Summary of Significant Accounting Policies - Depreciation Periods (Table) (Details)
|
12 Months Ended |
Dec. 31, 2016 |
|---|
| Vessels |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
25 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
|
| Minimum | Port terminals |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
5 years
|
| Minimum | Tanker vessels, barges and push boats |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
15 years
|
| Minimum | Furniture, fixtures and equipment |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
3 years
|
| Maximum | Port terminals |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
40 years
|
| Maximum | Tanker vessels, barges and push boats |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
45 years
|
| Maximum | Furniture, fixtures and equipment |
|
| Property Plant And Equipment [Line Items] |
|
| Useful life assets |
10 years
|