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INTANGIBLE ASSETS AND GOODWILL (Schedule of Goodwill Activity) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill at January 1, 2018
Business combinations 34,445
Foreign currency translation 429
Goodwill at December 31, 2018 $ 34,874