| r0.c0 | Disclosure of non-current liabilities/Current | venj-bw2-i:LiabilitiesNoncurrentDisclosure | nl-types:formattedExplanationItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r1.c0 | Disclosure of payables to group companies (non-current)/Current | ocw-i:LiabilitiesGroupCompaniesNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r2.c0 | Disclosure of payables to other related parties (non-current)/Current | ocw-i:LiabilitiesOtherRelatedPartiesNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r3.c0 | Disclosure of payables to credit institutions (non-current)/Current | ocw-i:LiabilitiesCreditInstitutionsNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r4.c0 | Disclosure of payables to OCW and EZ (non-current)/Current | ocw-i:LiabilitiesOCWAndEZNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r5.c0 | Disclosure of payables to the ministry of Finance (non-current)/Current | ocw-i:LiabilitiesMinistryOfFinanceNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r6.c0 | Disclosure of payables to local government and common regulations (non-current)/Current | ocw-i:LiabilitiesLocalGovernmentCommonRegulationsNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r7.c0 | Disclosure of other payables (non-current)/Current | ocw-i:LiabilitiesOtherNoncurrentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |