| r0.c0 | Number of units living space/First forecast year | bzk-ww-i:NumberOfUnitsLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFirstPeriodEndDateParam |
| r0.c1 | Number of units living space/Second forecast year | bzk-ww-i:NumberOfUnitsLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodSecondPeriodEndDateParam |
| r0.c2 | Number of units living space/Third forecast year | bzk-ww-i:NumberOfUnitsLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodThirdPeriodEndDateParam |
| r0.c3 | Number of units living space/Fourth forecast year | bzk-ww-i:NumberOfUnitsLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFourthPeriodEndDateParam |
| r0.c4 | Number of units living space/Fifth forecast year | bzk-ww-i:NumberOfUnitsLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFifthPeriodEndDateParam |
| r1.c0 | Number of units excluding living space/First forecast year | bzk-ww-i:NumberOfUnitsExcludingLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFirstPeriodEndDateParam |
| r1.c1 | Number of units excluding living space/Second forecast year | bzk-ww-i:NumberOfUnitsExcludingLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodSecondPeriodEndDateParam |
| r1.c2 | Number of units excluding living space/Third forecast year | bzk-ww-i:NumberOfUnitsExcludingLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodThirdPeriodEndDateParam |
| r1.c3 | Number of units excluding living space/Fourth forecast year | bzk-ww-i:NumberOfUnitsExcludingLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFourthPeriodEndDateParam |
| r1.c4 | Number of units excluding living space/Fifth forecast year | bzk-ww-i:NumberOfUnitsExcludingLivingSpace | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFifthPeriodEndDateParam |
| r2.c0 | Number of units/First forecast year | bzk-ww-i:NumberOfUnits | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFirstPeriodEndDateParam |
| r2.c1 | Number of units/Second forecast year | bzk-ww-i:NumberOfUnits | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodSecondPeriodEndDateParam |
| r2.c2 | Number of units/Third forecast year | bzk-ww-i:NumberOfUnits | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodThirdPeriodEndDateParam |
| r2.c3 | Number of units/Fourth forecast year | bzk-ww-i:NumberOfUnits | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFourthPeriodEndDateParam |
| r2.c4 | Number of units/Fifth forecast year | bzk-ww-i:NumberOfUnits | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFifthPeriodEndDateParam |