CONSOLIDATED BALANCE SHEETS (unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Real estate, at cost:
Land	$ 1,689,523	$ 1,520,413
Buildings and improvements	3,111,258	2,592,449
Total real estate, at cost	4,800,781	4,112,862
Less accumulated depreciation and amortization	(786,863)	(711,615)
Net real estate held for investment	4,013,918	3,401,247
Real estate held for sale, net	4,158	3,631
Net real estate	4,018,076	3,404,878
Cash and cash equivalents	5,543	17,607
Accounts receivable, net	12,065	11,301
Goodwill	17,206	17,206
Other assets, net	221,884	84,598
Total assets	4,274,774	3,535,590
LIABILITIES AND STOCKHOLDERS' EQUITY
Distributions payable	21,360	19,051
Accounts payable and accrued expenses	34,538	47,019
Other liabilities	28,584	22,555
Line of credit payable	96,600	0
Mortgages payable, net	68,150	0
Notes payable	1,750,000	1,600,000
Total liabilities	1,999,232	1,688,625
Commitments and contingencies
Stockholders' equity:
Preferred stock and paid in capital, par value $0.01 per share, 20,000,000 shares authorized, 13,900,000 shares issued and outstanding in 2011 and 2010	337,790	337,790
Common stock and paid in capital, par value $0.01 per share, 200,000,000 shares authorized, 133,202,323 and 118,058,988 shares issued and outstanding as of September 30, 2011 and December 31, 2010, respectively	2,560,612	2,066,287
Distributions in excess of net income	(622,860)	(557,112)
Total stockholders' equity	2,275,542	1,846,965
Total liabilities and stockholders' equity	$ 4,274,774	$ 3,535,590