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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, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Summary of Significant Accounting Policies |  |  |
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] | Prepaid Expense and Other Assets, Current |  | Prepaid Expense and Other Assets, Current
Fair value of derivatives - liability position | $ 0 |  | $ 6
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accounts Payable and Accrued Liabilities, Current |  | Accounts Payable and Accrued Liabilities, Current
Other Nonoperating Income (Expense) |  |  |
Summary of Significant Accounting Policies |  |  |
Realized (losses) gains | $ 8 | $ 18 |
Unrealized (losses) gains | $ 6 | $ 160 |

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