The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Identified Intangible Assets And Liabilities (Schedule Of Future Amortization (Accretion) Expense) (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Dec. 23, 2013
Finite-Lived Intangible Assets [Line Items]
Ownership percentage in joint ventures		50.00%			50.00%
Leases, Acquired-in-Place, Market Adjustment [Member]
Finite-Lived Intangible Assets [Line Items]
2015	$ 1,681,000
2016	1,574,000
2017	1,473,000
2018	1,309,000
2019	815,000
Amortization (accretion)	1,700,000	(600,000)	(800,000)
Ownership percentage in joint ventures		50.00%
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
2015	10,756,000
2016	8,161,000
2017	7,635,000
2018	7,287,000
2019	6,208,000
Amortization (accretion)	12,000,000	11,600,000	7,800,000
Mortgages, Acquired-in-Place, Market Adjustment [Member]
Finite-Lived Intangible Assets [Line Items]
2015	(783,000)
2016	(750,000)
2017	(871,000)
2018	(978,000)
2019	(978,000)
Amortization (accretion)	(1,000,000)	(10,400,000)	(2,700,000)
Acceleration Of Mortgage Intangible Amortization [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization (accretion)		$ (9,700,000)		$ (9,700,000)