Intangible Assets (Table) (Details) - USD ($) $ in Thousands |
Jun. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Finite-Lived Intangible Assets, Net [Abstract] | ||
| Acquisition cost | $ 71,535 | $ 71,535 |
| Accumulated amortization | (55,861) | (46,185) |
| Time charters with favorable terms net book value | $ 15,674 | $ 25,350 |