CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Real estate properties:
Land	$ 520,175	$ 446,622
Buildings and improvements	3,774,646	3,315,090
Total real estate properties, at cost, gross	4,294,821	3,761,712
Less accumulated depreciation	603,309	538,872
Total real estate properties, at cost, net	3,691,512	3,222,840
Cash and cash equivalents	26,845	10,866
Restricted cash	7,169	4,994
Deferred financing fees, net	22,844	16,262
Acquired real estate leases, net	98,840	63,593
Loan receivable	48,000
Other assets	108,103	74,101
Total assets	4,003,313	3,392,656
LIABILITIES AND SHAREHOLDERS' EQUITY
Unsecured revolving credit facility	210,000	128,000
Senior unsecured notes, net of discount	670,849	422,880
Secured debt and capital leases	723,928	654,010
Accrued interest	15,933	14,993
Assumed real estate lease obligations, net	18,853	18,239
Other liabilities	54,226	26,557
Total liabilities	1,693,789	1,264,679
Commitments and contingencies
Shareholders' equity:
Common shares of beneficial interest, $.01 par value: 174,700,000 shares authorized, 153,446,046 and 141,854,657 shares issued and outstanding at September 30, 2011 and December 31, 2010, respectively	1,534	1,418
Additional paid in capital	2,759,570	2,510,373
Cumulative net income	869,337	756,518
Cumulative other comprehensive income	(5,325)	13,536
Cumulative distributions	(1,315,592)	(1,153,868)
Total shareholders' equity	2,309,524	2,127,977
Total liabilities and shareholders' equity	$ 4,003,313	$ 3,392,656