Components Of Rental Income (Schedule Of Minimum Rent) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Components Of Rental Income and Expense [Abstract]
Straight-line Rents	$ 1.6	$ 1.1	$ 3.9	$ 3.6
Amortization of above market leases	(0.6)	(0.5)	(1.8)	(1.5)
Amortization of below market leases	$ 0.9	$ 0.9	$ 2.8	$ 2.8