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| | concept | venj-bw2-i:LiabilitiesCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PayablesGroupCompaniesCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesOtherParticipationsCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PayablesCreditInstitutionsCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesOCWAndEZCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesFINCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesLocalGovernmentCommonRegulationsCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | rj-i:ConstructionContractsLiabilitiesDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:TradePayablesCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:TaxesSocialSecurityContributionsPayableCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PensionPayablesCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesThirdPartyContractsDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PayablesOtherCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:LiabilitiesCurrentExcludingAccrualsSubtotalDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:AccrualsAndDeferredIncomeCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedTuitionFeesDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesOCWAndEZDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesInvestmentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedPeriodicPaymentsDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesHolidaysAndHolidayPayDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:InterestPayableDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AccrualsOtherCurrentDisclosure | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-abstr:AccrualsAndDeferredIncomeCurrentDisclosureTitle | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-01-01')/xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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