XML 81 R66.htm IDEA: XBRL DOCUMENT
v3.21.1

General & Administrative Expenses, Stock compensation series (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 shares $ / shares
October 2005 [Member] | Stock Options [Member] |
Stock Compensation Series [Abstract] |
Number of stock options (in shares) | shares | 965
Vesting period | 10 years
Fair value at grant date of stock options (in dollars per share) | $ / shares | $ 144.00
March 2012 [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 14,515
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 13.80
June 2013 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 155,000
Vesting period | 4 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.15
June 2013 Two [Member] | Stock Options [Member] |
Stock Compensation Series [Abstract] |
Number of stock options (in shares) | shares | 155,000
Vesting period | 5 years
Fair value at grant date of stock options (in dollars per share) | $ / shares | $ 1.31
June 2013 Three [Member] | Stock Options [Member] |
Stock Compensation Series [Abstract] |
Number of stock options (in shares) | shares | 155,000
Vesting period | 5 years
Fair value at grant date of stock options (in dollars per share) | $ / shares | $ 0.97
February 2014 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 29,333
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 6.92
February 2014 Two [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 29,333
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 6.33
February 2014 Three [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 29,333
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 5.63
February 2014 Four [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 88,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 7.61
June 2014 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 95,666
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 6.41
June 2014 Two [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 95,666
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 5.74
June 2014 Three [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 95,666
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 5.13
June 2014 Four [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 287,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 7.15
January 2015 [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 850,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 8.81
January 2016 [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 824,000
Vesting period | 2 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 6.65
January 2017 [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 900,000
Vesting period | 2 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.61
January 2018 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 355,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.92
January 2018 Two [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 212,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 2.30
January 2019 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 360,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.25
January 2019 Two [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 200,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.04
March 2019 [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 210,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.60
January 2020 One [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 460,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 8.22
January 2020 Two [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 150,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 8.22
January 2020 Three [Member] | Restricted Shares [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 200,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.5637

X
- Definition The fair value at grant date of other equity instruments granted in share-based payment arrangement. + References No definition available. + Details
Name: | dht_FairValueAtGrantDateOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangement
Namespace Prefix: | dht_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value at grant date of non-vested options outstanding. + References No definition available. + Details
Name: | dht_FairValueAtGrantDateOfShareOptionsGrantedInShareBasedPaymentArrangement
Namespace Prefix: | dht_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References No definition available. + Details
Name: | dht_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriod
Namespace Prefix: | dht_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of share options granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_October2005Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=dht_StockOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_March2012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=dht_RestrictedSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2013OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2013TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2013ThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_February2014OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_February2014TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_February2014ThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_February2014FourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2014OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2014TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2014ThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_June2014FourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2017Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2018OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2018TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2019OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2019TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_March2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2020OneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2020TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CreationDateAxis=dht_January2020ThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |