land/Previous | bzk-ww-i:SalesIncomeLand | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r21.c0 | Divestment and investment proceeds other/Current | bzk-ww-i:DivestmentInvestmentProceedsOther | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r21.c1 | Divestment and investment proceeds other/Previous | bzk-ww-i:DivestmentInvestmentProceedsOther | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r22.c0 | Proceeds from sales of property, plant and equipment/Current | rj-i:ProceedsSalesPropertyPlantAndEquipment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r22.c1 | Proceeds from sales of property, plant and equipment/Previous | rj-i:ProceedsSalesPropertyPlantAndEquipment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r23.c0 | New buildings rent/Current | bzk-ww-i:PaymentsNewBuildingsRentHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r23.c1 | New buildings rent/Previous | bzk-ww-i:PaymentsNewBuildingsRentHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r24.c0 | Accommodation improvements/Current | bzk-ww-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r24.c1 | Accommodation improvements/Previous | bzk-ww-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r25.c0 | Purchase/Current | bzk-ww-i:PurchaseHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r25.c1 | Purchase/Previous | bzk-ww-i:PurchaseHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r26.c0 | New buildings sale/Current | bzk-ww-i:NewBuildingsSaleHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r26.c1 | New buildings sale/Previous | bzk-ww-i:NewBuildingsSaleHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r27.c0 | Purchase housing units (VOV) for resale/Current | bzk-ww-i:PurchaseHousingUnitsVOVForResale | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r27.c1 | Purchase housing units (VOV) for resale/Previous | bzk-ww-i:PurchaseHousingUnitsVOVForResale | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r28.c0 | Demolition expenses/Current | bzk-ww-i:DemolitionExpensesHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r28.c1 | Demolition expenses/Previous | bzk-ww-i:DemolitionExpensesHousingAndNonHousingUnits | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r29.c0 | Other investments from investing activities/Current | bzk-ww-i:InvestmentOtherFromInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r29.c1 | Other investments from investing activities/Previous | bzk-ww-i:InvestmentOtherFromInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r30.c0 | Purchase of property, plant and equipment/Current | rj-i:PurchasePropertyPlantEquipment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r30.c1 | Purchase of property, plant and equipment/Previous | rj-i:PurchasePropertyPlantEquipment | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r31.c0 | Incoming and outgoing cashflow property plant equipment/Current | bzk-ww-i:CashFlowPPEActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r31.c1 | Incoming and outgoing cashflow property plant equipment/Previous | bzk-ww-i:CashFlowPPEActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r32.c0 | Income compounds/Current | bzk-ww-i:IncomeCompounds | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r32.c1 | Income compounds/Previous | bzk-ww-i:IncomeCompounds | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r33.c0 | Income other/Current | bzk-ww-i:IncomeOtherClassifiedAsInvestingProperties | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r33.c1 | Income other/Previous | bzk-ww-i:IncomeOtherClassifiedAsInvestingProperties | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r34.c0 | Payments compound/Current | bzk-ww-i:PaymentsCompoundClassifiedAsInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r34.c1 | Payments compound/Previous | bzk-ww-i:PaymentsCompoundClassifiedAsInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r35.c0 | Payments other/Current | bzk-ww-i:PaymentsOtherClassifiedAsInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r35.c1 | Payments other/Previous | bzk-ww-i:PaymentsOtherClassifiedAsInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r36.c0 | Balance incoming and outgoing cashflow financial fixed assets/Current | bzk-ww-i:BalanceFinancialFixedAssets | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r36.c1 | Balance incoming and outgoing cashflow financial fixed assets/Previous | bzk-ww-i:BalanceFinancialFixedAssets | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r37.c0 | Cash flows from (used in) investing activities/Current | rj-i:CashFlowInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r37.c1 | Cash flows from (used in) investing activities/Previous | rj-i:CashFlowInvestingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r38.c0 | New non secured loans/Current | bzk-ww-i:NewNonSecuredLoans | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r38.c1 | New non secured loans/Previous | bzk-ww-i:NewNonSecuredLoans | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r39.c0 | Redemption secured loans/Current | bzk-ww-i:RedemptionNonSecuredLoans | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r39.c1 | Redemption secured loans/Previous | bzk-ww-i:RedemptionNonSecuredLoans | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r40.c0 | Cash flows from (used in) financing activities/Current | rj-i:CashFlowFinancingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r40.c1 | Cash flows from (used in) financing activities/Previous | rj-i:CashFlowFinancingActivities | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r41.c0 | Increase (decrease) in cash and cash equivalents/Current | rj-i:IncreaseDecreaseCashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r41.c1 | Increase (decrease) in cash and cash equivalents/Previous | rj-i:IncreaseDecreaseCashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r42.c0 | Changes in short-term loans cash and cash equivalents/Current | bzk-ww-i:ChangesShortTermCashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r42.c1 | Changes in short-term loans cash and cash equivalents/Previous | bzk-ww-i:ChangesShortTermCashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |