Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Investment in real estate:
Land	$ 1,019,581	$ 1,019,581
Land improvements	2,626,613	2,624,218
Buildings and other depreciable property	540,485	527,718
Real Estate Investment Property, at Cost, Total	4,186,679	4,171,517
Accumulated depreciation	(990,671)	(963,657)
Net investment in real estate	3,196,008	3,207,860
Cash	81,821	37,140
Notes receivable, net	50,263	53,172
Investment in joint ventures	8,454	8,420
Rent and other customer receivables, net	1,008	1,206
Deferred financing costs, net	19,386	20,696
Retail Related Inventory, Merchandise	1,632	1,569
Deferred commission expense	23,305	22,842
Escrow deposits and other assets	44,689	45,321
Total Assets	3,426,566	3,398,226
Liabilities:
Mortgage notes payable	2,051,435	2,069,866
Term loan	200,000	200,000
Unsecured lines of credit	0	0
Accrued payroll and other operating expenses	63,811	63,736
Deferred revenue - upfront payments from right-to-use contracts	64,019	62,979
Deferred revenue - right-to-use annual payments	16,010	11,088
Accrued interest payable	10,520	10,548
Rents and other customer payments received in advance and security deposits	56,633	55,707
Distributions payable	22,664	0
Total Liabilities	2,485,092	2,473,924
Stockholders' Equity:
Preferred stock value	0	0
Common stock, $0.01 par value	416	416
Paid-in capital	1,014,204	1,012,930
Distributions in excess of accumulated earnings	(273,465)	(287,652)
Accumulated other comprehensive loss	(2,148)	(2,590)
Total Stockholders' Equity	875,151	859,248
Non-controlling interests - Common OP Units	66,323	65,054
Total Equity	941,474	924,302
Total Liabilities and Equity	3,426,566	3,398,226
Additional Paid-in Capital
Stockholders' Equity:
Total Equity	1,014,204	1,012,930
Accumulated Distributions in Excess of Net Income [Member]
Stockholders' Equity:
Total Equity	(273,465)	(287,652)
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity:
Total Equity	(2,148)	(2,590)
Non-controlling interests - Common OP Units
Stockholders' Equity:
Total Equity	66,323	65,054
Common Stock
Stockholders' Equity:
Total Equity	$ 416	$ 416