Identified Intangible Assets And Liabilities (Schedule Of Future Amortization) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Rental Revenues [Member] \| Above-Market Leases [Member]
Finite-Lived Intangible Assets [Line Items]
2017 amortization/(accretion)	$ (3,044)
2018 amortization/(accretion)	(2,963)
2019 amortization/(accretion)	(3,346)
2020 amortization/(accretion)	(3,403)
2021 amortization/(accretion)	(3,315)
Amortization (accretion)	2,100	$ (500)	$ (1,700)
Depreciation and Amortization [Member] \| In Place Leases [Member]
Finite-Lived Intangible Assets [Line Items]
2017 amortization/(accretion)	19,789
2018 amortization/(accretion)	17,539
2019 amortization/(accretion)	15,291
2020 amortization/(accretion)	14,081
2021 amortization/(accretion)	11,930
Amortization (accretion)	18,000	12,300	12,000
Interest Expense [Member] \| Below-Market Assumed Mortgages [Member]
Finite-Lived Intangible Assets [Line Items]
2017 amortization/(accretion)	(1,100)
2018 amortization/(accretion)	(1,207)
2019 amortization/(accretion)	(1,207)
2020 amortization/(accretion)	(436)
2021 amortization/(accretion)	(287)
Amortization (accretion)	$ (1,000)	$ (700)	$ (1,000)

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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