XML 37 R28.htm IDEA: XBRL DOCUMENT v3.10.0.1

Stockholders equity and dividend payment - Stockholders equity (Details)	Sep. 30, 2018 $ / shares shares
Common Stock [Member]
Stockholders' equity
Issued at September 30, 2018	143,592,543
Numbers of shares authorized for issue at September 30, 2018	250,000,000
Par value | $ / shares	$ 0.01
Common Stock [Member] | Convertible Notes due 2019 [Member]
Stockholders' equity
Shares to be issued assuming conversion of convertible notes	6,562,001
Common Stock [Member] | Convertible Notes due 2021 [Member]
Stockholders' equity
Shares to be issued assuming conversion of convertible notes	19,968,375
Preferred Stock [Member]
Stockholders' equity
Numbers of shares authorized for issue at September 30, 2018	1,000,000
Par value | $ / shares	$ 0.01

X

- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

No definition available.

+ Details

Name:	dht_CommonStockSharesIssued
Namespace Prefix:	dht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares to be issued assuming conversion of convertible notes.

+ References

No definition available.

+ Details

Name:	dht_SharesToBeIssuedAssumingConversionOfConvertibleNotes
Namespace Prefix:	dht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Disclosure of stockholders' equity.

+ References

No definition available.

+ Details

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

X

- Definition

The number of shares authorised.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 79
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a_i&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_NumberOfSharesAuthorised
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a_iii&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	dht_ComponentsOfStockholdersEquityAxis=dht_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dht_ComponentsOfConvertibleEquityAxis=dht_ConvertibleNotesDue2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dht_ComponentsOfConvertibleEquityAxis=dht_ConvertibleNotesDue2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dht_ComponentsOfStockholdersEquityAxis=dht_PreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: