CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Real estate properties:
Land	$ 615,623	$ 564,628
Buildings, improvements and equipment	4,567,684	4,156,963
Total real estate properties, gross	5,183,307	4,721,591
Less accumulated depreciation	750,903	630,261
Total real estate properties, net	4,432,404	4,091,330
Cash and cash equivalents	42,382	23,560
Restricted cash	9,432	7,128
Investments in available for sale securities	25,177	16,865
Deferred financing fees, net	29,410	25,434
Due from affiliate	18,331	18,450
Acquired real estate leases and other intangible assets, net	115,837	100,235
Loan receivable		38,000
Other assets	75,029	62,046
Total assets	4,748,002	4,383,048
LIABILITIES AND SHAREHOLDERS' EQUITY
Unsecured revolving credit facility	190,000
Senior unsecured notes, net of discount	1,092,053	965,770
Secured debt and capital leases	724,477	861,615
Accrued interest	15,757	22,281
Due to affiliate	11,527	3,553
Assumed real estate lease obligations, net	13,692	17,778
Other liabilities	53,928	39,445
Total liabilities	2,101,434	1,910,442
Commitments and contingencies
Shareholders' equity:
Common shares of beneficial interest, $.01 par value: 199,700,000 shares authorized, 176,553,600 and 162,646,046 shares issued and outstanding at December 31, 2012 and 2011, respectively	1,765	1,626
Additional paid in capital	3,233,354	2,944,212
Cumulative net income	1,043,821	907,937
Cumulative other comprehensive income	4,562	(3,772)
Cumulative distributions	(1,636,934)	(1,377,397)
Total shareholders' equity	2,646,568	2,472,606
Total liabilities and shareholders' equity	$ 4,748,002	$ 4,383,048