| Name | isBanks.retainedEarningsPrevYear |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-fi-2021-04-14 |
| Prefix | de-fi |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| 28. Verlustvortrag aus dem Vorjahr | de | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 28. Gewinnvortrag aus dem Vorjahr | de | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 28. Gewinnvortrag/Verlustvortrag aus dem Vorjahr | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 28. Retained profits/accumulated losses brought forward | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 28. Accumulated losses brought forward | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 28. Retained profits brought forward | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| legalFormKSt | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| legalFormPG | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| fiscalRequirement | Mussfeld | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
de-fi:isBanks | parent-child | http://www.xbrl.de/taxonomies/de-fi/role/incomeStatementStf | |
de-fi:isBanks.netIncomeAndRetainedEarnings | summation-item | http://www.xbrl.de/taxonomies/de-fi/role/incomeStatementStf |