INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Income Tax Expense (Benefit)	$ 1,552	$ 3,883	$ (783)	$ 8,470
Income (loss) from continuing operations	(90,702)	$ (1,520)	(95,832)	$ (17,802)
Accounting Standards Update 2014-09
Operating Loss Carryforwards [Line Items]
Income Tax Expense (Benefit)	6,400		6,400
International
Operating Loss Carryforwards [Line Items]
Proposed income tax assessment penalties					$ 134,500
Decrease in unrecognized benefits	$ 40,600		$ 40,600