INCOME TAXES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) entity	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) entity	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Provision (benefit) for income taxes
Income tax benefit	$ 11,549	$ 9,789	$ 19,970	$ 17,039
Income tax due to the reversal of the net deferred tax liability			$ (5,900)
Number of entities with related income tax benefit | entity	1		1
Net deferred tax liabilities	$ 320,500		$ 320,500		$ 338,400