| r0.c0 | Statement of changes in equity GAS 7/ | de-gaap-ci:table.eqCh | xbrli:stringItemType | duration | * | * |
| r1.c0 | Changes in carrying amounts in statement of changes in equity [dimension]/ | de-gaap-ci:eqCh_primaryItem | xbrli:stringItemType | duration | * | * |
| r2.c0 | Ending balance/ | de-gaap-ci:eqCh.group_all | xbrli:monetaryItemType | duration | * | * |
| r3.c0 | Beginning balance/ | de-gaap-ci:eqCh.group_beginning | xbrli:monetaryItemType | duration | * | * |
| r4.c0 | of which adjustment compared with prior-period ending balance/ | de-gaap-ci:eqCh.group.corrections | xbrli:monetaryItemType | duration | * | * |
| r5.c0 | Reasons for adjustment/ | de-gaap-ci:eqCh.group.corrections.comment | xbrli:stringItemType | duration | * | * |
| r6.c0 | Proceeds from issuance of shares/ | de-gaap-ci:eqCh.group.paidInCapital | xbrli:monetaryItemType | duration | * | * |
| r7.c0 | Acquisition/redemption of treasury shares/ | de-gaap-ci:eqCh.group.ownSharesPurchase | xbrli:monetaryItemType | duration | * | * |
| r8.c0 | Dividends paid/ | de-gaap-ci:eqCh.group.dividends | xbrli:monetaryItemType | duration | * | * |
| r9.c0 | Distributions/withdrawals for taxes of partners/shareholders/ | de-gaap-ci:eqCh.group.taxWithdrawals | xbrli:monetaryItemType | duration | * | * |
| r10.c0 | Reclassifications/ | de-gaap-ci:eqCh.group.movements | xbrli:monetaryItemType | duration | * | * |
| r11.c0 | Description of reclassifications/ | de-gaap-ci:eqCh.group.movements.comment | xbrli:stringItemType | duration | * | * |
| r12.c0 | Other changes/ | de-gaap-ci:eqCh.group.otherChanges | xbrli:monetaryItemType | duration | * | * |
| r13.c0 | Changes due to currency translation/ | de-gaap-ci:eqCh.group.otherChanges.currTransl | xbrli:monetaryItemType | duration | * | * |
| r14.c0 | Remeasurement gains and losses recognised outside profit or loss/ | de-gaap-ci:eqCh.group.otherChanges.revaluation | xbrli:monetaryItemType | duration | * | * |
| r15.c0 | Reasons for remeasurement/ | de-gaap-ci:eqCh.group.otherChanges.revaluation.comment | xbrli:stringItemType | duration | * | * |
| r16.c0 | sonstige Veränderung/ | de-gaap-ci:eqCh.group.otherChanges.other | xbrli:monetaryItemType | duration | * | * |
| r17.c0 | Reasons for other changes/ | de-gaap-ci:eqCh.group.otherChanges.other.comment | xbrli:stringItemType | duration | * | * |
| r18.c0 | Comprehensive income/ | de-gaap-ci:eqCh.group.groupResult | xbrli:monetaryItemType | duration | * | * |
| r19.c0 | Consolidated net income/net loss for the financial year/ | de-gaap-ci:eqCh.group.netIncome | xbrli:monetaryItemType | duration | * | * |
| r20.c0 | Other comprehensive income/ | de-gaap-ci:eqCh.group.otherResult | xbrli:monetaryItemType | duration | * | * |