Schedule III - Real Estate Owned (UNITED DOMINION REALTY, L.P.) (Details) (USD $)	1 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Real Estate and Accumulated Depreciation [Line Items]
Total Carrying Value		$ 8,383,259,000	$ 8,207,977,000	$ 8,055,828,000
Accumulated Depreciation		2,434,772,000	2,208,794,000	1,924,682,000
Aggregate cost for federal income tax purposes		7,700,000,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year		8,207,977,000	8,055,828,000	8,074,471,000
Real estate acquired		231,225,000	0	141,648,000
Capital expenditures and development		326,461,000	452,057,000	422,480,000
Real estate sold	(140,000,000)	(269,681,000)	(70,687,000)	(559,154,000)
Retirement of fully depreciated assets		0	0	(13,945,000)
Hurricane related impairment of assets		(379,000)	(2,355,000)	(9,672,000)
Balance at end of the year		8,383,259,000	8,207,977,000	8,055,828,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year		2,208,794,000	1,924,682,000	1,831,727,000
Depreciation expense for the year		356,673,000	339,326,000	340,800,000
Accumulated depreciation on sales		(126,151,000)	(34,794,000)	(233,207,000)
Accumulated depreciation on retirements of fully depreciated asset		0	(1,132,000)	(13,945,000)
Write off of accumulated depreciation on hurricane related impaired assets		(316,000)	0	(693,000)
Balance at end of year		2,434,772,000	2,208,794,000	1,924,682,000
Estimated depreciable lives of buildings range beginning
Real Estate and Accumulated Depreciation [Line Items]
Depreciable life for all buildings		35 years
Estimated depreciable lives of buildings range end
Real Estate and Accumulated Depreciation [Line Items]
Depreciable life for all buildings		55 years
Other
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0	[1]
Initial Costs, Land and Land Improvements					0	[1]
Initial Costs, Buildings and Improvements					0	[1]
Total Initial Acquisition Costs					0	[1]
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,181,000	[1]
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					0	[1]
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					4,181,000	[1]
Total Carrying Value					4,181,000	[1]
Accumulated Depreciation					47,000	[1]
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					4,181,000	[1]
Balance at end of the year					4,181,000	[1]
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					47,000	[1]
Balance at end of year					47,000	[1]
TOTAL CORPORATE
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					0
Initial Costs, Buildings and Improvements					0
Total Initial Acquisition Costs					0
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,181,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					0
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					4,181,000
Total Carrying Value					4,181,000
Accumulated Depreciation					47,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					4,181,000
Balance at end of the year					4,181,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					47,000
Balance at end of year					47,000
Real Estate Under Development
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					24,584,000
Initial Costs, Buildings and Improvements					0
Total Initial Acquisition Costs					24,584,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					153,048,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					24,584,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					153,048,000
Total Carrying Value					177,632,000
Accumulated Depreciation					0
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					177,632,000
Balance at end of the year					177,632,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					0
Balance at end of year					0
Land
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					144,830,000
Initial Costs, Buildings and Improvements					2,768,000
Total Initial Acquisition Costs					147,598,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					23,655,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					151,891,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					19,362,000
Total Carrying Value					171,253,000
Accumulated Depreciation					4,215,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					171,253,000
Balance at end of the year					171,253,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					4,215,000
Balance at end of year					4,215,000
Commercial Held for Development
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					32,351,000
Initial Costs, Buildings and Improvements					19,108,000
Total Initial Acquisition Costs					51,459,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					11,359,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					40,197,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					22,621,000
Total Carrying Value					62,818,000
Accumulated Depreciation					15,097,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					62,818,000
Balance at end of the year					62,818,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					15,097,000
Balance at end of year					15,097,000
Commercial Held for Development | TOTAL COMMERCIAL & CORPORATE
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					32,351,000
Initial Costs, Buildings and Improvements					19,108,000
Total Initial Acquisition Costs					51,459,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					15,540,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					40,197,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					26,802,000
Total Carrying Value					66,999,000
Accumulated Depreciation					15,144,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					66,999,000
Balance at end of the year					66,999,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					15,144,000
Balance at end of year					15,144,000
Commercial Held for Development | Total Real Estate Owned
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					1,361,530,000
Initial Costs, Land and Land Improvements					1,788,420,000
Initial Costs, Buildings and Improvements					4,277,268,000
Total Initial Acquisition Costs					6,065,688,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,317,636,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,004,805,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					6,378,454,000
Total Carrying Value					8,383,259,000
Accumulated Depreciation					2,434,772,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					8,383,259,000
Balance at end of the year					8,383,259,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,434,772,000
Balance at end of year					2,434,772,000
Western Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					500,587,000
Initial Costs, Land and Land Improvements					876,239,000
Initial Costs, Buildings and Improvements					1,549,573,000
Total Initial Acquisition Costs					2,425,812,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					984,777,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					950,931,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					2,459,658,000
Total Carrying Value					3,410,589,000
Accumulated Depreciation					938,886,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					3,410,589,000
Balance at end of the year					3,410,589,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					938,886,000
Balance at end of year					938,886,000
Western Region | Harbor at Mesa Verde
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					50,358,000
Initial Costs, Land and Land Improvements					20,476,000
Initial Costs, Buildings and Improvements					28,538,000
Total Initial Acquisition Costs					49,014,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					12,949,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,058,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					40,905,000
Total Carrying Value					61,963,000
Accumulated Depreciation					26,242,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					61,963,000
Balance at end of the year					61,963,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,242,000
Balance at end of year					26,242,000
Western Region | 27 Seventy FIve Mesa Verde [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,660,000
Initial Costs, Land and Land Improvements					99,329,000
Initial Costs, Buildings and Improvements					110,644,000
Total Initial Acquisition Costs					209,973,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					91,693,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					112,333,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					189,333,000
Total Carrying Value					301,666,000
Accumulated Depreciation					72,689,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					301,666,000
Balance at end of the year					301,666,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					72,689,000
Balance at end of year					72,689,000
Western Region | Pacific Shores
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					34,112,000
Initial Costs, Land and Land Improvements					7,345,000
Initial Costs, Buildings and Improvements					22,624,000
Total Initial Acquisition Costs					29,969,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,150,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,759,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,360,000
Total Carrying Value					39,119,000
Accumulated Depreciation					19,665,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,119,000
Balance at end of the year					39,119,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,665,000
Balance at end of year					19,665,000
Western Region | Huntington Vista
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					27,972,000
Initial Costs, Land and Land Improvements					8,055,000
Initial Costs, Buildings and Improvements					22,486,000
Total Initial Acquisition Costs					30,541,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,637,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					8,438,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					29,740,000
Total Carrying Value					38,178,000
Accumulated Depreciation					18,655,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					38,178,000
Balance at end of the year					38,178,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,655,000
Balance at end of year					18,655,000
Western Region | Missions at Back Bay
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					229,000
Initial Costs, Buildings and Improvements					14,129,000
Total Initial Acquisition Costs					14,358,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,133,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,802,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					5,689,000
Total Carrying Value					16,491,000
Accumulated Depreciation					3,994,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					16,491,000
Balance at end of the year					16,491,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					3,994,000
Balance at end of year					3,994,000
Western Region | Coronado at Newport — North
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					62,516,000
Initial Costs, Buildings and Improvements					46,082,000
Total Initial Acquisition Costs					108,598,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					24,693,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					66,756,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					66,535,000
Total Carrying Value					133,291,000
Accumulated Depreciation					41,982,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					133,291,000
Balance at end of the year					133,291,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					41,982,000
Balance at end of year					41,982,000
Western Region | Huntington Villas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					50,771,000
Initial Costs, Land and Land Improvements					61,535,000
Initial Costs, Buildings and Improvements					18,017,000
Total Initial Acquisition Costs					79,552,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,132,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					62,223,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,461,000
Total Carrying Value					86,684,000
Accumulated Depreciation					16,061,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					86,684,000
Balance at end of the year					86,684,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,061,000
Balance at end of year					16,061,000
Western Region | Vista Del Rey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,670,000
Initial Costs, Buildings and Improvements					7,080,000
Total Initial Acquisition Costs					17,750,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,062,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,830,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,982,000
Total Carrying Value					19,812,000
Accumulated Depreciation					5,769,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,812,000
Balance at end of the year					19,812,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,769,000
Balance at end of year					5,769,000
Western Region | Coronado South
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					58,785,000
Initial Costs, Buildings and Improvements					50,067,000
Total Initial Acquisition Costs					108,852,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					17,875,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					59,277,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					67,450,000
Total Carrying Value					126,727,000
Accumulated Depreciation					40,783,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					126,727,000
Balance at end of the year					126,727,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					40,783,000
Balance at end of year					40,783,000
Western Region | ORANGE COUNTY, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					193,873,000
Initial Costs, Land and Land Improvements					412,850,000
Initial Costs, Buildings and Improvements					377,759,000
Total Initial Acquisition Costs					790,609,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					412,386,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					443,008,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					759,987,000
Total Carrying Value					1,202,995,000
Accumulated Depreciation					280,469,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,202,995,000
Balance at end of the year					1,202,995,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					280,469,000
Balance at end of year					280,469,000
Western Region | 2000 Post Street
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					9,861,000
Initial Costs, Buildings and Improvements					44,578,000
Total Initial Acquisition Costs					54,439,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,965,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,241,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					53,163,000
Total Carrying Value					63,404,000
Accumulated Depreciation					24,289,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					63,404,000
Balance at end of the year					63,404,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					24,289,000
Balance at end of year					24,289,000
Western Region | Birch Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,365,000
Initial Costs, Buildings and Improvements					16,696,000
Total Initial Acquisition Costs					21,061,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,544,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,068,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					22,537,000
Total Carrying Value					27,605,000
Accumulated Depreciation					12,889,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					27,605,000
Balance at end of the year					27,605,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,889,000
Balance at end of year					12,889,000
Western Region | Highlands Of Marin
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,996,000
Initial Costs, Buildings and Improvements					24,868,000
Total Initial Acquisition Costs					30,864,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					25,720,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,127,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					49,457,000
Total Carrying Value					56,584,000
Accumulated Depreciation					26,904,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					56,584,000
Balance at end of the year					56,584,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,904,000
Balance at end of year					26,904,000
Western Region | Marina Playa
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,224,000
Initial Costs, Buildings and Improvements					23,916,000
Total Initial Acquisition Costs					30,140,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,482,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,908,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					32,714,000
Total Carrying Value					39,622,000
Accumulated Depreciation					18,351,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,622,000
Balance at end of the year					39,622,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,351,000
Balance at end of year					18,351,000
Western Region | The Westerly
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					67,700,000
Initial Costs, Land and Land Improvements					48,182,000
Initial Costs, Buildings and Improvements					102,364,000
Total Initial Acquisition Costs					150,546,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					36,334,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					50,662,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					136,218,000
Total Carrying Value					186,880,000
Accumulated Depreciation					35,540,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					186,880,000
Balance at end of the year					186,880,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					35,540,000
Balance at end of year					35,540,000
Western Region | River Terrace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,310,000
Initial Costs, Land and Land Improvements					22,161,000
Initial Costs, Buildings and Improvements					40,137,000
Total Initial Acquisition Costs					62,298,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,315,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					22,359,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					43,254,000
Total Carrying Value					65,613,000
Accumulated Depreciation					23,857,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					65,613,000
Balance at end of the year					65,613,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					23,857,000
Balance at end of year					23,857,000
Western Region | CitySouth
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					14,031,000
Initial Costs, Buildings and Improvements					30,537,000
Total Initial Acquisition Costs					44,568,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					35,190,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,261,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					63,497,000
Total Carrying Value					79,758,000
Accumulated Depreciation					30,810,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					79,758,000
Balance at end of the year					79,758,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					30,810,000
Balance at end of year					30,810,000
Western Region | Bay Terrace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					8,545,000
Initial Costs, Buildings and Improvements					14,458,000
Total Initial Acquisition Costs					23,003,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,571,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					11,424,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					16,150,000
Total Carrying Value					27,574,000
Accumulated Depreciation					8,710,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					27,574,000
Balance at end of the year					27,574,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,710,000
Balance at end of year					8,710,000
Western Region | Highlands of Marin Phase II
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,353,000
Initial Costs, Buildings and Improvements					18,559,000
Total Initial Acquisition Costs					23,912,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					11,059,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,753,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					29,218,000
Total Carrying Value					34,971,000
Accumulated Depreciation					13,438,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					34,971,000
Balance at end of the year					34,971,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,438,000
Balance at end of year					13,438,000
Western Region | Edgewater
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					30,657,000
Initial Costs, Buildings and Improvements					83,872,000
Total Initial Acquisition Costs					114,529,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,261,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					30,687,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					87,103,000
Total Carrying Value					117,790,000
Accumulated Depreciation					34,141,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					117,790,000
Balance at end of the year					117,790,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					34,141,000
Balance at end of year					34,141,000
Western Region | Almaden Lake Village
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					27,000,000
Initial Costs, Land and Land Improvements					594,000
Initial Costs, Buildings and Improvements					42,515,000
Total Initial Acquisition Costs					43,109,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,838,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					741,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					47,206,000
Total Carrying Value					47,947,000
Accumulated Depreciation					18,420,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					47,947,000
Balance at end of the year					47,947,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,420,000
Balance at end of year					18,420,000
Western Region | SAN FRANCISCO, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					66,310,000
Initial Costs, Land and Land Improvements					147,421,000
Initial Costs, Buildings and Improvements					421,993,000
Total Initial Acquisition Costs					569,414,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					245,739,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					157,793,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					657,360,000
Total Carrying Value					815,153,000
Accumulated Depreciation					241,206,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					815,153,000
Balance at end of the year					815,153,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					241,206,000
Balance at end of year					241,206,000
Western Region | Rosebeach
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					8,414,000
Initial Costs, Buildings and Improvements					17,449,000
Total Initial Acquisition Costs					25,863,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,945,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					8,584,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,224,000
Total Carrying Value					28,808,000
Accumulated Depreciation					11,880,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					28,808,000
Balance at end of the year					28,808,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					11,880,000
Balance at end of year					11,880,000
Western Region | Ocean Villas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,135,000
Initial Costs, Buildings and Improvements					12,789,000
Total Initial Acquisition Costs					17,924,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,817,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,326,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					14,415,000
Total Carrying Value					19,741,000
Accumulated Depreciation					8,442,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,741,000
Balance at end of the year					19,741,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,442,000
Balance at end of year					8,442,000
Western Region | Other Southern CA [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					46,471,000
Initial Costs, Land and Land Improvements					31,019,000
Initial Costs, Buildings and Improvements					50,602,000
Total Initial Acquisition Costs					81,621,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					60,039,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					41,255,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					100,405,000
Total Carrying Value					141,660,000
Accumulated Depreciation					64,208,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					141,660,000
Balance at end of the year					141,660,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					64,208,000
Balance at end of year					64,208,000
Western Region | Tierra Del Rey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					32,635,000
Initial Costs, Land and Land Improvements					39,586,000
Initial Costs, Buildings and Improvements					36,679,000
Total Initial Acquisition Costs					76,265,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,008,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					39,647,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					39,626,000
Total Carrying Value					79,273,000
Accumulated Depreciation					16,561,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					79,273,000
Balance at end of the year					79,273,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,561,000
Balance at end of year					16,561,000
Western Region | LOS ANGELES, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					100,335,000
Initial Costs, Land and Land Improvements					151,833,000
Initial Costs, Buildings and Improvements					156,492,000
Total Initial Acquisition Costs					308,325,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					132,004,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					160,155,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					280,174,000
Total Carrying Value					440,329,000
Accumulated Depreciation					91,663,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					440,329,000
Balance at end of the year					440,329,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					91,663,000
Balance at end of year					91,663,000
Western Region | Crowne Pointe
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,486,000
Initial Costs, Buildings and Improvements					6,437,000
Total Initial Acquisition Costs					8,923,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,074,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,822,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					11,175,000
Total Carrying Value					13,997,000
Accumulated Depreciation					7,069,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					13,997,000
Balance at end of the year					13,997,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,069,000
Balance at end of year					7,069,000
Western Region | Hilltop
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,174,000
Initial Costs, Buildings and Improvements					7,408,000
Total Initial Acquisition Costs					9,582,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,722,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,668,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,636,000
Total Carrying Value					13,304,000
Accumulated Depreciation					6,431,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					13,304,000
Balance at end of the year					13,304,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					6,431,000
Balance at end of year					6,431,000
Western Region | The Kennedy
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,179,000
Initial Costs, Buildings and Improvements					22,307,000
Total Initial Acquisition Costs					28,486,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,742,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,242,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					23,986,000
Total Carrying Value					30,228,000
Accumulated Depreciation					12,640,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					30,228,000
Balance at end of the year					30,228,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,640,000
Balance at end of year					12,640,000
Western Region | Hearthstone at Merrill Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					22,957,000
Initial Costs, Land and Land Improvements					6,848,000
Initial Costs, Buildings and Improvements					30,922,000
Total Initial Acquisition Costs					37,770,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,180,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,984,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					33,966,000
Total Carrying Value					40,950,000
Accumulated Depreciation					13,370,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					40,950,000
Balance at end of the year					40,950,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,370,000
Balance at end of year					13,370,000
Western Region | Island Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					21,284,000
Initial Costs, Buildings and Improvements					89,389,000
Total Initial Acquisition Costs					110,673,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,086,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,413,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					93,346,000
Total Carrying Value					114,759,000
Accumulated Depreciation					34,577,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					114,759,000
Balance at end of the year					114,759,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					34,577,000
Balance at end of year					34,577,000
Western Region | SEATTLE, WA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					58,457,000
Initial Costs, Land and Land Improvements					103,975,000
Initial Costs, Buildings and Improvements					433,344,000
Total Initial Acquisition Costs					537,319,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					37,668,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					107,902,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					467,106,000
Total Carrying Value					575,008,000
Accumulated Depreciation					153,084,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					575,008,000
Balance at end of the year					575,008,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					153,084,000
Balance at end of year					153,084,000
Western Region | Villas at Carlsbad
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,517,000
Initial Costs, Buildings and Improvements					10,718,000
Total Initial Acquisition Costs					17,235,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,181,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,763,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					12,653,000
Total Carrying Value					19,416,000
Accumulated Depreciation					7,330,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,416,000
Balance at end of the year					19,416,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,330,000
Balance at end of year					7,330,000
Western Region | Boronda Manor
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,946,000
Initial Costs, Buildings and Improvements					8,982,000
Total Initial Acquisition Costs					10,928,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,398,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,169,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					17,136,000
Total Carrying Value					20,305,000
Accumulated Depreciation					8,611,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					20,305,000
Balance at end of the year					20,305,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,611,000
Balance at end of year					8,611,000
Western Region | Garden Court
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					888,000
Initial Costs, Buildings and Improvements					4,188,000
Total Initial Acquisition Costs					5,076,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,304,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,552,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,828,000
Total Carrying Value					10,380,000
Accumulated Depreciation					4,603,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					10,380,000
Balance at end of the year					10,380,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					4,603,000
Balance at end of year					4,603,000
Western Region | Cambridge Court
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,039,000
Initial Costs, Buildings and Improvements					12,883,000
Total Initial Acquisition Costs					15,922,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,266,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,274,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,914,000
Total Carrying Value					30,188,000
Accumulated Depreciation					13,065,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					30,188,000
Balance at end of the year					30,188,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,065,000
Balance at end of year					13,065,000
Western Region | Laurel Tree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,304,000
Initial Costs, Buildings and Improvements					5,115,000
Total Initial Acquisition Costs					6,419,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,872,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,139,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,152,000
Total Carrying Value					12,291,000
Accumulated Depreciation					5,264,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,291,000
Balance at end of the year					12,291,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,264,000
Balance at end of year					5,264,000
Western Region | The Pointe At Harden Ranch
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,388,000
Initial Costs, Buildings and Improvements					23,854,000
Total Initial Acquisition Costs					30,242,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					25,703,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,848,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					46,097,000
Total Carrying Value					55,945,000
Accumulated Depreciation					23,292,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					55,945,000
Balance at end of the year					55,945,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					23,292,000
Balance at end of year					23,292,000
Western Region | The Pointe At Northridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,044,000
Initial Costs, Buildings and Improvements					8,028,000
Total Initial Acquisition Costs					10,072,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,582,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,269,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					16,385,000
Total Carrying Value					19,654,000
Accumulated Depreciation					8,761,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,654,000
Balance at end of the year					19,654,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,761,000
Balance at end of year					8,761,000
Western Region | The Pointe At Westlake
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,329,000
Initial Costs, Buildings and Improvements					5,334,000
