Supplemental Cash Flow Information (Summary Of Non-Cash Investing And Financing Activities)(Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Supplemental Cash Flow Elements [Abstract]
Accrued property construction costs	$ 6,412	$ 5,284
Increase in equity for the acquisition of noncontrolling interests in consolidated real estate joint ventures	0	11,015
Exchange of operating partnership units for common shares	111	0
Decrease in notes receivable from real estate joint ventures and partnerships in association with our contribution in an unconsolidated real estate joint venture	0	(6,431)
Increase in debt, net	20,116	0
Decrease in property, net	0	(127,837)
Decrease in real estate joint ventures and partnerships - investments	0	(17)
Decrease in other, net	0	(34)
Decrease in debt, net due to debt assumption	0	(11,069)
Decrease in security deposits	0	(459)
Decrease in noncontrolling interests	$ 0	$ (155,278)

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

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The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Noncash or Part Noncash Acquisition, Operating Partnership Units Acquired

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The amount of noncontrolling interests that another entity assumes in divesting a business or in consideration for an asset sold in a noncash (or part noncash) divestiture that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The amount of security deposts that another entity assumes in divesting a business or in consideration for an asset sold in a noncash (or part noncash) divestiture that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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