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REVENUES (Tables) | 3 Months Ended
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Mar. 31, 2018
REVENUES [Abstract] |
Revenues by Major Source | The following table sets forth the Company’s revenues by major source for the three months ended March 31, 2018 and 2017 (in thousands):
|  | Three months ended March 31, |
|  | 2018 |  |  | 2017 |
Marine transportation segment: |  |  |  |  |  |  |  |
Inland transportation |  | $ | 252,355 |  |  | $ | 237,238 |
Coastal transportation |  |  | 88,048 |  |  |  | 106,414 |
|  | $ | 340,403 |  |  | $ | 343,652 |
Distribution and services segment: |  |  |  |  |  |  |  |
Oil and gas |  | $ | 274,491 |  |  | $ | 97,104 |
Commercial and industrial |  |  | 126,794 |  |  |  | 50,949 |
|  | $ | 401,285 |  |  | $ | 148,053 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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