Financial risk management, objectives and policies, Market Risk (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($) Type	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Market risk [Abstract]
Number of types of risk in market prices \| Type	4
Increase (decrease) in profit (loss) due to change in interest rates by fifty basis points \| $	$ (2,076)	$ (2,185)	$ (457)

The amount of increase (decrease) in profit (loss) due to change in interest rates by fifty basis points.

No definition available.

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