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Charter arrangements, Future charter payments (Details) $ in Thousands | Dec. 31, 2020 USD ($)
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Charter arrangements [Abstract] |
2021 | $ 99,264
2022 | 23,049
2023 | 0
2024 | 0
Thereafter | 0
Net charter payments | $ 122,313

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

X
- Definition Amount of future charter payments due in the next fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsDueCurrent
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of future charter payments due in the fourth fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsDueInFourYears
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of future charter payments due in the third fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsDueInThreeYears
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of future charter payments due in the second fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsDueInTwoYears
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of future charter payments due after the fifth fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsDueThereafter
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total amount of future charter payments. + References No definition available. + Details
Name: | dht_FutureCharterPaymentsTotal
Namespace Prefix: | dht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant