INCOME TAXES (Details 2) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Current income tax provision	$ 21,080	$ 15,532	$ 9,586
Deferred:
Deferred income tax provision	(297,336)	(2,597)	(1,326)
Total	(276,256)	12,935	8,260
Operating loss carryforwards	1,339,600	17,300
Deferred tax assets, other	349,154	5,891
Income tax expense, adjustment of deferred tax asset	6,300
Income tax expense, foreign income tax reserves	10,500
Decrease in foreign taxes due to tax holidays	$ 900	$ 900	$ 800
Effect on diluted per share due to decrease in foreign tax holiday (in dollars per share)	$ 0.05	$ 0.04	$ 0.04
Luxembourg
Current:
Current income tax provision	$ 737	$ 160	$ 1,787
Deferred:
Deferred income tax provision	(295,318)	432	0
U.S. Federal
Current:
Foreign	2,405	9,556	539
Deferred:
Foreign	(111)	(3,065)	(108)
U.S. State
Current:
Foreign	364	258	855
Deferred:
Foreign	(210)	(100)	(526)
Non-U.S.
Current:
Foreign	17,574	5,558	6,405
Deferred:
Foreign	(1,697)	$ 136	$ (692)
2017 Subsidiary Merger
Deferred:
Operating loss carryforwards	1,300,000
Deferred tax assets, other	$ 342,600
Operating loss carryforwards, term	17 years