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Fair Value Measurements and Hedging - Fair value on a recurring basis - Significant Other Observable Inputs (Table) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
ASSETS |  |
Derivatives, current asset portion | $ (0) | $ 216
LIABILITIES |  |
Derivatives, current liability portion | 1,939 | 1,724
Derivatives, non-current liability portion | 2,265 | (0)
Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] |  |
ASSETS |  |
Total |  | 216
LIABILITIES |  |
Total | 212 | 1,724
Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | Forward Freight Agreements [Member] |  |
ASSETS |  |
Derivatives, current asset portion |  | 216
LIABILITIES |  |
Derivatives, current liability portion | 212 |
Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | Bunker Swaps [Member] |  |
LIABILITIES |  |
Derivatives, current liability portion |  | $ 1,724
Fair Value, Inputs, Level 1 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |
LIABILITIES |  |
Derivatives, current liability portion | 1,727 |
Total | 3,992 |
Derivatives, non-current liability portion | $ 2,265 |

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