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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Bunker swaps and Forward Purchase Agreements (Details) - Bunker Swap and Forward Fuel Purchase Agreements - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Summary of Significant Accounting Policies |  |  |
Derivative Asset, Current | $ 161 |  | $ 1
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] | Prepaid Expense and Other Assets, Current |  | Prepaid Expense and Other Assets, Current
Fair value of liability position | $ 1 |  | $ 0
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accounts Payable and Accrued Liabilities, Current |  | Accounts Payable and Accrued Liabilities, Current
Other income (expense) |  |  |
Summary of Significant Accounting Policies |  |  |
Realized (losses) gains | $ 18 | $ 108 |
Unrealized (losses) gains | $ 160 | $ (42) |

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