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v3.26.1

Vessels and drydock - Operating vessels and drydock rollforward (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 USD ($) vessel | Dec. 31, 2024 USD ($) vessel
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | $ 3,190,820 |
Ending balance | 2,741,440 | $ 3,190,820
Cost |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | 4,423,317 | 4,798,202
Additions | 65,057 | 105,477
Disposal of vessels | (457,030) | (435,765)
Write-offs | (37,500) | (44,597)
Ending balance | 3,993,844 | 4,423,317
Accumulated depreciation and impairment |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | (1,232,497) | (1,220,267)
Charge for the period | (180,335) | (185,319)
Disposal of vessels | 122,928 | 128,492
Write-offs | 37,500 | 44,597
Ending balance | (1,252,404) | (1,232,497)
Vessels |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | 3,076,506 |
Ending balance | $ 2,613,257 | $ 3,076,506
Vessels | Sale of Vessels |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Number of vessels in agreement to sell | vessel | 22 |
Vessels | Eleven MR Vessels | MR | Sale of Vessels |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Number of vessels in agreement to sell | vessel |  | 11
Vessels | STI Maestro, STI Battery, STI Venere, STI Milwaukee and STI Yorkville | MR | Sale of Vessels |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Number of vessels in agreement to sell | vessel | 5 |
Vessels | STI Lobelia, STI Lavender, STI Goal, STI Gallantry, And STI Kingsway | LR2 | Sale of Vessels |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Number of vessels in agreement to sell | vessel | 5 |
Vessels | Cost |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | $ 4,250,399 | $ 4,664,735
Additions | 6 | 148
Disposal of vessels | (436,731) | (414,484)
Write-offs | 0 | 0
Ending balance | 3,813,674 | 4,250,399
Vessels | Accumulated depreciation and impairment |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | (1,173,893) | (1,140,414)
Charge for the period | (143,097) | (155,882)
Disposal of vessels | 116,573 | 122,403
Write-offs | 0 | 0
Ending balance | (1,200,417) | (1,173,893)
Drydock |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | 114,314 |
Ending balance | 128,183 | 114,314
Drydock | Cost |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | 172,918 | 133,467
Additions | 65,051 | 105,329
Disposal of vessels | (20,299) | (21,281)
Write-offs | (37,500) | (44,597)
Ending balance | 180,170 | 172,918
Drydock | Accumulated depreciation and impairment |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |
Beginning balance | (58,604) | (79,853)
Charge for the period | (37,238) | (29,437)
Disposal of vessels | 6,355 | 6,089
Write-offs | 37,500 | 44,597
Ending balance | $ (51,987) | $ (58,604)

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