| r0.c0 | Under the retirement age, income lower or equal to income limit Wht, two person households/bzk-table_NumberOfAssignmentsTwoPersonHouseholdsConsolidatedHousingDviTable-x.1.1.1.1 | bzk-dvi-i:UnderRetirementAgeIncomeLowerOrEqualToIncomeLimitWhtSinglePersonHouseholdsTwoPersonHouseholds | xbrli:nonNegativeIntegerItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r1.c0 | Under the retirement age, income higher than income limit Wht, two person households/bzk-table_NumberOfAssignmentsTwoPersonHouseholdsConsolidatedHousingDviTable-x.1.1.1.1 | bzk-dvi-i:UnderRetirementAgeIncomeHigherThanIncomeLimitWhtSinglePersonHouseholdsTwoPersonHouseholds | xbrli:nonNegativeIntegerItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r2.c0 | Above the retirement age, income lower or equal to income limit Wht, two person households/bzk-table_NumberOfAssignmentsTwoPersonHouseholdsConsolidatedHousingDviTable-x.1.1.1.1 | bzk-dvi-i:AboveRetirementAgeIncomeLowerOrEqualToIncomeLimitWhtSinglePersonHouseholdsTwoPersonHouseholds | xbrli:nonNegativeIntegerItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r3.c0 | Above the retirement age, income lower higher than income limit Wht, two person households/bzk-table_NumberOfAssignmentsTwoPersonHouseholdsConsolidatedHousingDviTable-x.1.1.1.1 | bzk-dvi-i:AboveRetirementAgeIncomeHigherThanIncomeLimitWhtSinglePersonHouseholdsTwoPersonHouseholds | xbrli:nonNegativeIntegerItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r4.c0 | Number of assignments per rental limit/bzk-table_NumberOfAssignmentsTwoPersonHouseholdsConsolidatedHousingDviTable-x.1.1.1.1 | bzk-dvi-i:NumberOfAssignmentsPerRentalLimitSinglePersonHouseholdsTwoPersonHouseholds | xbrli:nonNegativeIntegerItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |