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Fair Value Measurements and Hedging - Derivative instruments effect on statement of operations (Table) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Interest and finance costs |  |  |
Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other comprehensive income/(loss) (Note 7) | $ (2,351) | $ (848) | $ (0)
Total Gain/(loss) recognized | (2,351) | (848) | 0
Gain/(loss) on forward freight agreements and bunker swaps, net |  |  |
Total Gain/(loss) recognized | 3,564 | 16,156 | 4,411
Forward Freight Agreements [Member] |  |  |
Gain/(loss) on forward freight agreements and bunker swaps, net |  |  |
Realized gain/(loss) on forward freight agreements and freight options | 1,308 | (5,995) | 6,043
Unrealized gain/(loss) on forward freight agreements and freight options | 1,802 | (430) | (321)
Bunker Swaps [Member] |  |  |
Gain/(loss) on forward freight agreements and bunker swaps, net |  |  |
Realized gain/(loss) on bunker swaps | 748 | 20,856 | (1,386)
Unrealized gain/(loss) on bunker swaps | $ (294) | $ 1,725 | $ 75

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