CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED NET (LOSS) INCOME	$ (54,116)	$ 12,903	$ (26,625)
NET CHANGE IN UNREALIZED GAIN ON DERIVATIVE AND HEDGING ACTIVITIES	0	158	662
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES	97	(199)	0
COMPREHENSIVE (LOSS) INCOME	(54,019)	12,862	(25,963)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	12,749	10,014	2,008
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ (66,768)	$ 2,848	$ (27,971)