Total Initial Acquisition Costs					6,663,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,207,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,154,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,716,000
Total Carrying Value					12,870,000
Accumulated Depreciation					5,276,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,870,000
Balance at end of the year					12,870,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,276,000
Balance at end of year					5,276,000
Western Region | MONTEREY PENINSULA, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					16,938,000
Initial Costs, Buildings and Improvements					68,384,000
Total Initial Acquisition Costs					85,322,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					76,332,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					27,405,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					134,228,000
Total Carrying Value					161,633,000
Accumulated Depreciation					68,872,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					161,633,000
Balance at end of the year					161,633,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					68,872,000
Balance at end of year					68,872,000
Western Region | Verano at Rancho Cucamonga Town Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					46,471,000
Initial Costs, Land and Land Improvements					13,557,000
Initial Costs, Buildings and Improvements					3,645,000
Total Initial Acquisition Costs					17,202,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					53,385,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					23,066,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					47,521,000
Total Carrying Value					70,587,000
Accumulated Depreciation					31,638,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					70,587,000
Balance at end of the year					70,587,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					31,638,000
Balance at end of year					31,638,000
Western Region | Tualatin Heights
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,273,000
Initial Costs, Buildings and Improvements					9,134,000
Total Initial Acquisition Costs					12,407,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,517,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,839,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					15,085,000
Total Carrying Value					18,924,000
Accumulated Depreciation					9,653,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					18,924,000
Balance at end of the year					18,924,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					9,653,000
Balance at end of year					9,653,000
Western Region | Andover Park
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					16,818,000
Initial Costs, Land and Land Improvements					2,916,000
Initial Costs, Buildings and Improvements					16,995,000
Total Initial Acquisition Costs					19,911,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,174,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,210,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,875,000
Total Carrying Value					28,085,000
Accumulated Depreciation					16,127,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					28,085,000
Balance at end of the year					28,085,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,127,000
Balance at end of year					16,127,000
Western Region | Hunt Club
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					18,323,000
Initial Costs, Land and Land Improvements					6,014,000
Initial Costs, Buildings and Improvements					14,870,000
Total Initial Acquisition Costs					20,884,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,918,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,364,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,438,000
Total Carrying Value					26,802,000
Accumulated Depreciation					13,604,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					26,802,000
Balance at end of the year					26,802,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,604,000
Balance at end of year					13,604,000
Western Region | PORTLAND, OR
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					35,141,000
Initial Costs, Land and Land Improvements					12,203,000
Initial Costs, Buildings and Improvements					40,999,000
Total Initial Acquisition Costs					53,202,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					20,609,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					13,413,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					60,398,000
Total Carrying Value					73,811,000
Accumulated Depreciation					39,384,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					73,811,000
Balance at end of the year					73,811,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					39,384,000
Balance at end of year					39,384,000
Mid Atlantic Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					285,450,000
Initial Costs, Land and Land Improvements					222,920,000
Initial Costs, Buildings and Improvements					886,974,000
Total Initial Acquisition Costs					1,109,894,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					617,946,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					300,649,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,427,126,000
Total Carrying Value					1,727,775,000
Accumulated Depreciation					625,493,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,727,775,000
Balance at end of the year					1,727,775,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					625,493,000
Balance at end of year					625,493,000
Mid Atlantic Region | The Whitmore
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,418,000
Initial Costs, Buildings and Improvements					13,411,000
Total Initial Acquisition Costs					19,829,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					20,350,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,493,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					32,686,000
Total Carrying Value					40,179,000
Accumulated Depreciation					21,571,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					40,179,000
Balance at end of the year					40,179,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,571,000
Balance at end of year					21,571,000
Mid Atlantic Region | Ridgewood
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,612,000
Initial Costs, Buildings and Improvements					20,086,000
Total Initial Acquisition Costs					25,698,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,108,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,012,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					27,794,000
Total Carrying Value					33,806,000
Accumulated Depreciation					19,540,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					33,806,000
Balance at end of the year					33,806,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,540,000
Balance at end of year					19,540,000
Mid Atlantic Region | Wellington Place at Olde Town
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					32,037,000
Initial Costs, Land and Land Improvements					13,753,000
Initial Costs, Buildings and Improvements					36,059,000
Total Initial Acquisition Costs					49,812,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					17,071,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					14,650,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					52,233,000
Total Carrying Value					66,883,000
Accumulated Depreciation					32,364,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					66,883,000
Balance at end of the year					66,883,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					32,364,000
Balance at end of year					32,364,000
Mid Atlantic Region | Andover House
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					14,357,000
Initial Costs, Buildings and Improvements					51,577,000
Total Initial Acquisition Costs					65,934,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,173,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					14,373,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					54,669,000
Total Carrying Value					69,042,000
Accumulated Depreciation					24,673,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					69,042,000
Balance at end of the year					69,042,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					24,673,000
Balance at end of year					24,673,000
Mid Atlantic Region | Sullivan Place
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,137,000
Initial Costs, Buildings and Improvements					103,676,000
Total Initial Acquisition Costs					104,813,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,604,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,373,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					109,044,000
Total Carrying Value					110,417,000
Accumulated Depreciation					44,942,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					110,417,000
Balance at end of the year					110,417,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					44,942,000
Balance at end of year					44,942,000
Mid Atlantic Region | Circle Towers
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					70,606,000
Initial Costs, Land and Land Improvements					32,815,000
Initial Costs, Buildings and Improvements					107,051,000
Total Initial Acquisition Costs					139,866,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					10,812,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					33,105,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					117,573,000
Total Carrying Value					150,678,000
Accumulated Depreciation					45,360,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					150,678,000
Balance at end of the year					150,678,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					45,360,000
Balance at end of year					45,360,000
Mid Atlantic Region | Delancey at Shirlington
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					21,606,000
Initial Costs, Buildings and Improvements					66,765,000
Total Initial Acquisition Costs					88,371,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,770,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,632,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					68,509,000
Total Carrying Value					90,141,000
Accumulated Depreciation					26,624,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					90,141,000
Balance at end of the year					90,141,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,624,000
Balance at end of year					26,624,000
Mid Atlantic Region | METROPOLITAN DC
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					184,172,000
Initial Costs, Land and Land Improvements					171,742,000
Initial Costs, Buildings and Improvements					599,469,000
Total Initial Acquisition Costs					771,211,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					440,149,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					232,261,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					979,034,000
Total Carrying Value					1,211,295,000
Accumulated Depreciation					335,868,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,211,295,000
Balance at end of the year					1,211,295,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					335,868,000
Balance at end of year					335,868,000
Mid Atlantic Region | Lakeside Mill
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					12,569,000
Initial Costs, Land and Land Improvements					2,666,000
Initial Costs, Buildings and Improvements					10,109,000
Total Initial Acquisition Costs					12,775,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,581,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,985,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					14,371,000
Total Carrying Value					17,356,000
Accumulated Depreciation					10,818,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					17,356,000
Balance at end of the year					17,356,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					10,818,000
Balance at end of year					10,818,000
Mid Atlantic Region | Tamar Meadow
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,145,000
Initial Costs, Buildings and Improvements					17,150,000
Total Initial Acquisition Costs					21,295,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,089,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,577,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					21,807,000
Total Carrying Value					26,384,000
Accumulated Depreciation					14,882,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					26,384,000
Balance at end of the year					26,384,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					14,882,000
Balance at end of year					14,882,000
Mid Atlantic Region | Calvert’s Walk
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,408,000
Initial Costs, Buildings and Improvements					24,692,000
Total Initial Acquisition Costs					29,100,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,766,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,726,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,140,000
Total Carrying Value					35,866,000
Accumulated Depreciation					19,763,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					35,866,000
Balance at end of the year					35,866,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,763,000
Balance at end of year					19,763,000
Mid Atlantic Region | Liriope Apartments
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,620,000
Initial Costs, Buildings and Improvements					6,791,000
Total Initial Acquisition Costs					8,411,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,250,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,646,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,015,000
Total Carrying Value					9,661,000
Accumulated Depreciation					5,090,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					9,661,000
Balance at end of the year					9,661,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,090,000
Balance at end of year					5,090,000
Mid Atlantic Region | 20 Lambourne
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,834,000
Initial Costs, Land and Land Improvements					11,750,000
Initial Costs, Buildings and Improvements					45,590,000
Total Initial Acquisition Costs					57,340,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,433,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					12,018,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					50,755,000
Total Carrying Value					62,773,000
Accumulated Depreciation					21,218,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					62,773,000
Balance at end of the year					62,773,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,218,000
Balance at end of year					21,218,000
Mid Atlantic Region | BALTIMORE, MD
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					66,711,000
Initial Costs, Land and Land Improvements					41,660,000
Initial Costs, Buildings and Improvements					199,073,000
Total Initial Acquisition Costs					240,733,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					69,161,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					47,182,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					262,712,000
Total Carrying Value					309,894,000
Accumulated Depreciation					150,522,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					309,894,000
Balance at end of the year					309,894,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					150,522,000
Balance at end of year					150,522,000
Mid Atlantic Region | DelRey Tower [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					297,000
Initial Costs, Buildings and Improvements					12,786,000
Total Initial Acquisition Costs					13,083,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					111,790,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,447,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					115,426,000
Total Carrying Value					124,873,000
Accumulated Depreciation					2,382,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					124,873,000
Balance at end of the year					124,873,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,382,000
Balance at end of year					2,382,000
Southeastern Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					172,646,000
Initial Costs, Land and Land Improvements					94,379,000
Initial Costs, Buildings and Improvements					378,689,000
Total Initial Acquisition Costs					473,068,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					313,371,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					128,777,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					657,662,000
Total Carrying Value					786,439,000
Accumulated Depreciation					445,033,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					786,439,000
Balance at end of the year					786,439,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					445,033,000
Balance at end of year					445,033,000
Southeastern Region | Sugar Mill Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,242,000
Initial Costs, Buildings and Improvements					7,553,000
Total Initial Acquisition Costs					9,795,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,846,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,734,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					13,907,000
Total Carrying Value					16,641,000
Accumulated Depreciation					8,998,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					16,641,000
Balance at end of the year					16,641,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,998,000
Balance at end of year					8,998,000
Southeastern Region | Inlet Bay
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					7,702,000
Initial Costs, Buildings and Improvements					23,150,000
Total Initial Acquisition Costs					30,852,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,657,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,211,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					36,298,000
Total Carrying Value					45,509,000
Accumulated Depreciation					25,585,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					45,509,000
Balance at end of the year					45,509,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					25,585,000
Balance at end of year					25,585,000
Southeastern Region | MacAlpine Place
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,869,000
Initial Costs, Buildings and Improvements					36,858,000
Total Initial Acquisition Costs					47,727,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,384,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					11,408,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					43,703,000
Total Carrying Value					55,111,000
Accumulated Depreciation					27,162,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					55,111,000
Balance at end of the year					55,111,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					27,162,000
Balance at end of year					27,162,000
Southeastern Region | TAMPA, FL
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					31,239,000
Initial Costs, Land and Land Improvements					37,459,000
Initial Costs, Buildings and Improvements					139,459,000
Total Initial Acquisition Costs					176,918,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					98,437,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					54,274,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					221,081,000
Total Carrying Value					275,355,000
Accumulated Depreciation					145,461,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					275,355,000
Balance at end of the year					275,355,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					145,461,000
Balance at end of year					145,461,000
Southeastern Region | Legacy Hill
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,148,000
Initial Costs, Buildings and Improvements					5,867,000
Total Initial Acquisition Costs					7,015,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,636,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,762,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					13,889,000
Total Carrying Value					15,651,000
Accumulated Depreciation					10,830,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					15,651,000
Balance at end of the year					15,651,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					10,830,000
Balance at end of year					10,830,000
Southeastern Region | Hickory Run
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,469,000
Initial Costs, Buildings and Improvements					11,584,000
Total Initial Acquisition Costs					13,053,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,761,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,139,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,675,000
Total Carrying Value					22,814,000
Accumulated Depreciation					13,482,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					22,814,000
Balance at end of the year					22,814,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,482,000
Balance at end of year					13,482,000
Southeastern Region | Carrington Hills
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,117,000
Initial Costs, Buildings and Improvements					0
Total Initial Acquisition Costs					2,117,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					33,846,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,462,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,501,000
Total Carrying Value					35,963,000
Accumulated Depreciation					20,064,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					35,963,000
Balance at end of the year					35,963,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,064,000
Balance at end of year					20,064,000
Southeastern Region | Brookridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					708,000
Initial Costs, Buildings and Improvements					5,461,000
Total Initial Acquisition Costs					6,169,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,500,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,143,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					9,526,000
Total Carrying Value					10,669,000
Accumulated Depreciation					6,641,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					10,669,000
Balance at end of the year					10,669,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					6,641,000
Balance at end of year					6,641,000
Southeastern Region | Breckenridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					766,000
Initial Costs, Buildings and Improvements					7,714,000
Total Initial Acquisition Costs					8,480,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,357,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,258,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					11,579,000
Total Carrying Value					12,837,000
Accumulated Depreciation					7,704,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,837,000
Balance at end of the year					12,837,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,704,000
Balance at end of year					7,704,000
Southeastern Region | Polo Park
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,583,000
Initial Costs, Buildings and Improvements					16,293,000
Total Initial Acquisition Costs					20,876,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					16,042,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,643,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,275,000
Total Carrying Value					36,918,000
Accumulated Depreciation					20,471,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					36,918,000
Balance at end of the year					36,918,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,471,000
Balance at end of year					20,471,000
Southeastern Region | NASHVILLE, TN
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					38,834,000
Initial Costs, Land and Land Improvements					15,433,000
Initial Costs, Buildings and Improvements					87,608,000
Total Initial Acquisition Costs					103,041,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					88,352,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,861,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					169,532,000
Total Carrying Value					191,393,000
Accumulated Depreciation					110,604,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					191,393,000
Balance at end of the year					191,393,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					110,604,000
Balance at end of year					110,604,000
Southeastern Region | The Reserve and Park at Riverbridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,179,000
Initial Costs, Land and Land Improvements					15,968,000
Initial Costs, Buildings and Improvements					56,401,000
Total Initial Acquisition Costs					72,369,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,947,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,536,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					64,780,000
Total Carrying Value					81,316,000
Accumulated Depreciation					38,317,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					81,316,000
Balance at end of the year					81,316,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					38,317,000
Balance at end of year					38,317,000
Southeastern Region | OTHER FLORIDA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,179,000
Initial Costs, Land and Land Improvements					15,968,000
Initial Costs, Buildings and Improvements					56,401,000
Total Initial Acquisition Costs					72,369,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,947,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,536,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					64,780,000
Total Carrying Value					81,316,000
Accumulated Depreciation					38,317,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					81,316,000
Balance at end of the year					81,316,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					38,317,000
Balance at end of year					38,317,000
Northeast Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					269,748,000
Initial Costs, Land and Land Improvements					293,247,000
Initial Costs, Buildings and Improvements					1,182,479,000
Total Initial Acquisition Costs					1,475,726,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					126,125,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					292,681,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,309,170,000
Total Carrying Value					1,601,851,000
Accumulated Depreciation					256,550,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,601,851,000
Balance at end of the year					1,601,851,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					256,550,000
Balance at end of year					256,550,000
Northeast Region | Inwood West
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					56,447,000
Initial Costs, Land and Land Improvements					20,778,000
Initial Costs, Buildings and Improvements					88,096,000
Total Initial Acquisition Costs					108,874,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,034,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					19,309,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					92,599,000
Total Carrying Value					111,908,000
Accumulated Depreciation					20,102,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					111,908,000
Balance at end of the year					111,908,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,102,000
Balance at end of year					20,102,000
Northeast Region | 14 North
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,961,000
Initial Costs, Buildings and Improvements					51,175,000
Total Initial Acquisition Costs					62,136,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,563,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,999,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					55,700,000
Total Carrying Value					66,699,000
Accumulated Depreciation					12,750,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					66,699,000
Balance at end of the year					66,699,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,750,000
Balance at end of year					12,750,000
Northeast Region | BOSTON, MA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					79,286,000
Initial Costs, Land and Land Improvements					43,369,000
Initial Costs, Buildings and Improvements					265,167,000
Total Initial Acquisition Costs					308,536,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,883,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					42,041,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					281,378,000
Total Carrying Value					323,419,000
Accumulated Depreciation					65,671,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					323,419,000
Balance at end of the year					323,419,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					65,671,000
Balance at end of year					65,671,000
Northeast Region | 10 Hanover Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					190,462,000
Initial Costs, Land and Land Improvements					41,432,000
Initial Costs, Buildings and Improvements					218,983,000
Total Initial Acquisition Costs					260,415,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,396,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					41,481,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					227,330,000
Total Carrying Value					268,811,000
Accumulated Depreciation					42,678,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					268,811,000
Balance at end of the year					268,811,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					42,678,000
Balance at end of year					42,678,000
Northeast Region | 95 Wall Street
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					57,637,000
Initial Costs, Buildings and Improvements					266,255,000
Total Initial Acquisition Costs					323,892,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,296,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					57,736,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					272,452,000
Total Carrying Value					330,188,000
Accumulated Depreciation					54,973,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					330,188,000
Balance at end of the year					330,188,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					54,973,000
Balance at end of year					54,973,000
Northeast Region | NEW YORK, NY
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					190,462,000
Initial Costs, Land and Land Improvements					249,878,000
Initial Costs, Buildings and Improvements					917,312,000
Total Initial Acquisition Costs					1,167,190,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					111,242,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					250,640,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,027,792,000
Total Carrying Value					1,278,432,000
Accumulated Depreciation					190,879,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,278,432,000
Balance at end of the year					1,278,432,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					190,879,000
Balance at end of year					190,879,000
Southwestern Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					133,099,000
Initial Costs, Land and Land Improvements					99,870,000
Initial Costs, Buildings and Improvements					257,677,000
Total Initial Acquisition Costs					357,547,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					83,174,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					115,095,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					325,626,000
Total Carrying Value					440,721,000
Accumulated Depreciation					149,451,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					440,721,000
Balance at end of the year					440,721,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					149,451,000
Balance at end of year					149,451,000
Southwestern Region | THIRTY377
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,023,000
Initial Costs, Land and Land Improvements					24,036,000
Initial Costs, Buildings and Improvements					32,951,000
Total Initial Acquisition Costs					56,987,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,162,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					24,311,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					40,838,000
Total Carrying Value					65,149,000
Accumulated Depreciation					21,663,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					65,149,000
Balance at end of the year					65,149,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,663,000
Balance at end of year					21,663,000
Southwestern Region | Legacy Village
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					72,415,000
Initial Costs, Land and Land Improvements					16,882,000
Initial Costs, Buildings and Improvements					100,102,000
Total Initial Acquisition Costs					116,984,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,325,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					17,280,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					107,029,000
Total Carrying Value					124,309,000
Accumulated Depreciation					44,321,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					124,309,000
Balance at end of the year					124,309,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					44,321,000
Balance at end of year					44,321,000
Southwestern Region | DALLAS, TX
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					102,438,000
Initial Costs, Land and Land Improvements					83,453,000
Initial Costs, Buildings and Improvements					153,637,000
Total Initial Acquisition Costs					237,090,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					55,758,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					96,814,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					196,034,000
Total Carrying Value					292,848,000
Accumulated Depreciation					100,146,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					292,848,000
Balance at end of the year					292,848,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					100,146,000
Balance at end of year					100,146,000
Southwestern Region | Barton Creek Landing
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,151,000
Initial Costs, Buildings and Improvements					14,269,000
Total Initial Acquisition Costs					17,420,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					22,118,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,807,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					34,731,000
Total Carrying Value					39,538,000
Accumulated Depreciation					20,260,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,538,000
Balance at end of the year					39,538,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,260,000
Balance at end of year					20,260,000
Southwestern Region | AUSTIN, TX
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,661,000
Initial Costs, Land and Land Improvements					16,417,000
Initial Costs, Buildings and Improvements					104,040,000
Total Initial Acquisition Costs					120,457,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					27,416,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					18,281,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					129,592,000
Total Carrying Value					147,873,000
Accumulated Depreciation					49,305,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					147,873,000
Balance at end of the year					147,873,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					49,305,000
Balance at end of year					49,305,000
United Dominion Reality L.P.
Real Estate and Accumulated Depreciation [Line Items]
Total Carrying Value		4,238,770,000	4,188,480,000	4,182,920,000
Accumulated Depreciation		1,403,303,000	1,241,574,000	1,097,133,000
Aggregate cost for federal income tax purposes		3,600,000,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year		4,188,480,000	4,182,920,000	4,205,298,000
Capital expenditures and development		91,682,000	151,002,000	115,355,000
Real estate sold		(41,013,000)	(70,687,000)	(116,166,000)
Retirement of fully depreciated assets		0	0	(13,945,000)
Hurricane related impairment of assets		(379,000)	0	(7,622,000)
Balance at end of the year		4,238,770,000	4,188,480,000	4,182,920,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year		1,241,574,000	1,097,133,000	976,358,000
Depreciation expense for the year		178,719,000	179,404,000	189,362,000
Accumulated depreciation on sales		(16,674,000)	(34,794,000)	(54,085,000)
Accumulated depreciation on retirements of fully depreciated asset		0	0	(13,945,000)
Write off of accumulated depreciation on hurricane related impaired assets		(316,000)	0	(557,000)
Balance at end of year		1,403,303,000	1,241,574,000	1,097,133,000
United Dominion Reality L.P. | Estimated depreciable lives of buildings range beginning
Real Estate and Accumulated Depreciation [Line Items]
Depreciable life for all buildings		35 years
United Dominion Reality L.P. | Estimated depreciable lives of buildings range end
Real Estate and Accumulated Depreciation [Line Items]
Depreciable life for all buildings		55 years
United Dominion Reality L.P. | Los Alisos
Real Estate Owned, Gross [Roll Forward]
Retirement of fully depreciated assets		0	(74,755,000)	0
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Accumulated depreciation on retirements of fully depreciated asset		0	(169,000)	0
United Dominion Reality L.P. | Other
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0	[2]
Initial Costs, Land and Land Improvements					0	[2]
Initial Costs, Buildings and Improvements					0	[2]
Total Initial Acquisition Costs					0	[2]
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,953,000	[2]
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					0	[2]
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,953,000	[2]
Total Carrying Value					1,953,000	[2]
Accumulated Depreciation					0	[2]
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,953,000	[2]
Balance at end of the year					1,953,000	[2]
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					0	[2]
Balance at end of year					0	[2]
United Dominion Reality L.P. | TOTAL CORPORATE
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					0
Initial Costs, Buildings and Improvements					0
Total Initial Acquisition Costs					0
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,953,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					0
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,953,000
Total Carrying Value					1,953,000
Accumulated Depreciation					0
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					1,953,000
Balance at end of the year					1,953,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					0
Balance at end of year					0
United Dominion Reality L.P. | Real Estate Under Development | DelRey Tower [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					297,000
Initial Costs, Buildings and Improvements					12,786,000
Total Initial Acquisition Costs					13,083,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					111,790,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,447,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					115,426,000
Total Carrying Value					124,873,000
Accumulated Depreciation					2,382,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					124,873,000
Balance at end of the year					124,873,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,382,000
Balance at end of year					2,382,000
United Dominion Reality L.P. | Commercial Held for Development
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,407,000
Initial Costs, Buildings and Improvements					4,498,000
Total Initial Acquisition Costs					5,905,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,516,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,380,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					6,041,000
Total Carrying Value					7,421,000
Accumulated Depreciation					2,232,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					7,421,000
Balance at end of the year					7,421,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,232,000
Balance at end of year					2,232,000
United Dominion Reality L.P. | Commercial Held for Development | Office Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,407,000
Initial Costs, Buildings and Improvements					4,498,000
Total Initial Acquisition Costs					5,905,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,516,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,380,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					6,041,000
Total Carrying Value					7,421,000
Accumulated Depreciation					2,232,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					7,421,000
Balance at end of the year					7,421,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,232,000
Balance at end of year					2,232,000
United Dominion Reality L.P. | Commercial Held for Development | TOTAL COMMERCIAL & CORPORATE
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,407,000
Initial Costs, Buildings and Improvements					4,498,000
Total Initial Acquisition Costs					5,905,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,469,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,380,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					7,994,000
Total Carrying Value					9,374,000
Accumulated Depreciation					2,232,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					9,374,000
Balance at end of the year					9,374,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					2,232,000
Balance at end of year					2,232,000
United Dominion Reality L.P. | Commercial Held for Development | Total Real Estate Owned
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					931,959,000
Initial Costs, Land and Land Improvements					922,488,000
Initial Costs, Buildings and Improvements					2,469,882,000
Total Initial Acquisition Costs					3,392,370,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					846,400,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,008,014,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					3,230,756,000
Total Carrying Value					4,238,770,000
Accumulated Depreciation					1,403,303,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					4,238,770,000
Balance at end of the year					4,238,770,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					1,403,303,000
Balance at end of year					1,403,303,000
United Dominion Reality L.P. | Western Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					397,387,000
Initial Costs, Land and Land Improvements					578,048,000
Initial Costs, Buildings and Improvements					1,006,929,000
Total Initial Acquisition Costs					1,584,977,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					466,329,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					640,378,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					1,410,928,000
Total Carrying Value					2,051,306,000
Accumulated Depreciation					715,843,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					2,051,306,000
Balance at end of the year					2,051,306,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					715,843,000
Balance at end of year					715,843,000
United Dominion Reality L.P. | Western Region | Harbor at Mesa Verde
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					50,358,000
Initial Costs, Land and Land Improvements					20,476,000
Initial Costs, Buildings and Improvements					28,538,000
Total Initial Acquisition Costs					49,014,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					12,949,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,058,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					40,905,000
Total Carrying Value					61,963,000
Accumulated Depreciation					26,242,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					61,963,000
Balance at end of the year					61,963,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,242,000
Balance at end of year					26,242,000
United Dominion Reality L.P. | Western Region | 27 Seventy FIve Mesa Verde [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,660,000
Initial Costs, Land and Land Improvements					99,329,000
Initial Costs, Buildings and Improvements					110,644,000
Total Initial Acquisition Costs					209,973,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					91,693,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					112,333,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					189,333,000
Total Carrying Value					301,666,000
Accumulated Depreciation					72,689,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					301,666,000
Balance at end of the year					301,666,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					72,689,000
Balance at end of year					72,689,000
United Dominion Reality L.P. | Western Region | Pacific Shores
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					34,112,000
Initial Costs, Land and Land Improvements					7,345,000
Initial Costs, Buildings and Improvements					22,624,000
Total Initial Acquisition Costs					29,969,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,150,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,759,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,360,000
Total Carrying Value					39,119,000
Accumulated Depreciation					19,665,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,119,000
Balance at end of the year					39,119,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,665,000
Balance at end of year					19,665,000
United Dominion Reality L.P. | Western Region | Huntington Vista
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					27,972,000
Initial Costs, Land and Land Improvements					8,055,000
Initial Costs, Buildings and Improvements					22,486,000
Total Initial Acquisition Costs					30,541,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,637,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					8,438,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					29,740,000
Total Carrying Value					38,178,000
Accumulated Depreciation					18,655,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					38,178,000
Balance at end of the year					38,178,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,655,000
Balance at end of year					18,655,000
United Dominion Reality L.P. | Western Region | Missions at Back Bay
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					229,000
Initial Costs, Buildings and Improvements					14,129,000
Total Initial Acquisition Costs					14,358,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,133,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,802,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					5,689,000
Total Carrying Value					16,491,000
Accumulated Depreciation					3,994,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					16,491,000
Balance at end of the year					16,491,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					3,994,000
Balance at end of year					3,994,000
United Dominion Reality L.P. | Western Region | Coronado at Newport — North
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					62,516,000
Initial Costs, Buildings and Improvements					46,082,000
Total Initial Acquisition Costs					108,598,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					24,693,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					66,756,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					66,535,000
Total Carrying Value					133,291,000
Accumulated Depreciation					41,982,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					133,291,000
Balance at end of the year					133,291,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					41,982,000
Balance at end of year					41,982,000
United Dominion Reality L.P. | Western Region | Huntington Villas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					50,771,000
Initial Costs, Land and Land Improvements					61,535,000
Initial Costs, Buildings and Improvements					18,017,000
Total Initial Acquisition Costs					79,552,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,132,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					62,223,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,461,000
Total Carrying Value					86,684,000
Accumulated Depreciation					16,061,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					86,684,000
Balance at end of the year					86,684,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,061,000
Balance at end of year					16,061,000
United Dominion Reality L.P. | Western Region | Vista Del Rey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,670,000
Initial Costs, Buildings and Improvements					7,080,000
Total Initial Acquisition Costs					17,750,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,062,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,830,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,982,000
Total Carrying Value					19,812,000
Accumulated Depreciation					5,769,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,812,000
Balance at end of the year					19,812,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,769,000
Balance at end of year					5,769,000
United Dominion Reality L.P. | Western Region | Coronado South
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					58,785,000
Initial Costs, Buildings and Improvements					50,067,000
Total Initial Acquisition Costs					108,852,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					17,875,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					59,277,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					67,450,000
Total Carrying Value					126,727,000
Accumulated Depreciation					40,783,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					126,727,000
Balance at end of the year					126,727,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					40,783,000
Balance at end of year					40,783,000
United Dominion Reality L.P. | Western Region | ORANGE COUNTY, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					193,873,000
Initial Costs, Land and Land Improvements					328,940,000
Initial Costs, Buildings and Improvements					319,667,000
Total Initial Acquisition Costs					648,607,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					175,324,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					359,476,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					464,455,000
Total Carrying Value					823,931,000
Accumulated Depreciation					245,840,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					823,931,000
Balance at end of the year					823,931,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					245,840,000
Balance at end of year					245,840,000
United Dominion Reality L.P. | Western Region | 2000 Post Street
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					9,861,000
Initial Costs, Buildings and Improvements					44,578,000
Total Initial Acquisition Costs					54,439,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,965,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,241,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					53,163,000
Total Carrying Value					63,404,000
Accumulated Depreciation					24,289,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					63,404,000
Balance at end of the year					63,404,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					24,289,000
Balance at end of year					24,289,000
United Dominion Reality L.P. | Western Region | Birch Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,365,000
Initial Costs, Buildings and Improvements					16,696,000
Total Initial Acquisition Costs					21,061,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,544,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,068,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					22,537,000
Total Carrying Value					27,605,000
Accumulated Depreciation					12,889,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					27,605,000
Balance at end of the year					27,605,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,889,000
Balance at end of year					12,889,000
United Dominion Reality L.P. | Western Region | Highlands Of Marin
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,996,000
Initial Costs, Buildings and Improvements					24,868,000
Total Initial Acquisition Costs					30,864,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					25,720,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,127,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					49,457,000
Total Carrying Value					56,584,000
Accumulated Depreciation					26,904,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					56,584,000
Balance at end of the year					56,584,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,904,000
Balance at end of year					26,904,000
United Dominion Reality L.P. | Western Region | Marina Playa
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,224,000
Initial Costs, Buildings and Improvements					23,916,000
Total Initial Acquisition Costs					30,140,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,482,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,908,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					32,714,000
Total Carrying Value					39,622,000
Accumulated Depreciation					18,351,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,622,000
Balance at end of the year					39,622,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,351,000
Balance at end of year					18,351,000
United Dominion Reality L.P. | Western Region | River Terrace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,310,000
Initial Costs, Land and Land Improvements					22,161,000
Initial Costs, Buildings and Improvements					40,137,000
Total Initial Acquisition Costs					62,298,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,315,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					22,359,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					43,254,000
