| Name | nt.consolidation.acquisitionAccounting.explanationGoodwill |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-gaap-ci-2020-04-01 |
| Prefix | de-gaap-ci |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Erläuterung eines Badwill/Goodwill einschl. wesentlicher Änderungen gegenüber dem Vorjahr | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Explanation of goodwill/negative goodwill, including material changes compared with prior year | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | DRS 23 | http://www.xbrl.org/2003/role/reference |
| tradeAccountingNotPermittedFor | handelsrechtlicher Einzelabschluss | http://www.xbrl.org/2003/role/reference |
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 301 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 3 | http://www.xbrl.org/2003/role/reference |
| Clause | 2 | http://www.xbrl.org/2003/role/reference |