| r0.c0 | Disclosure of expenses/Current | jenv-bw2-i:ExpensesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r1.c0 | Disclosure of expenses of employee benefits/Current | jenv-bw2-i:EmployeeBenefitsExpensesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r2.c0 | Disclosure of wages, salaries, social security contributions, and pension costs/Current | ocw-i:WagesSalariesSocialSecurityContributionsPensionCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r3.c0 | Disclosure of wages and salaries/Current | jenv-bw2-i:WagesSalariesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r4.c0 | Disclosure of social security contributions/Current | jenv-bw2-i:SocialSecurityContributionsDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r5.c0 | Disclosure of participation fund contributions/Current | ocw-i:ParticipationFundContributionsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r6.c0 | Disclosure of replacement fund contributions/Current | ocw-i:ReplacementFundContributionsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r7.c0 | Disclosure of pension costs/Current | jenv-bw2-i:PensionCostsDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r8.c0 | Disclosure of wages, salaries, social security contributions, and pension costs [title]/Current | ocw-abstr:WagesSalariesSocialSecurityContributionsPensionCostsDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r9.c0 | Disclosure of other expenses of employee benefits/Current | rj-i:EmployeeBenefitsExpensesOtherDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r10.c0 | Disclosure of allocation employee benefits/Current | ocw-i:EmployeeBenefitsAllocationDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r11.c0 | Disclosure of expenses for personnel non on payroll/Current | ocw-i:PersonnelNotOnPayrollExpensesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r12.c0 | Disclosure of other personnel related expenses, other/Current | ocw-i:OtherEmployeeBenefitsExpensesOtherDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r13.c0 | Disclosure of other personnel related expenses [title]/Current | ocw-abstr:EmployeeBenefitsExpensesOtherDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r14.c0 | Disclosure of payments received reducing personnel expenses/Current | ocw-i:PaymentsReceivedReducingPersonnelExpensesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r15.c0 | Disclosure of partipation fund compensations/Current | ocw-i:ParticipationFundCompensationsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r16.c0 | Disclosure of replacement fund compensations/Current | ocw-i:ReplacementFundCompensationsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r17.c0 | Disclosure of other payments received reducing personnel expenses/Current | ocw-i:OtherPaymentsReceivedReducingPersonnelExpensesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r18.c0 | Disclosure of compensation payments received [title]/Current | ocw-abstr:CompensationReceivedDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r19.c0 | Disclosure of employee expenses [title]/Current | ocw-abstr:EmployeeExpensesDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r20.c0 | Disclosure of amortisation of intangible assets and depreciation of property, plant and equipment/Current | jenv-bw2-i:DepreciationPropertyPlantEquipmentAmortisationIntangibleAssetsDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r21.c0 | Disclosure of amortisation of intangible assets/Current | jenv-bw2-i:AmortisationIntangibleAssetsDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r22.c0 | Disclosure of depreciation of property, plant and equipment/Current | jenv-bw2-i:DepreciationPropertyPlantEquipmentDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r23.c0 | Amortisation of intangible assets and depreciation of property, plant and equipment/Current | kvk-abstr:DepreciationPropertyPlantEquipmentAmortisationIntangibleAssetsDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r24.c0 | Disclosure of accommodation costs/Current | rj-i:AccommodationCostsDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r25.c0 | Disclosure of rental expenses/Current | ocw-i:AccommodationRentalCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r26.c0 | Disclosure of insurance costs/Current | ocw-i:AccommodationInsuranceCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r27.c0 | Disclosure of accommodation maintenance and repair costs/Current | ocw-i:AccommodationMaintenanceAndRepairCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r28.c0 | Disclosure of energy and water costs/Current | ocw-i:AccommodationEnergyWaterCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r29.c0 | Disclosure of cleaning costs/Current | ocw-i:AccommodationCleaningCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r30.c0 | Disclosure of environmental and building taxes/Current | ocw-i:AccommodationEnvironmentalAndBuildingTaxesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r31.c0 | Disclosure of additions for accomodation related maintenance provisions/Current | ocw-i:AccommodationMaintenanceProvisionsAdditionsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r32.c0 | Disclosure of other accomodation costs/Current | ocw-i:AccommodationCostsOtherDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r33.c0 | Disclosure of accommodation costs/Current | kvk-abstr:AccommodationCostsDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r34.c0 | Disclosure of other operating expenses/Current | jenv-bw2-i:OperatingExpensesOtherDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r35.c0 | Disclosure of general and administrative expenses/Current | jenv-bw2-i:GeneralAdministrativeExpensesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r36.c0 | Disclosure of costs of inventory and appliances/Current | ocw-i:InventoryAppliancesCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r37.c0 | Disclosure of expenses for teaching materials/Current | ocw-i:TeachingMaterialsCostsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r38.c0 | Disclosure of allocation for other operational facilities/Current | ocw-i:OperationalFacilitiesOtherAllocationDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r39.c0 | Disclosure of other expenses, other/Current | ocw-i:OtherOperationalExpensesOtherDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r40.c0 | Other expenses/Current | kvk-abstr:ExpensesOtherDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r41.c0 | Disclosure of income transfers of government contributions to school boards/Current | ocw-i:GovernmentContributionsIncomeTransfersSchoolBoardsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r42.c0 | Disclosure of mandatory income tranfers to be executed by OCW/Current | ocw-i:MandatoryIncomeTransfersToBeExecutedByOCWDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r43.c0 | Disclosure of mandatory income tranfers to be executed by OCW to (v)so/Current | ocw-i:MandatoryIncomeTransfersToBeExecutedByOCWToVsoDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r44.c0 | Disclosure of mandatory income tranfers to be executed by OCW to Lwoo/Current | ocw-i:MandatoryIncomeTransfersToBeExecutedByOCWToLwooDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r45.c0 | Disclosure of mandatory income tranfers to be executed by OCW to pro/Current | ocw-i:MandatoryIncomeTransfersToBeExecutedByOCWToProDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r46.c0 | Disclosure of mandatory income tranfers to be executed by OCW [title]/Current | ocw-abstr:MandatoryIncomeTransfersToBeExecutedByOCWDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r47.c0 | Disclosure of income transfer based on 1st of February/Current | ocw-i:IncomeTransferBasedOnFirstOfFebruaryDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r48.c0 | Disclosure of income transfer based on 1st of February to (v)so/Current | ocw-i:IncomeTransferBasedOnFirstOfFebruaryToVsoDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r49.c0 | Disclosure of income transfer based on 1st of February to sbo/Current | ocw-i:IncomeTransferBasedOnFirstOfFebruaryToSboDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r50.c0 | Disclosure of income transfer based on 1st of February [title]/Current | ocw-abstr:IncomeTransferBasedOnFirstOfFebruaryDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r51.c0 | Disclosure of other income transfers of government contributions to school boards/Current | ocw-i:GovernmentContributionsIncomeTransfersSchoolBoardsOtherDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r52.c0 | Disclosure of income tranfers to school boards [title]/Current | ocw-abstr:GovernmentContributionsIncomeTransfersSchoolBoardsDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r53.c0 | Disclosure of revaluation reserve realised/Current | ocw-i:RevaluationReserveRealisedDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r54.c0 | Disclosure of auditors fees/Current | jenv-bw2-i:AuditorsFeesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r55.c0 | Disclosure of auditors' fees, audit of the financial statements/Current | ocw-i:AuditorsFeesAuditFinancialStatementsDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r56.c0 | Disclosure of auditors' fees, other audit procedures/Current | ocw-i:AuditorsFeesOtherAuditProceduresDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r57.c0 | Disclosure of auditors' fees relating to tax services/Current | ocw-i:AuditorsFeesTaxServicesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r58.c0 | Disclosure of auditors' fees relating to other non-audit procedures/Current | ocw-i:AuditorsFeesOtherNonAuditServicesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |
| r59.c0 | Disclosure of organisational auditor fees separate specification [title]/Current | ocw-abstr:AuditorsFeesSeparateSpecificationDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2018-01-01')/xs:date('2018-12-31') |