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Charter arrangements, Summary of vessel employment (Details) | 12 Months Ended
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Dec. 31, 2020
DHT Amazon [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter with profit sharing
Expiry | Q3 2021
DHT Bauhinia [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Bronco [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT China [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter with profit sharing
Expiry | Q2 2021
DHT Colt [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q3 2022
DHT Condor [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Edelweiss [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Europe [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Falcon [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Hawk [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Jaguar [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Lake [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Leopard [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Lion [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Lotus [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Mustang [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q2 2021
DHT Opal [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q3 2021
DHT Panther [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Peony [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Puma [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Raven [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Redwood [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q1 2021
DHT Scandinavia [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot
DHT Stallion [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter
Expiry | Q2 2022
DHT Sundarbans [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter with profit sharing
Expiry | Q4 2021
DHT Taiga [Member] |
Vessel employment [Abstract] |
Type of Employment | Time charter with profit sharing
Expiry | Q4 2022
DHT Tiger [Member] |
Vessel employment [Abstract] |
Type of Employment | Spot

X
- Definition Expiry date of the employment. + References No definition available. + Details
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Namespace Prefix: | dht_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Type of employment company is providing. + References No definition available. + Details
Name: | dht_TypeOfEmployment
Namespace Prefix: | dht_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtAmazonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtBauhiniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTBroncoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtChinaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTColtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTCondorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTEdelweissMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTFalconMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTHawkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtJaguarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTLakeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTLeopardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTLionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTLotusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTMustangMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTOpalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTPantherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtPeonyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTPumaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTRavenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTRedwoodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTScandinaviaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTStallionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTSundarbansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DhtTaigaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dht_DHTTigerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |