Components Of Rental Income (Schedule Of Minimum Rent) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Minimum Rent [Line Items]
Straight-line rents	$ 1.8	$ 1.6	$ 3.9	$ 3.9
Below Market Leases [Member]
Minimum Rent [Line Items]
Amortization Of Acquired Below Market Leases	1.1	0.9	3.4	2.8
Above Market Leases [Member]
Minimum Rent [Line Items]
Amortization of Acquired Intangible Assets	$ (0.8)	$ (0.6)	$ (2.6)	$ (1.8)