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INCOME TAXES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income before income taxes and non-controlling interests [Line Items]      
Domestic - Luxembourg $ 8,919 $ (22,513) $ 9,123
Total 12,439 1,399 35,375
Foreign - U.S.      
Income before income taxes and non-controlling interests [Line Items]      
Foreign - U.S. and Non-U.S. (12,602) 8,398 7,967
Foreign - non-U.S.      
Income before income taxes and non-controlling interests [Line Items]      
Foreign - U.S. and Non-U.S. $ 16,122 $ 15,514 $ 18,285