INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ (29,013)	$ (23,909)
Total unrecognized tax benefits including interest and penalties	38,400		$ 39,700
Unrecognized tax benefit, if subsequently recognized would reduce income tax expense	35,900		$ 37,200
Decrease in unrecognized tax benefit, reasonably possible within twelve months	2,000
Decrease in unrecognized tax benefit which would reduce the income tax provision	$ 147,500