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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURMENTS (Schedule of Recurring Fair Value Measurements) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Marketable securities held for sale | $ 135,227 | $ 113,168
Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cross currency swap- asset, net position | 4,951 | 16,455
Marketable securities held for sale | 135,227 | 113,168
Foreign exchange forward and cylinders - liability position | (395) | (169)
Foreign exchange forward and cylinders - asset position |  | 24
Total assets and liabilities | 139,783 | 129,478
Recurring [Member] | Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cross currency swap- asset, net position |  |
Marketable securities held for sale | 135,227 | 113,168
Foreign exchange forward and cylinders - liability position |  |
Foreign exchange forward and cylinders - asset position |  |
Total assets and liabilities | 135,227 | 113,168
Recurring [Member] | Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cross currency swap- asset, net position | 4,951 | 16,455
Marketable securities held for sale |  |
Foreign exchange forward and cylinders - liability position | (395) | (169)
Foreign exchange forward and cylinders - asset position |  | 24
Total assets and liabilities | 4,556 | 16,310
Recurring [Member] | Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cross currency swap- asset, net position |  |
Marketable securities held for sale |  |
Foreign exchange forward and cylinders - liability position |  |
Foreign exchange forward and cylinders - asset position |  |
Total assets and liabilities |  |

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