| r0.c0 | Price increase variable expenses/Forecast reporting year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r0.c1 | Price increase variable expenses/First forecast year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r0.c2 | Price increase variable expenses/Second forecast year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r0.c3 | Price increase variable expenses/Third forecast year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r0.c4 | Price increase variable expenses/Fourth forecast year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r0.c5 | Price increase variable expenses/Fifth forecast year | bzk-ww-i:PriceIncreaseVariableExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |
| r1.c0 | Price increase maintenance expenses/Forecast reporting year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r1.c1 | Price increase maintenance expenses/First forecast year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r1.c2 | Price increase maintenance expenses/Second forecast year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r1.c3 | Price increase maintenance expenses/Third forecast year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r1.c4 | Price increase maintenance expenses/Fourth forecast year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r1.c5 | Price increase maintenance expenses/Fifth forecast year | bzk-ww-i:PriceIncreaseMaintenanceExpensesPercentage | bzk-ww-types:percentMax1ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |