Consolidated Balance Sheets (UNITED DOMINION REALTY, L.P) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Real estate owned:
Real estate held for investment	$ 7,479,239	$ 7,269,347
Less: accumulated depreciation	(1,769,530)	(1,605,090)
Real estate held for investment, net	5,709,709	5,664,257
Real estate under development (net of accumulated depreciation)	282,006	246,229
Real estate sold or held for sale (net of accumulated depreciation of $0 and $52,887)	0	332,258
Total real estate owned, net of accumulated depreciation	5,991,715	6,242,744
Cash and cash equivalents	184,112	12,503
Restricted cash	24,580	24,634
Deferred financing costs, net	28,579	30,068
Other assets	124,128	198,365
Total assets	6,972,621	6,721,354
LIABILITIES AND CAPITAL
Secured debt	1,442,361	1,891,553
Real estate taxes payable	13,087	13,397
Accrued interest payable	31,156	23,208
Security deposits and prepaid rent	35,534	35,516
Distributions payable	57,313	51,019
Deferred fees and gains on the sale of depreciable property	29,430	29,100
Accounts payable, accrued expenses, and other liabilities	102,793	95,485
Total liabilities	3,614,381	4,166,095
Partners' Capital:
Accumulated other comprehensive loss	(13,604)	(13,902)
Total liabilities and equity	6,972,621	6,721,354
United Dominion Reality L.P. [Member]
Real estate owned:
Real estate held for investment	4,108,893	4,062,894
Less: accumulated depreciation	(1,015,594)	(923,471)
Real estate held for investment, net	3,093,299	3,139,423
Real estate under development (net of accumulated depreciation)	30,365	26,793
Real estate sold or held for sale (net of accumulated depreciation of $0 and $52,887)	0	62,724
Total real estate owned, net of accumulated depreciation	3,123,664	3,228,940
Cash and cash equivalents	1,174	704
Restricted cash	13,633	12,568
Deferred financing costs, net	6,714	8,184
Other assets	32,881	41,771
Total assets	3,178,066	3,292,167
LIABILITIES AND CAPITAL
Secured debt	970,255	1,189,645
Notes payable due to General Partner	88,771	88,771
Real estate taxes payable	5,527	5,280
Accrued interest payable	3,799	1,886
Security deposits and prepaid rent	15,953	16,498
Distributions payable	40,752	39,840
Deferred fees and gains on the sale of depreciable property	63,838	63,838
Accounts payable, accrued expenses, and other liabilities	34,968	33,040
Total liabilities	1,223,863	1,438,798
Partners' Capital:
Operating partnership units: 184,281,253 OP units outstanding at June 30, 2012 and December 31, 2011	0	0
General partner: 110,883 OP units outstanding at June 30, 2012 and December 31, 2011	1,271	1,293
Limited partners: 184,170,371 OP units outstanding at June 30, 2012 and December 31, 2011	2,003,165	2,040,401
Accumulated other comprehensive loss	(6,590)	(6,902)
Total partners' capital	1,997,846	2,034,792
Receivable due from General Partner	(56,069)	(193,584)
Non-controlling interest	12,426	12,161
Total capital	1,954,203	1,853,369
Total liabilities and equity	$ 3,178,066	$ 3,292,167

This element includes: 1) Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business; 2) Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities; 3) Carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes.

No definition available.