Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
REVENUES
Master lease rent	$ 54,930	$ 52,262	$ 50,719
Property operating	222,039	189,778	176,375
Straight-line rent	4,771	2,627	2,135
Mortgage interest	6,973	2,377	2,646
Other operating	7,936	8,630	10,926
Total Revenue	296,649	255,674	242,801
EXPENSES
General and administrative	20,991	16,891	22,467
Property operating	115,415	100,314	92,100
Impairment	6,697	1,259	22
Bad debt, net	(249)	(431)	535
Depreciation	78,088	66,393	59,794
Amortization	8,257	5,373	5,290
Total Expenses	222,502	189,799	180,186
OTHER INCOME (EXPENSE)
Loss on extinguishment of debt	(1,986)	(480)
Re-measurement gain of equity interest upon acquisition			2,701
Interest expense	(76,038)	(65,710)	(43,080)
Interest and other income, net	820	2,403	1,028
Total other income (expense)	(77,204)	(63,787)	(39,351)
INCOME (LOSS) FROM CONTINUING OPERATIONS	(3,057)	2,088	23,264
DISCONTINUED OPERATIONS
Income from discontinued operations	2,535	4,059	7,770
Impairments	(6,697)	(6,252)	(22)
Gain on sales of real estate properties	7,035	8,352	20,136
INCOME FROM DISCONTINUED OPERATONS	2,873	6,159	27,884
NET INCOME (LOSS)	(184)	8,247	51,148
Less: Net income attributable to noncontrolling interests	(30)	(47)	(57)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ (214)	$ 8,200	$ 51,091
BASIC EARNINGS (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations	$ (0.04)	$ 0.03	$ 0.40
Discontinued operations	$ 0.04	$ 0.10	$ 0.48
Net income (loss) attributable to common stockholders	$ 0.00	$ 0.13	$ 0.88
DILUTED EARNINGS (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations	$ (0.04)	$ 0.03	$ 0.39
Discontinued operations	$ 0.04	$ 0.10	$ 0.48
Net income (loss) attributable to common stockholders	$ 0.00	$ 0.13	$ 0.87
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - BASIC	72,720,147	61,722,786	58,199,592
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - DILUTED	72,720,147	62,770,826	59,047,314