Total Carrying Value					65,613,000
Accumulated Depreciation					23,857,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					65,613,000
Balance at end of the year					65,613,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					23,857,000
Balance at end of year					23,857,000
United Dominion Reality L.P. | Western Region | CitySouth
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					14,031,000
Initial Costs, Buildings and Improvements					30,537,000
Total Initial Acquisition Costs					44,568,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					35,190,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,261,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					63,497,000
Total Carrying Value					79,758,000
Accumulated Depreciation					30,810,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					79,758,000
Balance at end of the year					79,758,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					30,810,000
Balance at end of year					30,810,000
United Dominion Reality L.P. | Western Region | Bay Terrace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					8,545,000
Initial Costs, Buildings and Improvements					14,458,000
Total Initial Acquisition Costs					23,003,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,571,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					11,424,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					16,150,000
Total Carrying Value					27,574,000
Accumulated Depreciation					8,710,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					27,574,000
Balance at end of the year					27,574,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,710,000
Balance at end of year					8,710,000
United Dominion Reality L.P. | Western Region | Highlands of Marin Phase II
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,353,000
Initial Costs, Buildings and Improvements					18,559,000
Total Initial Acquisition Costs					23,912,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					11,059,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,753,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					29,218,000
Total Carrying Value					34,971,000
Accumulated Depreciation					13,438,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					34,971,000
Balance at end of the year					34,971,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,438,000
Balance at end of year					13,438,000
United Dominion Reality L.P. | Western Region | Edgewater
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					30,657,000
Initial Costs, Buildings and Improvements					83,872,000
Total Initial Acquisition Costs					114,529,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,261,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					30,687,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					87,103,000
Total Carrying Value					117,790,000
Accumulated Depreciation					34,141,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					117,790,000
Balance at end of the year					117,790,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					34,141,000
Balance at end of year					34,141,000
United Dominion Reality L.P. | Western Region | Almaden Lake Village
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					27,000,000
Initial Costs, Land and Land Improvements					594,000
Initial Costs, Buildings and Improvements					42,515,000
Total Initial Acquisition Costs					43,109,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,838,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					741,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					47,206,000
Total Carrying Value					47,947,000
Accumulated Depreciation					18,420,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					47,947,000
Balance at end of the year					47,947,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					18,420,000
Balance at end of year					18,420,000
United Dominion Reality L.P. | Western Region | SAN FRANCISCO, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					66,310,000
Initial Costs, Land and Land Improvements					107,787,000
Initial Costs, Buildings and Improvements					340,136,000
Total Initial Acquisition Costs					447,923,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					112,945,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					116,569,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					444,299,000
Total Carrying Value					560,868,000
Accumulated Depreciation					211,809,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					560,868,000
Balance at end of the year					560,868,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					211,809,000
Balance at end of year					211,809,000
United Dominion Reality L.P. | Western Region | Rosebeach
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					8,414,000
Initial Costs, Buildings and Improvements					17,449,000
Total Initial Acquisition Costs					25,863,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,945,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					8,584,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,224,000
Total Carrying Value					28,808,000
Accumulated Depreciation					11,880,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					28,808,000
Balance at end of the year					28,808,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					11,880,000
Balance at end of year					11,880,000
United Dominion Reality L.P. | Western Region | Ocean Villas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,135,000
Initial Costs, Buildings and Improvements					12,789,000
Total Initial Acquisition Costs					17,924,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,817,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,326,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					14,415,000
Total Carrying Value					19,741,000
Accumulated Depreciation					8,442,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,741,000
Balance at end of the year					19,741,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,442,000
Balance at end of year					8,442,000
United Dominion Reality L.P. | Western Region | Other Southern CA [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					46,471,000
Initial Costs, Land and Land Improvements					25,209,000
Initial Costs, Buildings and Improvements					27,152,000
Total Initial Acquisition Costs					52,361,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					57,383,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					35,155,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					74,589,000
Total Carrying Value					109,744,000
Accumulated Depreciation					47,410,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					109,744,000
Balance at end of the year					109,744,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					47,410,000
Balance at end of year					47,410,000
United Dominion Reality L.P. | Western Region | Tierra Del Rey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					32,635,000
Initial Costs, Land and Land Improvements					39,586,000
Initial Costs, Buildings and Improvements					36,679,000
Total Initial Acquisition Costs					76,265,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,008,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					39,647,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					39,626,000
Total Carrying Value					79,273,000
Accumulated Depreciation					16,561,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					79,273,000
Balance at end of the year					79,273,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,561,000
Balance at end of year					16,561,000
United Dominion Reality L.P. | Western Region | LOS ANGELES, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					32,635,000
Initial Costs, Land and Land Improvements					48,000,000
Initial Costs, Buildings and Improvements					54,128,000
Total Initial Acquisition Costs					102,128,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,953,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					48,231,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					59,850,000
Total Carrying Value					108,081,000
Accumulated Depreciation					28,441,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					108,081,000
Balance at end of the year					108,081,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					28,441,000
Balance at end of year					28,441,000
United Dominion Reality L.P. | Western Region | Crowne Pointe
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,486,000
Initial Costs, Buildings and Improvements					6,437,000
Total Initial Acquisition Costs					8,923,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,074,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,822,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					11,175,000
Total Carrying Value					13,997,000
Accumulated Depreciation					7,069,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					13,997,000
Balance at end of the year					13,997,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,069,000
Balance at end of year					7,069,000
United Dominion Reality L.P. | Western Region | Hilltop
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,174,000
Initial Costs, Buildings and Improvements					7,408,000
Total Initial Acquisition Costs					9,582,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,722,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,668,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,636,000
Total Carrying Value					13,304,000
Accumulated Depreciation					6,431,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					13,304,000
Balance at end of the year					13,304,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					6,431,000
Balance at end of year					6,431,000
United Dominion Reality L.P. | Western Region | The Kennedy
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,179,000
Initial Costs, Buildings and Improvements					22,307,000
Total Initial Acquisition Costs					28,486,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,742,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,242,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					23,986,000
Total Carrying Value					30,228,000
Accumulated Depreciation					12,640,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					30,228,000
Balance at end of the year					30,228,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,640,000
Balance at end of year					12,640,000
United Dominion Reality L.P. | Western Region | Hearthstone at Merrill Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					22,957,000
Initial Costs, Land and Land Improvements					6,848,000
Initial Costs, Buildings and Improvements					30,922,000
Total Initial Acquisition Costs					37,770,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,180,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,984,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					33,966,000
Total Carrying Value					40,950,000
Accumulated Depreciation					13,370,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					40,950,000
Balance at end of the year					40,950,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,370,000
Balance at end of year					13,370,000
United Dominion Reality L.P. | Western Region | Island Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					21,284,000
Initial Costs, Buildings and Improvements					89,389,000
Total Initial Acquisition Costs					110,673,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,086,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,413,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					93,346,000
Total Carrying Value					114,759,000
Accumulated Depreciation					34,577,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					114,759,000
Balance at end of the year					114,759,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					34,577,000
Balance at end of year					34,577,000
United Dominion Reality L.P. | Western Region | SEATTLE, WA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					22,957,000
Initial Costs, Land and Land Improvements					38,971,000
Initial Costs, Buildings and Improvements					156,463,000
Total Initial Acquisition Costs					195,434,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					17,804,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					40,129,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					173,109,000
Total Carrying Value					213,238,000
Accumulated Depreciation					74,087,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					213,238,000
Balance at end of the year					213,238,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					74,087,000
Balance at end of year					74,087,000
United Dominion Reality L.P. | Western Region | Villas at Carlsbad
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,517,000
Initial Costs, Buildings and Improvements					10,718,000
Total Initial Acquisition Costs					17,235,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					2,181,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,763,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					12,653,000
Total Carrying Value					19,416,000
Accumulated Depreciation					7,330,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,416,000
Balance at end of the year					19,416,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,330,000
Balance at end of year					7,330,000
United Dominion Reality L.P. | Western Region | Boronda Manor
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,946,000
Initial Costs, Buildings and Improvements					8,982,000
Total Initial Acquisition Costs					10,928,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,377,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,169,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					17,136,000
Total Carrying Value					20,305,000
Accumulated Depreciation					8,611,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					20,305,000
Balance at end of the year					20,305,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,611,000
Balance at end of year					8,611,000
United Dominion Reality L.P. | Western Region | Garden Court
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					888,000
Initial Costs, Buildings and Improvements					4,188,000
Total Initial Acquisition Costs					5,076,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,304,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,552,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,828,000
Total Carrying Value					10,380,000
Accumulated Depreciation					4,603,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					10,380,000
Balance at end of the year					10,380,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					4,603,000
Balance at end of year					4,603,000
United Dominion Reality L.P. | Western Region | Cambridge Court
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,039,000
Initial Costs, Buildings and Improvements					12,883,000
Total Initial Acquisition Costs					15,922,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,266,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,274,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,914,000
Total Carrying Value					30,188,000
Accumulated Depreciation					13,065,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					30,188,000
Balance at end of the year					30,188,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,065,000
Balance at end of year					13,065,000
United Dominion Reality L.P. | Western Region | Laurel Tree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,304,000
Initial Costs, Buildings and Improvements					5,115,000
Total Initial Acquisition Costs					6,419,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,872,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,139,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,152,000
Total Carrying Value					12,291,000
Accumulated Depreciation					5,264,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,291,000
Balance at end of the year					12,291,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,264,000
Balance at end of year					5,264,000
United Dominion Reality L.P. | Western Region | The Pointe At Harden Ranch
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,388,000
Initial Costs, Buildings and Improvements					23,854,000
Total Initial Acquisition Costs					30,242,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					25,703,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,848,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					46,097,000
Total Carrying Value					55,945,000
Accumulated Depreciation					23,292,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					55,945,000
Balance at end of the year					55,945,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					23,292,000
Balance at end of year					23,292,000
United Dominion Reality L.P. | Western Region | The Pointe At Northridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,044,000
Initial Costs, Buildings and Improvements					8,028,000
Total Initial Acquisition Costs					10,072,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,582,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,269,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					16,385,000
Total Carrying Value					19,654,000
Accumulated Depreciation					8,761,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					19,654,000
Balance at end of the year					19,654,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,761,000
Balance at end of year					8,761,000
United Dominion Reality L.P. | Western Region | The Pointe At Westlake
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,329,000
Initial Costs, Buildings and Improvements					5,334,000
Total Initial Acquisition Costs					6,663,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,207,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,154,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					10,716,000
Total Carrying Value					12,870,000
Accumulated Depreciation					5,276,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,870,000
Balance at end of the year					12,870,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,276,000
Balance at end of year					5,276,000
United Dominion Reality L.P. | Western Region | MONTEREY PENINSULA, CA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					16,938,000
Initial Costs, Buildings and Improvements					68,384,000
Total Initial Acquisition Costs					85,322,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					76,311,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					27,405,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					134,228,000
Total Carrying Value					161,633,000
Accumulated Depreciation					68,872,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					161,633,000
Balance at end of the year					161,633,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					68,872,000
Balance at end of year					68,872,000
United Dominion Reality L.P. | Western Region | Verano at Rancho Cucamonga Town Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					46,471,000
Initial Costs, Land and Land Improvements					13,557,000
Initial Costs, Buildings and Improvements					3,645,000
Total Initial Acquisition Costs					17,202,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					53,385,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					23,066,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					47,521,000
Total Carrying Value					70,587,000
Accumulated Depreciation					31,638,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					70,587,000
Balance at end of the year					70,587,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					31,638,000
Balance at end of year					31,638,000
United Dominion Reality L.P. | Western Region | Tualatin Heights
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,273,000
Initial Costs, Buildings and Improvements					9,134,000
Total Initial Acquisition Costs					12,407,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,517,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,839,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					15,085,000
Total Carrying Value					18,924,000
Accumulated Depreciation					9,653,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					18,924,000
Balance at end of the year					18,924,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					9,653,000
Balance at end of year					9,653,000
United Dominion Reality L.P. | Western Region | Andover Park
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					16,818,000
Initial Costs, Land and Land Improvements					2,916,000
Initial Costs, Buildings and Improvements					16,995,000
Total Initial Acquisition Costs					19,911,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,174,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					3,210,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					24,875,000
Total Carrying Value					28,085,000
Accumulated Depreciation					16,127,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					28,085,000
Balance at end of the year					28,085,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					16,127,000
Balance at end of year					16,127,000
United Dominion Reality L.P. | Western Region | Hunt Club
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					18,323,000
Initial Costs, Land and Land Improvements					6,014,000
Initial Costs, Buildings and Improvements					14,870,000
Total Initial Acquisition Costs					20,884,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,918,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,364,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,438,000
Total Carrying Value					26,802,000
Accumulated Depreciation					13,604,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					26,802,000
Balance at end of the year					26,802,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,604,000
Balance at end of year					13,604,000
United Dominion Reality L.P. | Western Region | PORTLAND, OR
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					35,141,000
Initial Costs, Land and Land Improvements					12,203,000
Initial Costs, Buildings and Improvements					40,999,000
Total Initial Acquisition Costs					53,202,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					20,609,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					13,413,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					60,398,000
Total Carrying Value					73,811,000
Accumulated Depreciation					39,384,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					73,811,000
Balance at end of the year					73,811,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					39,384,000
Balance at end of year					39,384,000
United Dominion Reality L.P. | Mid Atlantic Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					146,046,000
Initial Costs, Land and Land Improvements					120,584,000
Initial Costs, Buildings and Improvements					515,743,000
Total Initial Acquisition Costs					636,327,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					201,732,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					134,037,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					704,022,000
Total Carrying Value					838,059,000
Accumulated Depreciation					289,227,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					838,059,000
Balance at end of the year					838,059,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					289,227,000
Balance at end of year					289,227,000
United Dominion Reality L.P. | Mid Atlantic Region | The Whitmore
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					6,418,000
Initial Costs, Buildings and Improvements					13,411,000
Total Initial Acquisition Costs					19,829,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					20,350,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					7,493,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					32,686,000
Total Carrying Value					40,179,000
Accumulated Depreciation					21,571,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					40,179,000
Balance at end of the year					40,179,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,571,000
Balance at end of year					21,571,000
United Dominion Reality L.P. | Mid Atlantic Region | Ridgewood
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					5,612,000
Initial Costs, Buildings and Improvements					20,086,000
Total Initial Acquisition Costs					25,698,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,108,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					6,012,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					27,794,000
Total Carrying Value					33,806,000
Accumulated Depreciation					19,540,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					33,806,000
Balance at end of the year					33,806,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,540,000
Balance at end of year					19,540,000
United Dominion Reality L.P. | Mid Atlantic Region | Wellington Place at Olde Town
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					32,037,000
Initial Costs, Land and Land Improvements					13,753,000
Initial Costs, Buildings and Improvements					36,059,000
Total Initial Acquisition Costs					49,812,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					17,071,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					14,650,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					52,233,000
Total Carrying Value					66,883,000
Accumulated Depreciation					32,364,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					66,883,000
Balance at end of the year					66,883,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					32,364,000
Balance at end of year					32,364,000
United Dominion Reality L.P. | Mid Atlantic Region | Andover House
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					14,357,000
Initial Costs, Buildings and Improvements					51,577,000
Total Initial Acquisition Costs					65,934,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,108,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					14,373,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					54,669,000
Total Carrying Value					69,042,000
Accumulated Depreciation					24,673,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					69,042,000
Balance at end of the year					69,042,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					24,673,000
Balance at end of year					24,673,000
United Dominion Reality L.P. | Mid Atlantic Region | Sullivan Place
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,137,000
Initial Costs, Buildings and Improvements					103,676,000
Total Initial Acquisition Costs					104,813,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,604,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,373,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					109,044,000
Total Carrying Value					110,417,000
Accumulated Depreciation					44,942,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					110,417,000
Balance at end of the year					110,417,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					44,942,000
Balance at end of year					44,942,000
United Dominion Reality L.P. | Mid Atlantic Region | Circle Towers
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					70,606,000
Initial Costs, Land and Land Improvements					32,815,000
Initial Costs, Buildings and Improvements					107,051,000
Total Initial Acquisition Costs					139,866,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					10,812,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					33,105,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					117,573,000
Total Carrying Value					150,678,000
Accumulated Depreciation					45,360,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					150,678,000
Balance at end of the year					150,678,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					45,360,000
Balance at end of year					45,360,000
United Dominion Reality L.P. | Mid Atlantic Region | Delancey at Shirlington
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					21,606,000
Initial Costs, Buildings and Improvements					66,765,000
Total Initial Acquisition Costs					88,371,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,770,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					21,632,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					68,509,000
Total Carrying Value					90,141,000
Accumulated Depreciation					26,624,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					90,141,000
Balance at end of the year					90,141,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					26,624,000
Balance at end of year					26,624,000
United Dominion Reality L.P. | Mid Atlantic Region | METROPOLITAN DC
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					102,643,000
Initial Costs, Land and Land Improvements					95,995,000
Initial Costs, Buildings and Improvements					411,411,000
Total Initial Acquisition Costs					507,406,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					178,613,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					108,085,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					577,934,000
Total Carrying Value					686,019,000
Accumulated Depreciation					217,456,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					686,019,000
Balance at end of the year					686,019,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					217,456,000
Balance at end of year					217,456,000
United Dominion Reality L.P. | Mid Atlantic Region | Lakeside Mill
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					12,569,000
Initial Costs, Land and Land Improvements					2,666,000
Initial Costs, Buildings and Improvements					10,109,000
Total Initial Acquisition Costs					12,775,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,581,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,985,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					14,371,000
Total Carrying Value					17,356,000
Accumulated Depreciation					10,818,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					17,356,000
Balance at end of the year					17,356,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					10,818,000
Balance at end of year					10,818,000
United Dominion Reality L.P. | Mid Atlantic Region | Tamar Meadow
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,145,000
Initial Costs, Buildings and Improvements					17,150,000
Total Initial Acquisition Costs					21,295,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,089,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,577,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					21,807,000
Total Carrying Value					26,384,000
Accumulated Depreciation					14,882,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					26,384,000
Balance at end of the year					26,384,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					14,882,000
Balance at end of year					14,882,000
United Dominion Reality L.P. | Mid Atlantic Region | Calvert’s Walk
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,408,000
Initial Costs, Buildings and Improvements					24,692,000
Total Initial Acquisition Costs					29,100,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,766,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,726,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,140,000
Total Carrying Value					35,866,000
Accumulated Depreciation					19,763,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					35,866,000
Balance at end of the year					35,866,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					19,763,000
Balance at end of year					19,763,000
United Dominion Reality L.P. | Mid Atlantic Region | Liriope Apartments
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,620,000
Initial Costs, Buildings and Improvements					6,791,000
Total Initial Acquisition Costs					8,411,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					1,250,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,646,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					8,015,000
Total Carrying Value					9,661,000
Accumulated Depreciation					5,090,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					9,661,000
Balance at end of the year					9,661,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					5,090,000
Balance at end of year					5,090,000
United Dominion Reality L.P. | Mid Atlantic Region | 20 Lambourne
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,834,000
Initial Costs, Land and Land Improvements					11,750,000
Initial Costs, Buildings and Improvements					45,590,000
Total Initial Acquisition Costs					57,340,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					5,433,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					12,018,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					50,755,000
Total Carrying Value					62,773,000
Accumulated Depreciation					21,218,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					62,773,000
Balance at end of the year					62,773,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,218,000
Balance at end of year					21,218,000
United Dominion Reality L.P. | Mid Atlantic Region | BALTIMORE, MD
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					43,403,000
Initial Costs, Land and Land Improvements					24,589,000
Initial Costs, Buildings and Improvements					104,332,000
Total Initial Acquisition Costs					128,921,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					23,119,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					25,952,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					126,088,000
Total Carrying Value					152,040,000
Accumulated Depreciation					71,771,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					152,040,000
Balance at end of the year					152,040,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					71,771,000
Balance at end of year					71,771,000
United Dominion Reality L.P. | Southeastern Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,179,000
Initial Costs, Land and Land Improvements					47,572,000
Initial Costs, Buildings and Improvements					170,881,000
Total Initial Acquisition Costs					218,453,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					114,976,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					56,296,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					277,133,000
Total Carrying Value					333,429,000
Accumulated Depreciation					179,254,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					333,429,000
Balance at end of the year					333,429,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					179,254,000
Balance at end of year					179,254,000
United Dominion Reality L.P. | Southeastern Region | Sugar Mill Creek
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,242,000
Initial Costs, Buildings and Improvements					7,553,000
Total Initial Acquisition Costs					9,795,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,846,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,734,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					13,907,000
Total Carrying Value					16,641,000
Accumulated Depreciation					8,998,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					16,641,000
Balance at end of the year					16,641,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					8,998,000
Balance at end of year					8,998,000
United Dominion Reality L.P. | Southeastern Region | Inlet Bay
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					7,702,000
Initial Costs, Buildings and Improvements					23,150,000
Total Initial Acquisition Costs					30,852,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,657,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					9,211,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					36,298,000
Total Carrying Value					45,509,000
Accumulated Depreciation					25,585,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					45,509,000
Balance at end of the year					45,509,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					25,585,000
Balance at end of year					25,585,000
United Dominion Reality L.P. | Southeastern Region | MacAlpine Place
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,869,000
Initial Costs, Buildings and Improvements					36,858,000
