| r0.c0 | Number of new buildings with purpose sale/Forecast reporting year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r0.c1 | Number of new buildings with purpose sale/First forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r0.c2 | Number of new buildings with purpose sale/Second forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r0.c3 | Number of new buildings with purpose sale/Third forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r0.c4 | Number of new buildings with purpose sale/Fourth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r0.c5 | Number of new buildings with purpose sale/Fifth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleNumber | bzk-ww-types:nonNegative1DecimalItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |
| r1.c0 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/Forecast reporting year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r1.c1 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/First forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r1.c2 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/Second forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r1.c3 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/Third forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r1.c4 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/Fourth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r1.c5 | Sale foundation costs new buildings with purpose sale (incl land and sales expenses)/Fifth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleFoundationExpensesIncludingLandAndSalesExpenses | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |
| r2.c0 | Income of new buildings with purpose sale/Forecast reporting year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r2.c1 | Income of new buildings with purpose sale/First forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r2.c2 | Income of new buildings with purpose sale/Second forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r2.c3 | Income of new buildings with purpose sale/Third forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r2.c4 | Income of new buildings with purpose sale/Fourth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r2.c5 | Income of new buildings with purpose sale/Fifth forecast year | bzk-ww-i:NewBuildingsWithPurposeSaleIncome | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |