Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investment in real estate:
Land	$ 1,095,365	$ 1,091,550
Land improvements	2,745,749	2,734,304
Buildings and other depreciable property	569,610	562,059
Investment in real estate	4,410,724	4,387,913
Accumulated depreciation	(1,197,782)	(1,169,492)
Net investment in real estate	3,212,942	3,218,421
Cash	102,703	73,714
Notes receivable, net	36,313	37,137
Investment in unconsolidated joint ventures	17,889	13,512
Deferred financing costs, net	25,511	21,833
Deferred commission expense	28,902	28,589
Escrow deposits, goodwill, and other assets, net	44,534	53,133
Total Assets	3,468,794	3,446,339
Liabilities:
Mortgage notes payable	2,011,738	2,012,246
Term loan	200,000	200,000
Unsecured lines of credit	0	0
Accrued payroll and other operating expenses	76,608	64,520
Deferred revenue – upfront payments from right-to-use contracts	74,947	74,174
Deferred revenue – right-to-use annual payments	13,693	9,790
Accrued interest payable	8,424	9,496
Rents and other customer payments received in advance and security deposits	69,994	67,463
Distributions payable	34,298	29,623
Total Liabilities	2,489,702	2,467,312
Stockholders’ Equity:
Preferred stock value	0	0
Common stock, $0.01 par value	840	838
Paid-in capital	1,035,275	1,029,601
Distributions in excess of accumulated earnings	(258,642)	(254,209)
Accumulated other comprehensive loss	(1,238)	(381)
Total Stockholders’ Equity	912,379	911,993
Non-controlling interests – Common OP Units	66,713	67,034
Total Equity	979,092	979,027
Total Liabilities and Equity	3,468,794	3,446,339
6.75% Series C Cumulative Redeemable Perpetual Preferred Stock
Stockholders’ Equity:
Preferred stock value	$ 136,144	$ 136,144