INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Provision (benefit) for income taxes
Income tax benefit (expense)	$ 9,789	$ (3,274)	$ 17,039	$ (6,707)
Net deferred tax liabilities	$ 370,200		$ 370,200		$ 344,300