| Intangible assets and goodwill | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Intangible assets and goodwill at beginning of period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Intangible assets and goodwill at end of period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Total intangible assets and goodwill | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Immaterielle aktiver og goodwill | da | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Den beløbsmæssige størrelse af immaterielle aktiver og goodwill, som virksomheden besidder. [Reference: goodwill, immaterielle aktiver bortset fra goodwill] | da | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Immaterielle aktiver og goodwill, i alt | da | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Immaterielle aktiver og goodwill i begyndelsen af regnskabsåret | da | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Immaterielle aktiver og goodwill ved slutningen af regnskabsåret | da | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |