| r0.c0 | Number of independent rental properties permitted institution end 2020/Current | bzk-ww-i:NumberOfIndependentRentalProperties | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r1.c0 | Number of independent rental properties with a performance agreement on how to spend the income-related rent increase higher than the norm/Current | bzk-ww-i:NumberOfUnitsWithPerfomanceAgreement | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r2.c0 | Additional revenue from the higher rent increase than the norm/Current | bzk-ww-i:AdditionalRevenueFromHigherRentThanNorm | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r3.c0 | Number of independent rental properties relevant for the rent key in municipalities with performance agreements about higher rent increases/Current | bzk-ww-i:NumberOfIndependentRentalPropertiesRelevantForRentKey | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r4.c0 | Number of independent rental properties admitted to the institution relevant to the rent assessment in remaining municipalities without a performance agreement about higher rent increases/Current | bzk-ww-i:NumberOfIndependentRentalPropertiesRelevantForRentKeyWithoutPerfomanceAgreement | nl-types:nonNegativeInteger20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r5.c0 | Monthly rent in remaining municipalities of the numbers relevant to the test/Current | bzk-ww-i:MonthlyRentBasedOnNumbers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r6.c0 | Monthly rent in remaining municipalities of the numbers relevant to the test/Current | bzk-ww-i:MonthlyRentBasedOnNumbers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r7.c0 | Mutation monthly rent/Current | bzk-ww-i:MutationMonthlyRent | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r8.c0 | Rent increase/Current | bzk-ww-i:IncreaseRent | bzk-ww-types:percentFourDecimalsItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r9.c0 | In how many municipalities has the admitted institution made performance agreements about a higher rent increase in 2020?/Current | bzk-ww-i:NumberOfMunicapalitiesPerformanceAgreementsReportingYear | nl-types:nonNegativeInteger20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r10.c0 | Is the rent increase in the individual municipalities the same or lower than the performance agreement for the independent rental homes relevant to this test?/Current | bzk-ww-i:IndependentRentalPropertiesRelevantForRentKeyRentIncreaseEqualOrLowerThanPeformanceAgreement | nl-codes:yesNoItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r11.c0 | If not, in how many municipalities the rent increase is higher than the performance agreement/Current | bzk-ww-i:NumberOfMunicapalitiesRentIncreaseHigherThanPerformanceAgreement | nl-types:nonNegativeInteger20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |