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DISPOSITIONS (Tables) | 12 Months Ended
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Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract] |
Details of Impairment of Long-Lived Assets Held For Sale by Asset [Table Text Block] | The impairment loss consisted of the following (in thousands of dollars):
Property, plant and equipment, net | $ | 68,213 |
Intangible assets, net (customer relationships) | 6,856 |
Goodwill | 27,460 |
Asset impairment loss | $ | 102,529 |
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] | The following table summarizes the results from discontinued operations:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
| (Thousands of Dollars)
Revenues | $ | 208 |  |  | $ | 4,265 |  |  | $ | 7,758 |
Income (loss) before income tax expense | $ | 774 |  |  | $ | (3,791 | ) |  | $ | (106,033 | )

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