Supplemental Cash Flow Information (Summary Of Non-Cash Investing And Financing Activities)(Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Noncash or Part Noncash Acquisitions [Line Items]
Accrued property construction costs	$ 8,667	$ 6,159
Exchange of operating partnership units for common shares	0	111
Consolidation of Joint Venture [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Increase in property, net	58,665	0
Increase in restricted deposits and mortgage escrows	30	0
Increase in debt, net	48,727	0
Increase in security deposits	$ 169	$ 0

Future cash outflow to pay for construction in progress expenditures that have occurred.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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