| r0.c0 | Disclosure of government contributions/Current | ocw-i:GovernmentContributionsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r1.c0 | Disclosure of central government contributions/Current | ocw-i:GovernmentContributionsCentralGovernmentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r2.c0 | Informatieverschaffing over fovernment contributions from OCW and EZ/Current | ocw-i:GovernmentContributionsOCWAndEZDisclosure | 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 government contributions from OCW/Current | ocw-i:GovernmentContributionsOCWDisclosure | 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 government contributions from EZ/Current | ocw-i:GovernmentContributionsEZDisclosure | 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 government contributions from OCW and EZ [title]/Current | ocw-abstr:GovernmentContributionsOCWAndEZDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r6.c0 | Disclosure of other subsidies from OCW and EZ/Current | ocw-i:GovernmentSubsidiesOCWAndEZDisclosure | 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 subsidies from OCW/Current | ocw-i:GovernmentSubsidiesOCWDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r8.c0 | Disclosure of other subsidies from EZ/Current | ocw-i:GovernmentSubsidiesEZDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r9.c0 | Disclosure of subsidies from OCW and EZ [title]/Current | ocw-abstr:GovernmentSubsidiesOCWAndEZDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r10.c0 | Disclosure of income transfers of government contributions/Current | ocw-i:GovernmentContributionsIncomeTransfersDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r11.c0 | Disclosure of income transfers of government contributions to university hospitals/Current | ocw-i:GovernmentContributionsIncomeTransfersUniversityHospitalsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r12.c0 | Disclosure of income transfers of government contributions [title]/Current | ocw-abstr:GovernmentContributionsIncomeTransfersDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r13.c0 | Disclosure of other central government contributions/Current | ocw-i:GovernmentContributionsOtherCentralGovernmentsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r14.c0 | Disclosure of central government contributions [title]/Current | kvk-abstr:CentralGovernmentContributionsDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r15.c0 | Disclosure of government contributions and subsidies overige overheden/Current | ocw-i:GovernmentContributionsSubsidiesOtherGovernmentsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r16.c0 | Disclosure of community participation budget/Current | ocw-i:GovernmentContributionCommunityParticipationDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r17.c0 | Disclosure of community participation budget for education/Current | ocw-i:GovernmentContributionCommunityParticipationEducationDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r18.c0 | Disclosure of community participation budget for reintegration/Current | ocw-i:GovernmentContributionCommunityParticipationReintegrationDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r19.c0 | Disclosure of community participation budget for assimilation/Current | ocw-i:GovernmentContributionCommunityParticipationAssimilationDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r20.c0 | Disclosure of community participation budget [title]/Current | ocw-abstr:GovernmentContributionCommunityParticipationDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r21.c0 | Disclosure of other contributions and subsidies, other governments, total/Current | ocw-i:OtherContributionsSubsidiesOtherGovernmentsTotalDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r22.c0 | Disclosure of other contributions and subsidies, regional government/Current | ocw-i:OtherContributionsSubsidiesRegionalGovernmentDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r23.c0 | Disclosure of other contributions and subsidies, local government and common regulations/Current | ocw-i:OtherContributionsSubsidiesLocalGovernmentCommonRegulationsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r24.c0 | Disclosure of other contributions and subsidies, other governments/Current | ocw-i:OtherContributionsSubsidiesOtherGovernmentsDisclosure | nl-types:string100000ItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r25.c0 | Disclosure of other government contributions and subsidies other governments [title]/Current | ocw-abstr:OtherGovernmentContributionsSubsidiesOtherGovernmentsDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |
| r26.c0 | Disclosure of government contributions and subsidies other governments [title]/Current | ocw-abstr:GovernmentContributionsSubsidiesOtherGovernmentsDisclosureTitle | xbrli:stringItemType | duration | ocw-dm:ActualsMember | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:SeparateMember |