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FAIR VALUE MEASUREMENT (Narrative) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Fair Value Disclosures [Abstract] |  |
Notional amount of open forward contracts | $ 12,399 | $ 3,638

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- References No definition available. + Details
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