Components Of Rental Income (Schedule Of Minimum Rent) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Minimum Rent [Line Items]
Straight-line rents	$ 1.5	$ 1.3	$ 2.1	$ 2.3
Below Market Leases [Member]
Minimum Rent [Line Items]
Amortization Of Acquired Below Market Leases	1.2	1.0	2.3	1.9
Above Market Leases [Member]
Minimum Rent [Line Items]
Amortization of Acquired Intangible Assets	$ (0.9)	$ (0.6)	$ (1.8)	$ (1.2)