STOCK-BASED COMPENSATION (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2014
Common Stock Options, Quantity
Exercised (in shares)		(50,000)	(840,649)
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Stock-based compensation expense recognized	$ (171,000)	$ 1,834,000	$ 4,779,000
2013 Plan
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Compensation cost related to unvested granted awards not yet recognized	8,700,000
2009 Plan
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Stock-based compensation expense recognized	16,000	798,000	4,779,000
Restricted stock units
Restricted stock units and Equity-based incentive awards, Quantity
Outstanding at the beginning of the period (in shares)	534,463
Granted (in shares)	783,584
Exercised (in shares)	(51,447)
Forfeited (in shares)	(485,310)
Outstanding at the end of the period (in shares)	781,290
Nonvested Restricted stock units and Equity-based incentive awards, Quantity
Outstanding at the beginning of the period (in shares)	534,463
Granted (in shares)	783,584
Vested (in shares)	(51,447)
Forfeited (in shares)	(485,310)
Outstanding at the end of the period (in shares)	781,290
Nonvested Restricted Stock Units and Equity-based incentive awards, Weighted average grant-date fair value
Outstanding at the beginning of the period (in dollars per share)	$ 10.53
Granted (in dollars per share)	$ 8.36
Vested (in dollars per share)	$ 11.26
Forfeited (in dollars per share)	$ 10.10
Outstanding at the end of the period (in dollars per share)	$ 8.62
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Total intrinsic value of equity instruments other than options	457,000
Restricted stock units | 2013 Plan
Restricted stock units and Equity-based incentive awards, Quantity
Granted (in shares)	887,407	2,000,000
Nonvested Restricted stock units and Equity-based incentive awards, Quantity
Granted (in shares)	887,407	2,000,000
Nonvested Restricted Stock Units and Equity-based incentive awards, Weighted average grant-date fair value
Outstanding at the beginning of the period (in dollars per share)	$ 10.53			$ 8.36
Outstanding at the end of the period (in dollars per share)		$ 10.53		$ 8.36
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Stock-based compensation expense recognized	3,480,000	1,035,000
Compensation cost related to unvested granted awards not yet recognized	700,000	1,300,000
Stock Options
Common Stock Options, Quantity
Outstanding at the beginning of the period (in shares)	2,405,068
Granted (in shares)	15,000
Forfeited (in shares)	(47,500)
Expired (in shares)	(962,706)
Outstanding at the end of the period (in shares)	1,409,862	2,405,068
Common Stock Options, Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 19.20
Granted (in dollars per share)	$ 9.07
Forfeited (in dollars per share)	$ 9.07
Expired (in dollars per share)	$ 21.54
Outstanding at the end of the period (in dollars per share)	$ 17.84	$ 19.20
Nonvested Common Stock Options, Quantity
Nonvested Common Stock Options at the beginning of the period (in shares)	48,752
Granted (in shares)	15,000
Vested (in shares)	(16,252)
Forfeited (in shares)	(47,500)
Nonvested Common Stock Options at the end of the period (in shares)		48,752
Nonvested Common Stock Options, Weighted average grant-date fair value
Nonvested options at the beginning of the period (in dollars per share)	$ 2.43
Granted (in dollars per share)	$ 0.77
Vested (in dollars per share)	$ 2.43
Forfeited (in dollars per share)	$ 1.90
Nonvested options at the end of the period (in dollars per share)		$ 2.43
Vested Common stock options
Vested Common Stock Options, Quantity (in shares)	1,409,862
Vested Common Stock Options, Weighted Average Exercise Price (in dollars per share)	$ 17.84
Vested Common Stock Options, Weighted Average Remaining Contractual Term	4 years 8 months 12 days
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Total intrinsic value of options exercised		122,000	4,624,000
Equity-based incentive awards
Restricted stock units and Equity-based incentive awards, Quantity
Outstanding at the beginning of the period (in shares)	1,571,319
Expired (in shares)	(1,571,319)
Outstanding at the end of the period (in shares)		1,571,319
Equity-based incentive awards, Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 14.00
Expired (in dollars per share)	$ 14.00
Outstanding at the end of the period (in dollars per share)	$ 14.00	$ 14.00
Vested Restricted stock units and Equity-based incentive awards
Vested Equity-based incentive awards, Weighted Average Remaining Contractual Term	0 years
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Total intrinsic value of equity instruments other than options		242,000	35,000
Vesting based on performance criteria | Restricted stock units | 2013 Plan
Intrinsic value of common stock options, SAR and equity based incentive awards exercised during the period
Compensation cost related to unvested granted awards not yet recognized	$ 6,700,000
Weighted average period of recognition of unrecognized compensation cost related to nonvested awards	2 years 7 months 6 days