Joint Ventures (Tables)

12 Months Ended

Dec. 31, 2011

Joint Ventures [Abstract]

Financial information relating to unconsolidated joint ventures operations

	Year ended December 31,
	2011			2010			2009 (a)
For the year ended:
Revenues	$	201,368		$	60,234		$	48,575
Real estate depreciation and amortization		69,290			28,744			21,133
Net loss		(21,724	)		(29,737	)		(11,719	)
UDR recorded loss from unconsolidated entities		6,352			4,204			18,665

(a) Includes results of operations of joint ventures previously accounted for under the equity method through the effective date of consolidation.

Combined summary of balance sheets relating to unconsolidated joint ventures

	2011		2010
Real estate, net	$	2,908,623	$	2,692,167
Total assets		2,998,866		2,807,886
Amount due to UDR		6,251		672
Third party debt		1,499,419		1,524,872
Total liabilities		1,561,396		1,580,733
Total Equity		1,437,470		1,227,153
Equity held by non-controlling interest		14,641		14,537