XML 64 R47.htm IDEA: XBRL DOCUMENT v3.10.0.1
GOODWILL (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Line Items]        
Goodwill $ 1,744,694 $ 1,741,540 $ 1,771,877 $ 1,720,714
Goodwill, Foreign Currency Translation Gain (Loss) $ (27,183) $ 20,826