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CAPITAL IMPROVEMENTS IN PROGRESS AND NEWBUILDINGS - Narrative (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) rig contract | Dec. 31, 2022 USD ($) | Dec. 31, 2024 rig | Dec. 31, 2024 vessel | Dec. 31, 2024 contract | Dec. 31, 2024 carrier
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Capital improvements in progress | $ 15,758 | $ 2,194 |  |  |  |  |
Interest costs capitalized | $ (2,900) | $ (5,500) | $ (2,200) |  |  |  |
Number of container vessels under construction | vessel |  |  |  |  | 5 |  |
K Line |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Term of lease or charter | 10 years |  |  |  |  |  |
Leading Liner Company |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Term of lease or charter | 10 years |  |  |  |  |  |
Newbuilding Vessels |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of newbuilding contracts | contract |  | 2 |  |  |  | 5 |
Newbuilding Dual-Fuel Car Carriers |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of newbuilding car carriers | carrier |  |  |  |  |  |  | 2
Construction in progress |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels committed to vessel upgrades |  | 2 |  | 2 | 4 |  |

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