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Vessels and subsidiaries, Pledged assets (Details) - Vessel	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pledged assets [Abstract]
Number of vessels	23	26	27

X

- 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

- References

No definition available.

+ Details

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