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Finance Liabilities (Narrative) (Details) $ in Thousands | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 06, 2022 USD ($) | Aug. 17, 2022 USD ($) Vessels | Mar. 29, 2022 USD ($)
--- | --- | --- | --- | --- | ---
Lessee Lease Description [Line Items] |  |  |  |  |
Finance Lease Liability | $ 136,611 | $ 140,931 |  |  |
Weighted average remaining lease term | 8 years 2 months 12 days |  |  |  |
Average interest rate | 4.83% |  |  |  |
Florida 2022 Built Capesize Vessel [Member] |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Finance Lease Liability |  |  |  |  | $ 50,000
Term for bareboat charter party |  |  |  |  | 10 years
Lease obligation to purchase vessel |  |  |  |  | $ 16,350
New Orleans And Santa Barbara Vessels [Member] |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Finance Lease Liability |  |  |  | $ 66,400 |
Term for bareboat charter party |  |  |  | 8 years |
Number of sale and leaseback agreements | Vessels |  |  |  | 2 |
New Orleans Vessel [Member] |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Lease obligation to purchase vessel |  |  |  | $ 13,000 |
Santa Barbara Vessel [Member] |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Lease obligation to purchase vessel |  |  |  | $ 13,000 |
DSI Andromeda [Member] |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Finance Lease Liability |  |  | $ 29,850 |  |
Term for bareboat charter party |  |  | 10 years |  |
Lease obligation to purchase vessel |  |  | $ 8,050 |  |

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