Prepaid Expenses and Other Current Assets (Table) (Details) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| PREPAID EXPENSES AND OTHER CURRENT ASSETS [Abstract] | ||
| Prepaid voyage and operating costs | $ 8,700 | $ 8,996 |
| Claims receivables | 11,078 | 5,186 |
| Prepaid other taxes | 3,664 | 5,090 |
| Other | 700 | 2,441 |
| Total prepaid expenses and other current assets | $ 24,142 | $ 21,713 |