SEGMENT REPORTING (Revenue from External Customers by Products and Services) (Details) - Sales Revenue, Net [Member] - Product Concentration Risk [Member] |
12 Months Ended | ||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Revenue from External Customer [Line Items] | Ìý | Ìý | Ìý |
Concentration Risk, Percentage | 100.00% | 100.00% | 100.00% |
Iron Ore Revenue [Member] | Ìý | Ìý | Ìý |
Revenue from External Customer [Line Items] | Ìý | Ìý | Ìý |
Concentration Risk, Percentage | 93.00% | 88.00% | 89.00% |
Freight and Venture Partners' Cost Reimbursements [Member] | Ìý | Ìý | Ìý |
Revenue from External Customer [Line Items] | Ìý | Ìý | Ìý |
Concentration Risk, Percentage | 7.00% | 12.00% | 11.00% |
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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