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GOODWILL (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Mar. 31, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]            
Goodwill, discount rate 14.50%   14.50%   16.50%  
Goodwill [Line Items]            
Foreign currency translation adjustment     $ (1,301)      
Goodwill $ 131,132   131,132     $ 156,059
Goodwill, Impairment Loss (23,626) $ 0 $ (23,626) $ 0    
Goodwill Impairment $ 23,600