Borrowings - Principal Payments (Table) (Details) $ in Thousands |
Jun. 30, 2015
USD ($)
|
|---|---|
| BORROWINGS [Abstract] | |
| June 30, 2016 | $ 8,880 |
| June 30, 2017 | 21,126 |
| June 30, 2018 | 24,561 |
| June 30, 2019 | 417,055 |
| June 30, 2020 | 53,923 |
| June 30, 2021 and thereafter | $ 1,088,014 |