| r0.c0 | Total market value/Forecast reporting year | bzk-ww-i:TotalMarketValue | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |
| r1.c0 | Market value units living space/Forecast reporting year | bzk-ww-i:MarketValueUnitsLivingSpace | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |
| r2.c0 | Market value units excluding living space/Forecast reporting year | bzk-ww-i:MarketValueUnitsExcludingLivingSpace | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:CompoundNonDAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |