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General information (Details)	12 Months Ended
	Dec. 31, 2025 CrudeCarrier Subsidiaries t
Disclosure of subsidiaries [abstract]
Number of subsidiaries	34
Number of wholly owned subsidiaries	33
Number of large crude carriers | CrudeCarrier	22
Total carrying capacity | t	6,840,114
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	270,000
Marshall Island [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	27
Number of vessel-owning subsidiaries	27
Number of newbuilding subsidiaries	4
Number of vessel sold subsidiaries	1
Singapore [Member]
Disclosure of subsidiaries [abstract]
Number of wholly owned subsidiaries	4
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]
Number of wholly owned subsidiaries	1

X

- Definition

Number of large crude carriers by the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
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X

- Definition

This element represents number of newbuilding subsidiaries by the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
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Period Type:	duration

X

- Definition

This element represents number subsidiaries by the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
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Balance Type:	na
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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

This element represents number of vessels sold subsidiaries by the entity.

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
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Balance Type:	na
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X

- Definition

Total carrying capacity of tankers.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:massItemType
Balance Type:	na
Period Type:	instant

X

- Definition

This element represents weight of tankers in different size ranges.

+ References

No definition available.

+ Details

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

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- References

No definition available.

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2025-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2025-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2025-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2025-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2025-01-01
-Paragraph 19B
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2025-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2025-03-27

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