| r0.c0 | Assets (liabilities) of benefit plan/Current | ifrs-full:AssetsLiabilitiesOfBenefitPlan | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodPreviousEndDateParam |
| r1.c0 | kvk-table_ConsolidatedStatementOfChangesInNetAssetsAvailableForBenefitsIFRSFullTable-y.1/Current | | | | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodPreviousEndDateParam |
| r2.c0 | Employer contributions/Current | ifrs-full:EmployerContributions | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r3.c0 | Employee contributions/Current | ifrs-full:EmployeeContributions | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r4.c0 | Investment income/Current | ifrs-full:InvestmentIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r5.c0 | Other income/Current | ifrs-full:OtherIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r6.c0 | Benefits paid or payable/Current | ifrs-full:BenefitsPaidOrPayable | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r7.c0 | Administrative expenses/Current | ifrs-full:AdministrativeExpense | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r8.c0 | Other expense, by function/Current | ifrs-full:OtherExpenseByFunction | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r9.c0 | Tax expense (income)/Current | ifrs-full:IncomeTaxExpenseContinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r10.c0 | Profit (loss) on disposal of investments and changes in value of investments/Current | ifrs-full:ProfitsLossesOnDisposalOfInvestmentsAndChangesInValueOfInvestments | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r11.c0 | Transfers from (to) other retirement benefit plans/Current | ifrs-full:TransfersFromToOtherRetirementBenefitPlans | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r12.c0 | Increase (decrease) in net assets available for benefits/Current | ifrs-full:IncreaseDecreaseInNetAssetsAvailableForBenefits | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r13.c0 | kvk-table_ConsolidatedStatementOfChangesInNetAssetsAvailableForBenefitsIFRSFullTable-y.2/Current | | | | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam |
| r14.c0 | Assets (liabilities) of benefit plan/Current | ifrs-full:AssetsLiabilitiesOfBenefitPlan | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentEndDateParam |
| r15.c0 | kvk-table_ConsolidatedStatementOfChangesInNetAssetsAvailableForBenefitsIFRSFullTable-y.3/Current | | | | ifrs-full:ConsolidatedMember | $FinancialReportingPeriodCurrentEndDateParam |