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Financial risk management, objectives and policies, ING Credit Facility (Details) $ in Thousands		12 Months Ended
	Jan. 31, 2023 USD ($) Borrower	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Credit Facility [Abstract]
Borrowings		$ 396,696	$ 522,299
ING Credit Facility [Member]
Credit Facility [Abstract]
Frequency of periodic repayment		quarterly
ING Credit Facility [Member] | Subsequent events [Member]
Credit Facility [Abstract]
Borrowings	$ 405,000
Uncommitted incremental facility	$ 100,000
Number of borrowers | Borrower	10
Debt repayment installment amount	$ 6,300
ING Credit Facility [Member] | SOFR [Member] | Subsequent events [Member]
Credit Facility [Abstract]
Adjustment to interest rate basis	1.90%
Percentage of historical Credit Adjustment Spread (CAS)	0.0026
ING Credit Facility [Member] | Bottom of Range [Member]
Credit Facility [Abstract]
Credit facility covenant, required percentage of charter-free market value of vessels to borrowings		135.00%
Credit facility covenant, required adjusted tangible net worth		$ 300,000
Credit facility covenant, required percentage of adjusted tangible net worth to total assets		25.00%
Credit facility covenant, required unencumbered consolidated cash		$ 30,000
Credit facility covenant, required percentage of unencumbered consolidated cash to gross interest bearing debt		6.00%

X

- Definition

The percentage added to the reference rate to compute the variable rate on the debt instrument relating to historical Credit Adjustment Spread (CAS).

+ References

No definition available.

+ Details

Name:	dht_BorrowingsHistoricalCreditAdjustmentSpreadCAS
Namespace Prefix:	dht_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of adjusted tangible net worth required to be maintained to fulfill Credit facility covenant.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The percentage of adjusted tangible net worth to adjusted total assets value required to be maintained to fulfill Credit facility covenant.

+ References

No definition available.

+ Details

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X

- Definition

The percentage of unencumbered consolidated cash to gross interest bearing debt required to be maintained to fulfill credit facility covenant.

+ References

No definition available.

+ Details

Name:	dht_CreditFacilityCovenantRequiredPercentageOfUnencumberedConsolidatedCashToGrossInterestBearingDebt
Namespace Prefix:	dht_
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Balance Type:	na
Period Type:	duration

X

- Definition

The amount of unencumbered consolidated cash required to be maintained to fulfill Credit facility covenant.

+ References

No definition available.

+ Details

Name:	dht_CreditFacilityCovenantRequiredUnencumberedConsolidatedCash
Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Refers to the required percentage of the charter-free market value of the vessels to the borrowings under the covenants of the credit facility.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Definition

Amount of the required periodic installment payments including both interest and principal payments.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

The description of the frequency of periodic repayment of credit facility.

+ References

No definition available.

+ Details

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

X

- Definition

This element represents number of borrowers.

+ References

No definition available.

+ Details

Name:	dht_NumberOfBorrowers
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Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

Uncommitted accordion available with the facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

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X

- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
-URIDate 2022-03-24

+ 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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