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Hurricane Related Charges (UNITED DOMINION REALTY, L.P.) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Hurricane Related Charges [Line Items]
Casualty-related (recoveries)/charges, net	$ (2,335)	$ (541)	$ 12,253
United Dominion Reality L.P.
Hurricane Related Charges [Line Items]
Casualty-related (recoveries)/charges, net	$ (843)	$ (541)	$ 8,083

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Casualty (Recoveries)/Charges

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[Line Items] for Hurricane Related Charges [Table]

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