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Fair value measurements - Fair value on a recurring basis - Significant Other Observable Inputs (Table) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
ASSETS |  |
asset position | $ 77 | $ 41
Significant Other Observable Inputs (Level 2) | Designated as cash flow hedges |  |
ASSETS |  |
Total | 0 | 0
LIABILITIES |  |
Total | 16 | 437
Significant Other Observable Inputs (Level 2) | Designated as cash flow hedges | Forward freight agreements |  |
ASSETS |  |
asset position | 0 | 0
LIABILITIES |  |
liability position | 0 | 0
Significant Other Observable Inputs (Level 2) | Designated as cash flow hedges | Bunker swaps |  |
ASSETS |  |
asset position | 0 | 0
Significant Other Observable Inputs (Level 2) | Designated as cash flow hedges | Interest rate swaps |  |
LIABILITIES |  |
liability position | 16 | 437
Significant Other Observable Inputs (Level 2) | Not designated as cash flow hedges |  |
ASSETS |  |
Total | 77 | 41
LIABILITIES |  |
Total | 609 | 2,908
Significant Other Observable Inputs (Level 2) | Not designated as cash flow hedges | Forward freight agreements |  |
ASSETS |  |
asset position | 17 | 41
LIABILITIES |  |
liability position | 0 | 0
Significant Other Observable Inputs (Level 2) | Not designated as cash flow hedges | Bunker swaps |  |
ASSETS |  |
asset position | 60 | 0
Significant Other Observable Inputs (Level 2) | Not designated as cash flow hedges | Interest rate swaps |  |
LIABILITIES |  |
liability position | $ 609 | $ 2,908

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