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| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexSmallerOrEqualToZeroPointSix | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointSixAndSmallerOrEqualToZeroPointEight | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanZeroPointEightAndSmallerOrEqualToOnePointTwo | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointTwoAndSmallerOrEqualToOnePointFour | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointFourAndSmallerOrEqualToOnePointEight | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanOnePointEightAndSmallerOrEqualToTwoPointOne | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointOneAndSmallerOrEqualToTwoPointFour | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointFourAndSmallerOrEqualToTwoPointSeven | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexHigherThanTwoPointSeven | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:EnergyIndexUnknown | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodCurrentEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodFirstPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodSecondPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodThirdPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodFourthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
| | concept | bzk-aw-wsw-i:NumberToEnergyIndex | y | | period | $FinancialReportingPeriodFifthPeriodEndDateParam | x | | venj-bw2-dim:BasisOfPreparationAxis | $BasisOfPreparationParam | x | | venj-bw2-dim:FinancialStatementsTypeAxis | bzk-aw-wsw-dm:NonDaebAndCompoundMember | x |
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