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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5)-K (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net loss	$ 31,929us-gaap_ProfitLoss	$ 45,615us-gaap_ProfitLoss	$ (14,733)us-gaap_ProfitLoss	$ (86,331)us-gaap_ProfitLoss	$ 18,538us-gaap_ProfitLoss	$ 7,433us-gaap_ProfitLoss	$ (76,496)us-gaap_ProfitLoss	$ (23,170)us-gaap_ProfitLoss	$ (23,520)us-gaap_ProfitLoss	$ (73,695)us-gaap_ProfitLoss	$ (127,543)us-gaap_ProfitLoss
Net income attributable to noncontrolling interests									(11)	(95)	(745)
Net loss attributable to common stockholders	31,930	45,615	(14,760)	(86,316)	18,533	7,335	(76,554)	(23,124)	(23,531)	(73,790)	(128,288)
Denominator:
Weighted average basic common shares outstanding	39,464,000	39,465,000	39,458,000	39,454,000	39,454,000	39,454,000	39,445,000	39,441,000	39,464,000	39,449,000	38,127,000
Numerator:
Net loss attributable to common stockholders									(23,531)	(73,790)	(128,288)
Adjusted net income (loss) attributable to common stockholders									$ (23,531)	$ (73,790)	$ (128,288)
Denominator:
Weighted average basic common shares outstanding	39,464,000	39,465,000	39,458,000	39,454,000	39,454,000	39,454,000	39,445,000	39,441,000	39,464,000	39,449,000	38,127,000
Weighted average diluted common shares outstanding	43,027,000	43,171,000	39,458,000	39,454,000	42,529,000	42,439,000	39,445,000	39,441,000	39,464,000	39,449,000	38,127,000
Basic loss per share: (in dollars per share)	$ 0.81us-gaap_EarningsPerShareBasic	$ 1.16us-gaap_EarningsPerShareBasic	$ (0.37)us-gaap_EarningsPerShareBasic	$ (2.19)us-gaap_EarningsPerShareBasic	$ 0.47us-gaap_EarningsPerShareBasic	$ 0.19us-gaap_EarningsPerShareBasic	$ (1.94)us-gaap_EarningsPerShareBasic	$ (0.59)us-gaap_EarningsPerShareBasic	$ (0.60)us-gaap_EarningsPerShareBasic	$ (1.87)us-gaap_EarningsPerShareBasic	$ (3.36)us-gaap_EarningsPerShareBasic
Diluted loss per share: (in dollars per share)	$ (1.18)us-gaap_EarningsPerShareDiluted	$ 0.48us-gaap_EarningsPerShareDiluted	$ (0.37)us-gaap_EarningsPerShareDiluted	$ (2.19)us-gaap_EarningsPerShareDiluted	$ 0.44us-gaap_EarningsPerShareDiluted	$ 0.17us-gaap_EarningsPerShareDiluted	$ (1.94)us-gaap_EarningsPerShareDiluted	$ (0.59)us-gaap_EarningsPerShareDiluted	$ (0.60)us-gaap_EarningsPerShareDiluted	$ (1.87)us-gaap_EarningsPerShareDiluted	$ (3.36)us-gaap_EarningsPerShareDiluted
Stock Options
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)									1,046,940	965,440	861,940
Restricted Stock [Member]
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)									172,690	122,334	57,933
Sponsors Warrants [Member]
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)									1,916,667	1,916,667	1,916,667
Management Warrants [Member]
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)									2,862,687	2,862,687	2,862,687