INCOME TAXES - PROVISION (BENEFIT) AND RECONCILIATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ (1,679)	$ (2,853)	$ 60,874
State	160	11	3,593
Foreign			3
Total current	(1,519)	(2,842)	64,470
Deferred:
Federal	(39,459)	80,293	(97,690)
State	(6,521)	3,895	(5,513)
Total deferred	(45,980)	84,188	(103,203)
Total (benefit) provision for income taxes	47,499	(81,346)	38,733
Reconciliation of income taxes at the statutory federal income tax rate to the actual tax rate
Tax at federal statutory rate	(43,133)	74,588	1,603
State tax, net of federal benefit	(2,615)	3,903	(3,177)
Foreign tax			3
Research credit	(438)		(258)
Net operating losses not benefited (benefited)			(17,510)
Stock Based Compensation	848	366	923
Non deductible meals and entertainment	729	440	442
Non-deductible other expense	846	2,049	(133)
Change in valuation allowance	(3,736)		(20,626)
Total provision for income taxes	$ (47,499)	$ 81,346	$ (38,733)
Effective tax rate			(846.00%)