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v3.20.1

LEASING - Nature of the Group's leasing activities by type of right-of-use asset recognized on the balance sheet (Details) | 12 Months Ended
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Dec. 31, 2019 Asset lease
Vessels and capitalized dry-docking |
Disclosure of quantitative information about right-of-use assets [line items] |
No. of right-of-use assets leased | Asset | 3
Range of remaining term | 2 years
Average remaining lease term | 2 years 3 months 18 days
No. of leases with options to purchase | 3
No. of leases with termination options | 3
Land and buildings |
Disclosure of quantitative information about right-of-use assets [line items] |
No. of right-of-use assets leased | Asset | 10
Average remaining lease term | 2 years 9 months 18 days
No. of leases with extension options | 10
No. of leases with termination options | 2
Other plant and operating equipment |
Disclosure of quantitative information about right-of-use assets [line items] |
No. of right-of-use assets leased | Asset | 19
Average remaining lease term | 1 year 3 months 18 days
No. of leases with extension options | 19
No. of leases with termination options | 10
Minimum | Land and buildings |
Disclosure of quantitative information about right-of-use assets [line items] |
Range of remaining term | 0 years
Minimum | Other plant and operating equipment |
Disclosure of quantitative information about right-of-use assets [line items] |
Range of remaining term | 0 years
Maximum | Land and buildings |
Disclosure of quantitative information about right-of-use assets [line items] |
Range of remaining term | 9 years
Maximum | Other plant and operating equipment |
Disclosure of quantitative information about right-of-use assets [line items] |
Range of remaining term | 3 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The average remaining term of the lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | trmd_AverageRemainingLeaseTerm
Namespace Prefix: | trmd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of leases with extension options entered in to by the company. + References No definition available. + Details
Name: | trmd_NumberOfLeasesWithExtensionOptions
Namespace Prefix: | trmd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of leases with options to purchase entered in to by the company. + References No definition available. + Details
Name: | trmd_NumberOfLeasesWithOptionsToPurchase
Namespace Prefix: | trmd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of leases with termination options entered in to by the company. + References No definition available. + Details
Name: | trmd_NumberOfLeasesWithTerminationOptions
Namespace Prefix: | trmd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of right-of-use assets leased by the company. + References No definition available. + Details
Name: | trmd_NumberOfRightOfUseAssetsLeased
Namespace Prefix: | trmd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The remaining term of the lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | trmd_RemainingLeaseTerm
Namespace Prefix: | trmd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_LandAndBuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_OtherPropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Period Type: |

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- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
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Balance Type: |
Period Type: |