XML 39 R30.htm IDEA: XBRL DOCUMENT v3.10.0.1

Subsequent events - Dividend payment (Details text) - $ / shares	3 Months Ended								9 Months Ended	12 Months Ended
	Nov. 23, 2018	Aug. 31, 2018	May 30, 2018	Feb. 28, 2018	Dec. 06, 2017	Aug. 31, 2017	May 31, 2017	Feb. 22, 2017	Sep. 30, 2018	Dec. 31, 2017
Dividend Payment [Abstract]
Per common share	$ 0.02	$ 0.02	$ 0.02	$ 0.02	$ 0.02	$ 0.02	$ 0.08	$ 0.08	$ 0.06	$ 0.20

X

- Definition

Disclosure of dividend payments.

+ References

No definition available.

+ Details

Name:	dht_DividendPaymentAbstract
Namespace Prefix:	dht_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of dividends paid per ordinary share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 34
-IssueDate 2017-01-01
-Paragraph 16A
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=34&date=2017-03-01&anchor=para_16A_f&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_DividendsPaidOrdinarySharesPerShare
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration