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| r0.c1 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y.1/Financial assets | venj-bw2-i:FinancialAssets | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | ocw-dm:FinancialAssetsSpecificationComponentMember | * | N/A | venj-bw2-dm:ReceivablesOtherNoncurrentMember | venj-bw2-dm:SeparateMember |
| r0.c2 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y.1/Current | | | | N/A | N/A | * | xs:date('2017-12-31') | venj-bw2-dm:ReceivablesOtherNoncurrentMember | N/A |
| r0.c3 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y.1/Previous | | | | N/A | N/A | * | xs:date('2016-12-31') | venj-bw2-dm:ReceivablesOtherNoncurrentMember | N/A |
| r1.c0 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y/Financial assets | venj-bw2-i:FinancialAssets | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | ocw-dm:FinancialAssetsSpecificationComponentMember | * | N/A | N/A | venj-bw2-dm:SeparateMember |
| r1.c1 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y/Financial assets | venj-bw2-i:FinancialAssets | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | ocw-dm:FinancialAssetsSpecificationComponentMember | * | N/A | N/A | venj-bw2-dm:SeparateMember |
| r1.c2 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y/Current | | | | N/A | N/A | * | xs:date('2017-12-31') | N/A | N/A |
| r1.c3 | ocw-table_NotesFinancialAssetsReceivablesOtherNoncurrentSpecification-y/Previous | | | | N/A | N/A | * | xs:date('2016-12-31') | N/A | N/A |