Summary of Significant Accounting Policies - Depreciation Periods (Table) (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2015 | |
| Vessels | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | 25 years |
| Port terminals | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | 5 to 40 years |
| Tanker vessels, barges and push boats | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | 15 to 45 years |
| Furniture, fixtures and equipment | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | 3 to 10 years |
| Computer equipment and software | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | 5 years |
| Leasehold improvements | |
| Property Plant And Equipment [Line Items] | |
| Useful life assets | shorter of lease term or 6 years |