Fee and Other Income (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Fee and other income
Management, development, financing and other fee income	$ 11,200,000	$ 12,000,000	$ 23,000,000	$ 24,200,000
Ancillary and other property income	6,700,000	6,800,000	12,800,000	13,600,000
Lease termination fees		800,000	500,000	1,300,000
Other miscellaneous	200,000	100,000	200,000	300,000
Total fee and other income	$ 18,069,000	$ 19,732,000	$ 36,507,000	$ 39,416,000