EARNINGS PER SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income (loss)	$ 7,433	$ (50,192)	$ (92,233)	$ (126,724)
Net (income) loss attributable to noncontrolling interests	(98)	781	(110)	(637)
Net income (loss) attributable to common stockholders	7,335	(49,411)	(92,343)	(127,361)
Denominator:
Weighted average basic common shares outstanding	39,454	37,916	39,447	37,909
Numerator:
Net income (loss) attributable to common stockholders	7,335	(49,411)	(92,343)	(127,361)
Adjusted net income (loss) attributable to common stockholders	$ 7,335	$ (49,411)	$ (92,343)	$ (127,361)
Denominator:
Weighted average basic common shares outstanding	39,454	37,916	39,447	37,909
Restricted stock and stock options (in shares)	253
Warrants (in shares)	2,732
Weighted average diluted common shares outstanding	42,439	37,916	39,447	37,909
Basic earnings (loss) per share: (in dollars per share)	$ 0.19	$ (1.30)	$ (2.34)	$ (3.36)
Diluted earnings (loss) per share: (in dollars per share)	$ 0.17	$ (1.30)	$ (2.34)	$ (3.36)