Interest Expense and Finance Cost (Table) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| INTEREST EXPENSE AND FINANCE COST [Abstract] | |||
| Interest expense | $ 115,099 | $ 107,787 | $ 108,488 |
| Amortization and write-off of deferred financing costs | 6,391 | 5,653 | 4,524 |
| Other | 121 | 199 | 139 |
| Interest expense and finance cost | $ 121,611 | $ 113,639 | $ 113,151 |