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Consolidated Statements of Comprehensive Income / Loss (UNITED DOMINION REALTY, L.P.) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net (loss)/income	$ (309)	$ 86,628
Other comprehensive income/(loss):
Unrealized holding (loss)/gain	(92)	(1,959)
Loss reclassifed into earnings from other comprehensive income	1,937	1,855
Other comprehensive income/(loss)	1,845	(104)
Comprehensive (loss)/income	1,536	86,524
Comprehensive (loss)/income attributable to non-controlling interests	46	3,405
Comprehensive (loss)/income attributable to Entity	1,490	83,119
United Dominion Reality L.P. [Member]
Net (loss)/income	7,774	(6,892)
Other comprehensive income/(loss):
Unrealized holding (loss)/gain	(54)	(669)
Loss reclassifed into earnings from other comprehensive income	869	832
Other comprehensive income/(loss)	815	163
Comprehensive (loss)/income	8,589	(6,729)
Comprehensive (loss)/income attributable to non-controlling interests	(45)	(34)
Comprehensive (loss)/income attributable to Entity	$ 8,544	$ (6,763)

X

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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