EARNINGS PER SHARE - EPS Calculation (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Numerator:
Net income (loss)	$ (105,959)us-gaap_ProfitLoss	$ (86,331)us-gaap_ProfitLoss	$ (86,331)us-gaap_ProfitLoss
Net income attributable to noncontrolling interests			15
Net income (loss) attributable to common stockholders	(105,959)		(86,316)
Denominator:
Weighted average basic common shares outstanding	39,465		39,454
Numerator:
Net income (loss) attributable to common stockholders	(105,959)		(86,316)
Adjusted net income (loss) attributable to common stockholders	$ (105,959)		$ (86,316)
Denominator:
Weighted average basic common shares outstanding	39,465		39,454
Weighted average diluted common shares outstanding	39,465		39,454
Basic earnings (loss) per share: (in dollars per share)	$ (2.68)us-gaap_EarningsPerShareBasic		$ (2.19)us-gaap_EarningsPerShareBasic
Diluted earnings (loss) per share: (in dollars per share)	$ (2.68)us-gaap_EarningsPerShareDiluted		$ (2.19)us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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