Stockholders' equity and dividend payment, Stock Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Stock Repurchases [Abstract]
Share repurchases (in shares)	1,481,383	2,209,927	4,326,379
Percentage of outstanding shares	0.90%
Aggregate consideration	$ 13,196	$ 18,808	$ 24,758
Average price (in dollars per share)	$ 8.89	$ 8.49	$ 5.71

The percentage of shares that have been repurchased during the period and are being held in treasury.

No definition available.

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Data Type:	dtr-types:percentItemType
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Period Type:	duration

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

No definition available.

+ Details

Name:	dht_PurchaseOfTreasuryStock
Namespace Prefix:	dht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Average price per share of shares repurchased in open market.

+ References

No definition available.

+ Details

Name:	dht_TreasuryStockPricePerShare
Namespace Prefix:	dht_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration