Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
REVENUES
Property operating	$ 60,948	$ 53,320	$ 119,913	$ 105,141
Single-tenant net lease	12,833	13,459	25,092	27,503
Straight-line rent	1,542	1,076	3,449	2,364
Mortgage interest	2,039	1,825	4,331	3,474
Other operating	1,374	2,047	3,146	4,345
Revenues	78,736	71,727	155,931	142,827
EXPENSES
Property operating	29,457	27,773	58,039	55,210
General and administrative	4,519	5,157	9,782	10,938
Depreciation	21,311	18,487	42,333	36,756
Amortization	2,540	1,778	5,077	3,555
Bad debt, net	149	93	109	271
Total Expenses	57,976	53,288	115,340	106,730
OTHER INCOME (EXPENSE)
Loss on extinguishment of debt			0	(1,986)
Interest expense	(18,530)	(17,343)	(36,909)	(39,617)
Interest and other income, net	203	196	508	418
Total other income (expense)	(18,327)	(17,147)	(36,401)	(41,185)
INCOME (LOSS) FROM CONTINUING OPERATIONS	2,433	1,292	4,190	(5,088)
DISCONTINUED OPERATIONS
Income from discontinued operations	659	719	2,777	1,448
Impairments	(167)	0	(4,336)	(147)
Gain on sales of real estate properties	3	0	3,431	36
INCOME FROM DISCONTINUED OPERATIONS	495	719	1,872	1,337
NET INCOME (LOSS)	2,928	2,011	6,062	(3,751)
Less: Net income attributable to noncontrolling interests	(20)	0	(20)	(27)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ 2,908	$ 2,011	$ 6,042	$ (3,778)
BASIC EARNINGS (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations	$ 0.03	$ 0.02	$ 0.05	$ (0.07)
Discontinued operations	$ 0.01	$ 0.01	$ 0.03	$ 0.02
Net income (loss) attributable to common stockholders	$ 0.04	$ 0.03	$ 0.08	$ (0.05)
DILUTED EARNINGS (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations	$ 0.03	$ 0.02	$ 0.05	$ (0.07)
Discontinued operations	$ 0.01	$ 0.01	$ 0.03	$ 0.02
Net income (loss) attributable to common stockholders	$ 0.04	$ 0.03	$ 0.08	$ (0.05)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - BASIC	76,462,266	72,035,154	76,444,487	69,109,543
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - DILUTED	77,712,493	73,149,232	77,678,362	69,109,543
DIVIDENDS DECLARED, PER COMMON SHARE, DURING THE PERIOD	$ 0.30	$ 0.30	$ 0.60	$ 0.60