| | concept | venj-bw2-i:LiabilitiesNoncurrent | x | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationComponentAxis | ocw-dm:LiabilitiesNoncurrentSpecificationComponentMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | venj-bw2-dim:ClassesOfLiabilitiesAxis | ocw-dm:LiabilitiesLocalGovernmentCommonRegulationsNoncurrentMember | y | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:LiabilitiesNoncurrent | x | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationComponentAxis | ocw-dm:LiabilitiesNoncurrentSpecificationComponentMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | venj-bw2-dim:ClassesOfLiabilitiesAxis | ocw-dm:LiabilitiesLocalGovernmentCommonRegulationsNoncurrentMember | y | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | period | xs:date('2017-12-31') | x | | venj-bw2-dim:ClassesOfLiabilitiesAxis | ocw-dm:LiabilitiesLocalGovernmentCommonRegulationsNoncurrentMember | y |
| | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | period | xs:date('2016-12-31') | x | | venj-bw2-dim:ClassesOfLiabilitiesAxis | ocw-dm:LiabilitiesLocalGovernmentCommonRegulationsNoncurrentMember | y |
|
| | concept | venj-bw2-i:LiabilitiesNoncurrent | x | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationComponentAxis | ocw-dm:LiabilitiesNoncurrentSpecificationComponentMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | concept | venj-bw2-i:LiabilitiesNoncurrent | x | | ocw-dim:ActualsEstimatesAxis | ocw-dm:ActualsMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationComponentAxis | ocw-dm:LiabilitiesNoncurrentSpecificationComponentMember | x | | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | venj-bw2-dim:FinancialStatementsTypeAxis | venj-bw2-dm:SeparateMember | x |
| | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | period | xs:date('2017-12-31') | x |
| | ocw-dim:LiabilitiesNoncurrentSpecificationItemAxis | * | y | | period | xs:date('2016-12-31') | x |
|