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Carrying values of vessels, vessels under construction and goodwill - Carrying value of vessels narrative (Details) | 12 Months Ended
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Dec. 31, 2025 USD ($) vessel | Dec. 31, 2024 USD ($) vessel | Dec. 31, 2023 USD ($)
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Number of vessels | vessel | 1 |  |
Goodwill | $ 8,197,000 | $ 8,197,000 |
Interest costs capitalised | 0 | 0 | $ 0
Interest eligible to be capitalized | $ 0 | $ 0 |
Vessels |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Number of vessels | vessel | 93 | 99 |
Impairment loss recognised in profit or loss, property, plant and equipment | $ 0 | $ 0 |
LR2 |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Goodwill | $ 8,200,000 | $ 8,200,000 |

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