| Name | nt.directorsSign.person |
|---|---|
| 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 |
|---|---|---|---|
| Person | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Person (Unterschrift der Geschäftsleitung) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Person (signature of management) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Person | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 245 | http://www.xbrl.org/2003/role/reference |