| Gains (losses) on change in fair value of derivatives | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Net gains (losses) on change in fair value of derivatives | en | http://www.xbrl.org/2009/role/netLabel | http://www.xbrl.org/2003/role/link |
| The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Gevinster (tab) hidrørende fra ændringer i dagsværdien af afledte finansielle instrumenter | da | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gevinsterne (tabene) hidrørende fra ændringer i dagsværdien af afledte finansielle instrumenter, der er indregnet i resultatet. [Reference: afledte finansielle instrumenter [member]] | da | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Nettogevinster (nettotab) hidrørende fra ændringer i dagsværdien af afledte finansielle instrumenter | da | http://www.xbrl.org/2009/role/netLabel | http://www.xbrl.org/2003/role/link |