| ValidSince | 2012-12-31 | http://www.xbrl.org/2003/role/reference |
| Name | HGB | http://www.xbrl.org/2003/role/reference |
| Paragraph | 275 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 5 | http://www.xbrl.org/2003/role/reference |
| Number | 7 | http://www.xbrl.org/2003/role/reference |
| legalFormEU | false | 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 | GKV | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| fiscalRequirement | Summenmussfeld | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |