Variable Interest Entities (Summary Of Unconsolidated Variable Interest Entities) (Details) - Unconsolidated Variable Interest Entities [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Variable Interest Entity [Line Items]
Investment in real estate joint ventures and partnerships, net	$ 0	$ 10,497
Maximum risk of loss	34,000	$ 10,992
Other Liabilities [Member]
Variable Interest Entity [Line Items]
Investment in real estate joint ventures and partnerships, net	$ (7,000)

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5728-111685

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5747-111685

Name:	us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant