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v3.24.1

Vessels - Operating vessels and drydock rollforward (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) vessel tanker | Dec. 31, 2022 USD ($) vessel | Dec. 31, 2021 USD ($) | Nov. 30, 2023 USD ($)
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | $ 3,089,254 |  |  |
Reversal of previously recorded impairment | 0 | $ (12,708) | $ 0 |
Ending balance | 3,577,935 | $ 3,089,254 |  |
Number of vessels in agreement to sell | vessel |  | 18 |  |
Property, plant and equipment | $ 3,577,935 | $ 3,089,254 |  |
STI Ville and STI Amber | MR | Sale of Vessels |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of vessels in agreement to sell | vessel | 2 |  |  |
Cost |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | $ 4,162,703 | 4,918,357 |  |
Transfer from right of use assets, net | 698,884 |  |  |
Additions | 21,449 | 40,233 |  |
Disposal of vessels | (82,563) | (780,891) |  |
Write-offs | (2,271) | (14,996) |  |
Ending balance | 4,798,202 | 4,162,703 | 4,918,357 |
Property, plant and equipment | 4,798,202 | 4,162,703 | 4,918,357 |
Accumulated depreciation and impairment |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | (1,073,449) | (1,076,286) |  |
Charge for the period | (178,259) | (168,008) |  |
Disposal of vessels | 29,941 | 143,141 |  |
Reversal of previously recorded impairment |  | 12,708 |  |
Write-offs | 1,500 | 14,996 |  |
Ending balance | (1,220,267) | (1,073,449) | (1,076,286) |
Property, plant and equipment | (1,220,267) | (1,073,449) | (1,076,286) |
Vessels |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | 3,028,804 |  |  |
Ending balance | 3,524,321 | 3,028,804 |  |
Property, plant and equipment | 3,524,321 | 3,028,804 |  |
Vessels | Sale of Vessels |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | $ 637,800 |  |  |
Ending balance |  | 637,800 |  |
Number of vessels in agreement to sell | vessel | 19 |  |  |
Property, plant and equipment |  | $ 637,800 |  |
Vessels | LR2 |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of ships purchased, previously recorded as right of use assets | tanker | 4 |  |  |
Vessels | MR |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of ships purchased, previously recorded as right of use assets | tanker | 17 |  |  |
Vessels | STI Ville and STI Amber | MR | Sale of Vessels |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Property, plant and equipment |  |  |  | $ 52,600
Vessels | STI Savile Row, STI Carnaby and STI Nautilus | LR2 |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of vessels in agreement to sell | vessel |  | 3 |  |
Vessels | STI Fontvieille and STI Benicia | MR |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of vessels in agreement to sell | vessel |  | 2 |  |
Vessels | STI Excelsior, STI Executive, STI Excellence, STI Pride, STI Providence, STI Prestige, STI Experience, STI Express, STI Exceed, STI Excel, STI Expedite, and STI Precision | LR1 |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Number of vessels in agreement to sell | vessel |  | 12 |  |
Vessels | Cost |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | $ 4,045,062 | $ 4,782,886 |  |
Transfer from right of use assets, net | 695,162 |  |  |
Additions | 4,711 | 20,426 |  |
Disposal of vessels | (79,429) | (758,250) |  |
Write-offs | (771) | 0 |  |
Ending balance | 4,664,735 | 4,045,062 | 4,782,886 |
Property, plant and equipment | 4,664,735 | 4,045,062 | 4,782,886 |
Vessels | Accumulated depreciation and impairment |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | (1,016,258) | (1,020,407) |  |
Charge for the period | (152,661) | (145,140) |  |
Disposal of vessels | 28,505 | 136,581 |  |
Reversal of previously recorded impairment |  | 12,708 |  |
Write-offs | 0 | 0 |  |
Ending balance | (1,140,414) | (1,016,258) | (1,020,407) |
Property, plant and equipment | (1,140,414) | (1,016,258) | (1,020,407) |
Drydock |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | 60,450 |  |  |
Ending balance | 53,614 | 60,450 |  |
Property, plant and equipment | 53,614 | 60,450 |  |
Drydock | Cost |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | 117,641 | 135,471 |  |
Transfer from right of use assets, net | 3,722 |  |  |
Additions | 16,738 | 19,807 |  |
Disposal of vessels | (3,134) | (22,641) |  |
Write-offs | (1,500) | (14,996) |  |
Ending balance | 133,467 | 117,641 | 135,471 |
Property, plant and equipment | 133,467 | 117,641 | 135,471 |
Drydock | Accumulated depreciation and impairment |  |  |  |
Changes in Property, Plant and Equipment [Roll Forward] |  |  |  |
Beginning balance | (57,191) | (55,879) |  |
Charge for the period | (25,598) | (22,868) |  |
Disposal of vessels | 1,436 | 6,560 |  |
Reversal of previously recorded impairment |  | 0 |  |
Write-offs | 1,500 | 14,996 |  |
Ending balance | (79,853) | (57,191) | (55,879) |
Property, plant and equipment | $ (79,853) | $ (57,191) | $ (55,879) |

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