Consolidated Statements of Comprehensive Income / (Loss) (UNITED DOMINION REALTY, L.P.) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income/(loss)	$ 159,842us-gaap_ProfitLoss	$ 46,282us-gaap_ProfitLoss	$ 220,303us-gaap_ProfitLoss
Other comprehensive income/(loss), including portion attributable to noncontrolling interests:
Unrealized holding gain/(loss)loss	(8,695)	(469)	(4,924)
(Gain)/loss reclassified into earnings from other comprehensive income/(loss)	4,834	6,851	7,649
Other comprehensive income/(loss), including portion attributable to noncontrolling interests	(3,861)	6,382	2,725
Comprehensive income/(loss)	155,981	52,664	223,028
Comprehensive (income)/loss attributable to noncontrolling interests	(5,375)	(1,720)	(8,206)
Comprehensive income/(loss) attributable to UDR, Inc.	150,606us-gaap_ComprehensiveIncomeNetOfTax	50,944us-gaap_ComprehensiveIncomeNetOfTax	214,822us-gaap_ComprehensiveIncomeNetOfTax
United Dominion Reality L.P.
Net income/(loss)	97,179	77,942	44,334
Other comprehensive income/(loss), including portion attributable to noncontrolling interests:
Unrealized holding gain/(loss)loss	(285)	(348)	(1,898)
(Gain)/loss reclassified into earnings from other comprehensive income/(loss)	2,275	2,652	3,431
Other comprehensive income/(loss), including portion attributable to noncontrolling interests	1,990	2,304	1,533
Comprehensive income/(loss)	99,169	80,246	45,867
Comprehensive (income)/loss attributable to noncontrolling interests	(952)	(4,566)	(352)
Comprehensive income/(loss) attributable to UDR, Inc.	$ 98,217	$ 75,680	$ 45,515

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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