General information (Details)	12 Months Ended
Dec. 31, 2022 Subsidiaries CrudeCarrier t
Disclosure of subsidiaries [abstract]
Number of subsidiaries	33
Number of wholly owned subsidiaries	29
Number of not-wholly-owned subsidiaries	4
Number of large crude carriers \| CrudeCarrier	23
Total carrying capacity \| t	7,152,498
Top of Range [Member]
Disclosure of subsidiaries [abstract]
Weight of tankers \| t	320,000
Bottom of Range [Member]
Disclosure of subsidiaries [abstract]
Weight of tankers \| t	200,000
Marshall Island [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	19
Number of vessel-owning subsidiaries	17
Number of dormant subsidiaries	3
Cayman Islands [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	7
Number of vessel-owning subsidiaries	7
Singapore [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	2
Ownership interest	53.00%
Percentage of ownership by subsidiary	100.00%
Indirect ownership interest	53.00%
Monegasque [Member]
Disclosure of subsidiaries [abstract]
Ownership interest	99.00%
Norway [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	1
India [Member]
Disclosure of subsidiaries [abstract]
Indirect ownership interest	53.00%

Represents the number dormant subsidiaries of the entity.

No definition available.

Name:	dht_NumberOfDormantSubsidiaries
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of large crude carriers by the entity.

+ References

No definition available.

+ Details

Name:	dht_NumberOfLargeCrudeCarriers
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the number not-wholly-owned subsidiaries of the entity.

+ References

No definition available.

+ Details

Name:	dht_NumberOfNotWhollyOwnedSubsidiaries
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents number subsidiaries by the entity.

+ References

No definition available.

+ Details

Name:	dht_NumberOfSubsidiaries
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents number of vessel-owning subsidiaries by the entity.

+ References

No definition available.

+ Details

Name:	dht_NumberOfVesselOwningSubsidiaries
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents number of wholly owned subsidiaries by the entity.

+ References

No definition available.

+ Details

Name:	dht_NumberOfWhollyOwnedSubsidiaries
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The proportion of ownership interest in a subsidiary of the subsidiary.

+ References

No definition available.

+ Details

Name:	dht_PercentageOfOwnershipInterestBySubsidiary
Namespace Prefix:	dht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The proportion of indirect ownership interest in a subsidiary attributable to the entity.

+ References

No definition available.

+ Details

Name:	dht_ProportionOfIndirectOwnershipInterestInSubsidiary
Namespace Prefix:	dht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Total carrying capacity of tankers.

+ References

No definition available.

+ Details

Name:	dht_TotalCarryingCapacity
Namespace Prefix:	dht_
Data Type:	dtr-types:massItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents weight of tankers in different size ranges.

+ References

No definition available.

+ Details

Name:	dht_WeightOfTankers
Namespace Prefix:	dht_
Data Type:	dtr-types:massItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
-Paragraph 17
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
-Paragraph 16
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 19B
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	ifrs-full_GeographicalAreasAxis=dht_MonegasqueMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	ifrs-full_GeographicalAreasAxis=country_NO
Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
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