| Name | nt.relationships.salariesActiveMembers.BoardsSpecification.personal |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-gaap-ci-2020-04-01 |
| Prefix | de-gaap-ci |
| Data type | None |
| Period type | None |
| Substitution Group | xbrli:tuple |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Bezüge der Organmitglieder und Angaben zum Aktienbesitz im einzelnen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Organmitglieder im einzelnen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Individual governing body members | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Remuneration of individual governing body members and disclosures on shareholdings | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 286 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 4 | http://www.xbrl.org/2003/role/reference |
| Name | HGB a.F. | http://www.xbrl.org/2003/role/reference |
| Paragraph | 286 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 5 | http://www.xbrl.org/2003/role/reference |
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 288 | http://www.xbrl.org/2003/role/reference |
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 314 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 1 | http://www.xbrl.org/2003/role/reference |
| Number | 6a | http://www.xbrl.org/2003/role/reference |
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 285 | http://www.xbrl.org/2003/role/reference |
| Number | 9a | http://www.xbrl.org/2003/role/reference |
| ValidThrough | 2020-12-31 | http://www.xbrl.org/2003/role/reference |