| r0.c0 | Number of rental agreements regarding housing facilities/Current | bzk-dvi-i:NumberOfRentalAgreements | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:DAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |
| r1.c0 | Number of rental agreements of yearly household income to lowest income limit and allocations to students, beneficiaries and care recipients/Current | bzk-dvi-i:NumberOfRentalAgreementslHouseholdIncomeUpToLowestIncomeLimit | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:DAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |
| r2.c0 | Number of rental agreements of yearly household income from lowest to highest income limit (€)/Current | bzk-dvi-i:NumberOfRentalAgreementslHouseholdIncomeFromLowestIncomeLimitToHighestIncomeLimit | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:DAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |
| r3.c0 | Number of rental agreements of yearly household income from highest income limit (€)/Current | bzk-dvi-i:NumberOfRentalAgreementslHouseholdIncomeFromHighestIncomeLimit | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | bzk-ww-dm:DAEBActivitiesMember | $FinancialReportingPeriodCurrentEndDateParam |