| Name | HGB a.F. | http://www.xbrl.org/2003/role/reference |
| Paragraph | 275 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 2 | http://www.xbrl.org/2003/role/reference |
| Number | 17 | http://www.xbrl.org/2003/role/reference |
| Name | HGB a.F. | http://www.xbrl.org/2003/role/reference |
| Paragraph | 275 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 3 | http://www.xbrl.org/2003/role/reference |
| Number | 16 | http://www.xbrl.org/2003/role/reference |
| ValidThrough | 2016-12-30 | http://www.xbrl.org/2003/role/reference |
| legalFormEU | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| legalFormKSt | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| legalFormPG | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| typeOperatingResult | neutral | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| fiscalRequirement | Rechnerisch notwendig, soweit vorhanden | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |