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Equity Method Investments (Ecogas Holdings) (Narrative) (Details) $ in Thousands | 6 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 USD ($) Vessels | Jun. 30, 2025 USD ($) | Dec. 31, 2025 USD ($) | Feb. 08, 2024 Vessels
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Equity method investments | $ 58,382 |  | $ 53,875 |
Gain/(loss) from equity method investments | (418) | $ (747) |  |
Number of vessels under construction | Vessels |  |  |  | 2
Ecogas Holdings AS [Member] | Diana Gas, Inc [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Commitment amount | 18,464 |  |  |
Equity method investments | $ 11,719 |  | 8,754 |
Equity method investment, ownership percentage | 80.00% |  |  |
Gain/(loss) from equity method investments | $ (218) |  |  |
Equity method investment, voting rights | 50.00% |  |  |
Number of vessels under construction | Vessels | 2 |  |  |
Capital contributions to equity method investments | $ 13,384 |  | $ 10,248 |

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