Accrued Expenses and Other Liabilitites (Table) (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| ACCRUED EXPENSES AND OTHER LIABILITIES [Abstract] | ||
| Payroll | $ 18,889 | $ 14,730 |
| Accrued interest | 32,555 | 36,273 |
| Accrued voyage expenses | 4,843 | 2,217 |
| Accrued running costs | 23,812 | 21,394 |
| Provision for estimated losses on vessels under time charter | 2,631 | 3,129 |
| Audit fees and related services | 364 | 266 |
| Accrued taxes | 5,376 | 5,092 |
| Professional fees | 2,236 | 1,707 |
| Other accrued expenses | 4,153 | 6,941 |
| Total accrued expenses | $ 94,859 | $ 91,749 |