| r0.c0 | Other technical expenses for own account/kvk-table_1PeriodeVoorgaandTypeJaarrekening1SegmentatieAsDurationPeriodeZichtbaar_NotesConsolidatedOtherTechnicalExpensesForOwnAccountBreakdownInsuranceTable-x.1.1.1.1 | jenv-bw2-i:OtherTechnicalExpensesForOwnAccount | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r1.c0 | Gross other technical expenses for own account/kvk-table_1PeriodeVoorgaandTypeJaarrekening1SegmentatieAsDurationPeriodeZichtbaar_NotesConsolidatedOtherTechnicalExpensesForOwnAccountBreakdownInsuranceTable-x.1.1.1.1 | rj-i:OtherTechnicalExpensesForOwnAccountGross | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |
| r2.c0 | Reinsured part of the other technical expenses for own account/kvk-table_1PeriodeVoorgaandTypeJaarrekening1SegmentatieAsDurationPeriodeZichtbaar_NotesConsolidatedOtherTechnicalExpensesForOwnAccountBreakdownInsuranceTable-x.1.1.1.1 | rj-i:OtherTechnicalExpensesForOwnAccountReinsuredPart | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam |