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

Refers to percentage of Credit Facility contains a covenant requiring that at all times the charter-free market value of the vessels that secure the Credit Agricole Credit Facility of borrowings.

No definition available.

Name:	dht_CovenantsRequiringAllTimesCharterFreeMarketValueOfVessels
Namespace Prefix:	dht_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

No definition available.

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

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

No definition available.

Name:	dht_CreditFacilityCovenantAdjustedTangibleNetWorthToTotalAssets
Namespace Prefix:	dht_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

No definition available.

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

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

No definition available.

Name:	dht_CreditFacilityCovenantUnencumberedConsolidatedCashToGrossInterestBearingDebt
Namespace Prefix:	dht_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The number of installments for principal repayments of borrowings.

No definition available.

Name:	dht_CreditFacilityPrincipalRepaymentsNumberOfInstallments
Namespace Prefix:	dht_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the period between issuance and maturity of credit facility.

No definition available.

Name:	dht_CreditFacilityTerm
Namespace Prefix:	dht_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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

No definition available.

Name:	dht_DebtInstrumentPeriodicInstallmentPayment
Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of prepayment of debt for final settlement.

No definition available.

Name:	dht_DebtRepaymentFinalAmount
Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

No definition available.

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

The amount of non cash expense related to upfront financing fees recognized by the entity.

No definition available.

Name:	dht_NoncashFinanceExpenseRelatedToUpfrontFees
Namespace Prefix:	dht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of VLCC refinanced during the period.

No definition available.

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

Number of VLCCs executed a credit facility to fund the acquisition to be constructed at HHI through a secured term loan facility between and among ABN AMRO, DVB and Nordea as lenders, three vessel-owning companies as borrowers, and DHT Holdings, Inc. as guarantor.

No definition available.

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

Period for additional repayments of a variable amount equal to free cash flow in the prior quarter capped per quarter to be applied against the balloon. Free cash flow was defined as an amount calculated as of the last day of each quarter equal to the positive difference, if any, between (a) the sum of the earnings of the vessels during the quarter and (b) the sum of ship operating expenses, voyage expenses, estimated capital expenses for the following two quarters, general & administrative expenses, interest expenses and change in working capital.

No definition available.

Name:	dht_PeriodToMakeAdditionalRepaymentEqualToFreeCashFlowInPriorQuarter
Namespace Prefix:	dht_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

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

- References

No definition available.

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

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The maturity of borrowings. [Refer: Borrowings]

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

Name:	ifrs-full_BorrowingsByNameAxis=dht_TheABNAMROCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_CreationDateAxis=dht_PeriodSevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_CreationDateAxis=dht_PeriodEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: