INCOME TAXES - Schedule of the (Provision for) Benefit From Income Taxes and the Effective Tax Rates (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 for) benefit from income taxes
Income before income taxes	$ 15,920	$ 25,257	$ 40,165	$ 30,089
Provision for income taxes	$ (9,693)	$ (6,021)	$ (17,392)	$ (8,687)
Effective Income Tax Rate Reconciliation, Percent	60.89%	23.83%	43.30%	28.87%
U.S. statutory federal income tax rate	35.00%	35.00%	35.00%	35.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 87,400		$ 87,400		$ 88,100