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| | concept | venj-bw2-i:PayablesGroupCompaniesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:PayablesGroupCompaniesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesOtherParticipationsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesOtherParticipationsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PayablesCreditInstitutionsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:PayablesCreditInstitutionsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesOCWAndEZCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesOCWAndEZCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesFINCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesFINCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesLocalGovernmentCommonRegulationsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesLocalGovernmentCommonRegulationsCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | rj-i:ConstructionContractsLiabilities | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | rj-i:ConstructionContractsLiabilities | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:TradePayablesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:TradePayablesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:TaxesSocialSecurityContributionsPayableCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:TaxesSocialSecurityContributionsPayableCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PensionPayablesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:PensionPayablesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesThirdPartyContracts | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesThirdPartyContracts | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:PayablesOtherCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:PayablesOtherCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:LiabilitiesCurrentExcludingAccrualsSubtotal | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:LiabilitiesCurrentExcludingAccrualsSubtotal | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedTuitionFees | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:AdvancesReceivedTuitionFees | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesOCWAndEZ | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesOCWAndEZ | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesInvestment | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:AdvancesReceivedGovernmentSubsidiesInvestment | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AdvancesReceivedPeriodicPayments | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:AdvancesReceivedPeriodicPayments | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:PayablesHolidaysAndHolidayPay | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:PayablesHolidaysAndHolidayPay | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:InterestPayable | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:InterestPayable | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-i:AccrualsOtherCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-i:AccrualsOtherCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | ocw-abstr:AccrualsBreakdownTitle | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | ocw-abstr:AccrualsBreakdownTitle | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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| | concept | venj-bw2-i:LiabilitiesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:LiabilitiesCurrent | y | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
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