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INCOME TAXES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income before income taxes and non-controlling interests [Line Items]      
Domestic - Luxembourg $ 8,498 $ 27,884 $ 124,181
Total 44,321 53,060 147,265
U.S.      
Income before income taxes and non-controlling interests [Line Items]      
Foreign - U.S. and Non-U.S. 16,655 5,944 9,575
Non-U.S.      
Income before income taxes and non-controlling interests [Line Items]      
Foreign - U.S. and Non-U.S. $ 19,168 $ 19,232 $ 13,509