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Finance Liabilities (Narrative) (Details) $ in Thousands | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2026 USD ($) | Jun. 30, 2025 USD ($) | Dec. 31, 2025 USD ($) | Dec. 06, 2022 | Aug. 17, 2022 Vessels | Mar. 29, 2022
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Finance liabilities, current | $ 10,264 |  | $ 10,041 |  |  |
Finance liabilities, excluding current maturities | $ 98,109 |  | $ 103,259 |  |  |
Weighted average remaining lease term | 5 years 2 months 19 days |  |  |  |  |
Average interest rate | 4.83% |  |  |  |  |
Sublease Income | $ 16,587 | $ 14,603 |  |  |  |
Florida 2022 Built Capesize Vessel [Member] |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Term for bareboat charter party |  |  |  |  |  | 10 years
New Orleans And Santa Barbara Vessels [Member] |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Term for bareboat charter party |  |  |  |  | 8 years |
Number of sale and leaseback agreements | Vessels |  |  |  |  | 2 |
DSI Andromeda [Member] |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Term for bareboat charter party |  |  |  | 10 years |  |

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