Intangible Assets/Liabilities Other Than Goodwill - Amortization Expense (Table) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Trade name | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | $ 3,853 | $ 3,902 | $ 3,811 |
| Port terminal operating rights | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | 727 | 706 | 1,006 |
| Customer relationships | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | 1,775 | 1,775 | 1,775 |
| Favorable lease terms | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | 4,038 | 17,260 | 32,444 |
| Unfavorable lease terms | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | 0 | (7,526) | (14,615) |
| Total | |||
| Acquired Finite Lived Intangible Assets [Line Items] | |||
| Amortization Expense and Write Offs | $ 10,393 | $ 16,117 | $ 24,420 |