CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Real estate properties, at cost:
Land	$ 1,485,077	$ 1,470,513
Buildings, improvements and equipment	6,073,936	5,946,852
Total real estate properties, gross	7,559,013	7,417,365
Accumulated depreciation	(1,865,135)	(1,757,151)
Total real estate properties, net	5,693,878	5,660,214
Cash and cash equivalents	15,520	22,500
Restricted cash (FF&E reserve escrow)	29,239	30,873
Due from related persons	39,251	38,064
Other assets, net	211,037	215,893
Total assets	5,988,925	5,967,544
LIABILITIES AND SHAREHOLDERS' EQUITY
Unsecured revolving credit facility	40,000
Unsecured term loan	400,000	400,000
Senior notes, net of discounts	2,345,527	2,295,527
Convertible senior notes	8,478	8,478
Security deposits	32,979	27,876
Accounts payable and other liabilities	112,836	130,448
Due to related persons	19,155	13,194
Dividends payable	5,166	5,166
Total liabilities	2,964,141	2,880,689
Commitments and contingencies
Preferred shares of beneficial interest, no par value, 100,000,000 shares authorized:
Common shares of beneficial interest, $.01 par value; 200,000,000 shares authorized; 149,775,483 and 149,606,024 shares issued and outstanding, respectively	1,498	1,496
Additional paid in capital	4,114,477	4,109,600
Cumulative net income	2,609,519	2,518,054
Cumulative other comprehensive income	13,053	15,952
Cumulative preferred distributions	(290,317)	(279,985)
Cumulative common distributions	(3,703,553)	(3,558,369)
Total shareholders' equity	3,024,784	3,086,855
Total liabilities and shareholders' equity	5,988,925	5,967,544
Series D
Preferred shares of beneficial interest, no par value, 100,000,000 shares authorized:
Preferred shares	$ 280,107	$ 280,107