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Significant Accounting Policies (Schedule Of Depreciation And Useful Lives Of Real Estate And Intangible Assets) (Details)	6 Months Ended
	Jun. 30, 2018
Land [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	Not depreciated
Building [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	40 years
Building Improvements [Member] | Minimum [Member[
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	5 years
Building Improvements [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	40 years
Tenant Improvements [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	Shorter of lease term or useful life
Leasing Costs [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	Lease term
In-Place Leases [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	Lease term
Above and Below Market Leases [Member]
Finite Lived Intangible Assets [Line Items]
Standard depreciable life	Lease term

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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