| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam | x |
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| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaebNonDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaebNonDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaebNonDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaebNonDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam | x |
| | concept | bzk-ww-i:InterestRateOnNewLoansPercentageDaebNonDaeb | y | | jenv-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | jenv-bw2-dim:FinancialStatementsTypeAxis | jenv-bw2-dm:ConsolidatedMember | x | | period | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam | x |
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