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v3.21.1

Vessels and subsidiaries, Time charter contracts (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) Vessel | Dec. 31, 2019 USD ($) Vessel | Dec. 31, 2018 Vessel
Intangible assets [Abstract] |  |  |
Carrying amount | $ | $ 452 | $ 1,430 |
Amortization period of intangible asset | 6 months |  |
Pledged assets [Abstract] |  |  |
Number of vessels | 27 | 27 | 27
Number of vessels pledged as collateral under the Company's secured credit facilities | 22 |  |
Number of unencumbered vessels | 5 |  |
DHT China Charter [Member] |  |  |
Intangible assets [Abstract] |  |  |
Carrying amount | $ | $ 452 | $ 1,430 |

X
- Definition This element represents number of unencumbered vessels. + References No definition available. + Details
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Namespace Prefix: | dht_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents number of vessels. + References No definition available. + Details
Name: | dht_NumberOfVessels
Namespace Prefix: | dht_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents number of vessels pledged as collateral under the Company's secured credit facilities. + References No definition available. + Details
Name: | dht_NumberOfVesselsPledgedAsCollateralUnderTheCompanySSecuredCreditFacilities
Namespace Prefix: | dht_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | dht_PledgedAssetsAbstract
Namespace Prefix: | dht_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_c&doctype=Standard -URIDate 2020-01-01 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_a&doctype=Standard -URIDate 2020-01-01 + Details
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Namespace Prefix: | ifrs-full_
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |