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Derivatives and Hedging Activity (UNITED DOMINION REALTY, L.P.) Derivatives and Hedging Activity (UNITED DOMINION REALTY, L.P.) (Details 4) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative Liability	$ 2,112	$ 10,368
Derivative, Collateral, Right to Reclaim Securities	0	27
Derivative Liability, Fair Value, Amount Offset Against Collateral	2,112	10,341
Derivative Liability, Not Subject to Master Netting Arrangement	0	0
Derivative, Collateral, Right to Reclaim Cash	0	0
United Dominion Reality L.P.
Derivative [Line Items]
Derivative Liability	0	918
Derivative, Collateral, Right to Reclaim Securities	0	0
Derivative Liability, Fair Value, Amount Offset Against Collateral	0	918
Derivative Liability Designated as Hedging Instrument, Fair Value	0	918
Derivative Liability, Not Subject to Master Netting Arrangement	0	0
Derivative, Collateral, Right to Reclaim Cash	$ 0	$ 0

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- Definition

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

+ References

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