Total Initial Acquisition Costs					47,727,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,384,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					11,408,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					43,703,000
Total Carrying Value					55,111,000
Accumulated Depreciation					27,162,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					55,111,000
Balance at end of the year					55,111,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					27,162,000
Balance at end of year					27,162,000
United Dominion Reality L.P. | Southeastern Region | TAMPA, FL
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					20,813,000
Initial Costs, Buildings and Improvements					67,561,000
Total Initial Acquisition Costs					88,374,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					28,887,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					23,353,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					93,908,000
Total Carrying Value					117,261,000
Accumulated Depreciation					61,745,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					117,261,000
Balance at end of the year					117,261,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					61,745,000
Balance at end of year					61,745,000
United Dominion Reality L.P. | Southeastern Region | Legacy Hill
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,148,000
Initial Costs, Buildings and Improvements					5,867,000
Total Initial Acquisition Costs					7,015,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,636,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,762,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					13,889,000
Total Carrying Value					15,651,000
Accumulated Depreciation					10,830,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					15,651,000
Balance at end of the year					15,651,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					10,830,000
Balance at end of year					10,830,000
United Dominion Reality L.P. | Southeastern Region | Hickory Run
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					1,469,000
Initial Costs, Buildings and Improvements					11,584,000
Total Initial Acquisition Costs					13,053,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					9,761,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					2,139,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					20,675,000
Total Carrying Value					22,814,000
Accumulated Depreciation					13,482,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					22,814,000
Balance at end of the year					22,814,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					13,482,000
Balance at end of year					13,482,000
United Dominion Reality L.P. | Southeastern Region | Carrington Hills
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					2,117,000
Initial Costs, Buildings and Improvements					0
Total Initial Acquisition Costs					2,117,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					33,846,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,462,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,501,000
Total Carrying Value					35,963,000
Accumulated Depreciation					20,064,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					35,963,000
Balance at end of the year					35,963,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,064,000
Balance at end of year					20,064,000
United Dominion Reality L.P. | Southeastern Region | Brookridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					708,000
Initial Costs, Buildings and Improvements					5,461,000
Total Initial Acquisition Costs					6,169,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,500,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,143,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					9,526,000
Total Carrying Value					10,669,000
Accumulated Depreciation					6,641,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					10,669,000
Balance at end of the year					10,669,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					6,641,000
Balance at end of year					6,641,000
United Dominion Reality L.P. | Southeastern Region | Breckenridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					766,000
Initial Costs, Buildings and Improvements					7,714,000
Total Initial Acquisition Costs					8,480,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,357,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					1,258,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					11,579,000
Total Carrying Value					12,837,000
Accumulated Depreciation					7,704,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					12,837,000
Balance at end of the year					12,837,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					7,704,000
Balance at end of year					7,704,000
United Dominion Reality L.P. | Southeastern Region | Polo Park
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					4,583,000
Initial Costs, Buildings and Improvements					16,293,000
Total Initial Acquisition Costs					20,876,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					16,042,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					5,643,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					31,275,000
Total Carrying Value					36,918,000
Accumulated Depreciation					20,471,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					36,918,000
Balance at end of the year					36,918,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,471,000
Balance at end of year					20,471,000
United Dominion Reality L.P. | Southeastern Region | NASHVILLE, TN
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,791,000
Initial Costs, Buildings and Improvements					46,919,000
Total Initial Acquisition Costs					57,710,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					77,142,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,407,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					118,445,000
Total Carrying Value					134,852,000
Accumulated Depreciation					79,192,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					134,852,000
Balance at end of the year					134,852,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					79,192,000
Balance at end of year					79,192,000
United Dominion Reality L.P. | Southeastern Region | The Reserve and Park at Riverbridge
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,179,000
Initial Costs, Land and Land Improvements					15,968,000
Initial Costs, Buildings and Improvements					56,401,000
Total Initial Acquisition Costs					72,369,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,947,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,536,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					64,780,000
Total Carrying Value					81,316,000
Accumulated Depreciation					38,317,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					81,316,000
Balance at end of the year					81,316,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					38,317,000
Balance at end of year					38,317,000
United Dominion Reality L.P. | Southeastern Region | OTHER FLORIDA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					39,179,000
Initial Costs, Land and Land Improvements					15,968,000
Initial Costs, Buildings and Improvements					56,401,000
Total Initial Acquisition Costs					72,369,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,947,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					16,536,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					64,780,000
Total Carrying Value					81,316,000
Accumulated Depreciation					38,317,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					81,316,000
Balance at end of the year					81,316,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					38,317,000
Balance at end of year					38,317,000
United Dominion Reality L.P. | Northeast Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					246,909,000
Initial Costs, Land and Land Improvements					130,808,000
Initial Costs, Buildings and Improvements					624,509,000
Total Initial Acquisition Costs					755,317,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					22,289,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					129,525,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					648,081,000
Total Carrying Value					777,606,000
Accumulated Depreciation					130,503,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					777,606,000
Balance at end of the year					777,606,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					130,503,000
Balance at end of year					130,503,000
United Dominion Reality L.P. | Northeast Region | Inwood West
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					56,447,000
Initial Costs, Land and Land Improvements					20,778,000
Initial Costs, Buildings and Improvements					88,096,000
Total Initial Acquisition Costs					108,874,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					3,034,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					19,309,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					92,599,000
Total Carrying Value					111,908,000
Accumulated Depreciation					20,102,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					111,908,000
Balance at end of the year					111,908,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,102,000
Balance at end of year					20,102,000
United Dominion Reality L.P. | Northeast Region | 14 North
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					10,961,000
Initial Costs, Buildings and Improvements					51,175,000
Total Initial Acquisition Costs					62,136,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					4,563,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					10,999,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					55,700,000
Total Carrying Value					66,699,000
Accumulated Depreciation					12,750,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					66,699,000
Balance at end of the year					66,699,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					12,750,000
Balance at end of year					12,750,000
United Dominion Reality L.P. | Northeast Region | BOSTON, MA
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					56,447,000
Initial Costs, Land and Land Improvements					31,739,000
Initial Costs, Buildings and Improvements					139,271,000
Total Initial Acquisition Costs					171,010,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,597,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					30,308,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					148,299,000
Total Carrying Value					178,607,000
Accumulated Depreciation					32,852,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					178,607,000
Balance at end of the year					178,607,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					32,852,000
Balance at end of year					32,852,000
United Dominion Reality L.P. | Northeast Region | 10 Hanover Square
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					190,462,000
Initial Costs, Land and Land Improvements					41,432,000
Initial Costs, Buildings and Improvements					218,983,000
Total Initial Acquisition Costs					260,415,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,396,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					41,481,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					227,330,000
Total Carrying Value					268,811,000
Accumulated Depreciation					42,678,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					268,811,000
Balance at end of the year					268,811,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					42,678,000
Balance at end of year					42,678,000
United Dominion Reality L.P. | Northeast Region | 95 Wall Street
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					57,637,000
Initial Costs, Buildings and Improvements					266,255,000
Total Initial Acquisition Costs					323,892,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					6,296,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					57,736,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					272,452,000
Total Carrying Value					330,188,000
Accumulated Depreciation					54,973,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					330,188,000
Balance at end of the year					330,188,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					54,973,000
Balance at end of year					54,973,000
United Dominion Reality L.P. | Northeast Region | NEW YORK, NY
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					190,462,000
Initial Costs, Land and Land Improvements					99,069,000
Initial Costs, Buildings and Improvements					485,238,000
Total Initial Acquisition Costs					584,307,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					14,692,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					99,217,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					499,782,000
Total Carrying Value					598,999,000
Accumulated Depreciation					97,651,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					598,999,000
Balance at end of the year					598,999,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					97,651,000
Balance at end of year					97,651,000
United Dominion Reality L.P. | Southwestern Region
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					102,438,000
Initial Costs, Land and Land Improvements					44,069,000
Initial Costs, Buildings and Improvements					147,322,000
Total Initial Acquisition Costs					191,391,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					37,605,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					46,398,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					182,598,000
Total Carrying Value					228,996,000
Accumulated Depreciation					86,244,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					228,996,000
Balance at end of the year					228,996,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					86,244,000
Balance at end of year					86,244,000
United Dominion Reality L.P. | Southwestern Region | THIRTY377
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					30,023,000
Initial Costs, Land and Land Improvements					24,036,000
Initial Costs, Buildings and Improvements					32,951,000
Total Initial Acquisition Costs					56,987,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					8,162,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					24,311,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					40,838,000
Total Carrying Value					65,149,000
Accumulated Depreciation					21,663,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					65,149,000
Balance at end of the year					65,149,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					21,663,000
Balance at end of year					21,663,000
United Dominion Reality L.P. | Southwestern Region | Legacy Village
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					72,415,000
Initial Costs, Land and Land Improvements					16,882,000
Initial Costs, Buildings and Improvements					100,102,000
Total Initial Acquisition Costs					116,984,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					7,325,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					17,280,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					107,029,000
Total Carrying Value					124,309,000
Accumulated Depreciation					44,321,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					124,309,000
Balance at end of the year					124,309,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					44,321,000
Balance at end of year					44,321,000
United Dominion Reality L.P. | Southwestern Region | DALLAS, TX
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					102,438,000
Initial Costs, Land and Land Improvements					40,918,000
Initial Costs, Buildings and Improvements					133,053,000
Total Initial Acquisition Costs					173,971,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					15,487,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					41,591,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					147,867,000
Total Carrying Value					189,458,000
Accumulated Depreciation					65,984,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					189,458,000
Balance at end of the year					189,458,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					65,984,000
Balance at end of year					65,984,000
United Dominion Reality L.P. | Southwestern Region | Barton Creek Landing
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,151,000
Initial Costs, Buildings and Improvements					14,269,000
Total Initial Acquisition Costs					17,420,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					22,118,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,807,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					34,731,000
Total Carrying Value					39,538,000
Accumulated Depreciation					20,260,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,538,000
Balance at end of the year					39,538,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,260,000
Balance at end of year					20,260,000
United Dominion Reality L.P. | Southwestern Region | AUSTIN, TX
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances					0
Initial Costs, Land and Land Improvements					3,151,000
Initial Costs, Buildings and Improvements					14,269,000
Total Initial Acquisition Costs					17,420,000
Costs of Improvements Capitalized Subsequent to Acquisition Costs					22,118,000
Gross Amount at Which Carried at Close of Period, Land and Land Improvements					4,807,000
Gross Amount at Which Carried at Close of Period, Buildings & Buildings Improvements					34,731,000
Total Carrying Value					39,538,000
Accumulated Depreciation					20,260,000
Real Estate Owned, Gross [Roll Forward]
Balance at beginning of the year					39,538,000
Balance at end of the year					39,538,000
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Balance at beginning of the year					20,260,000
Balance at end of year					20,260,000
Corporate Joint Venture [Member]
Real Estate Owned, Gross [Roll Forward]
Real estate acquired		0	129,437,000	0
Retirement of fully depreciated assets		(112,344,000)	(356,303,000)	0
Real Estate Owned, Accumulated Depreciation [Roll Forward]
Accumulated depreciation on retirements of fully depreciated asset		$ (4,228,000)	$ (20,662,000)	$ 0

[1] Includes unallocated accruals and capital expenditures.The aggregate cost for federal income tax purposes was approximately $7.7 billion at December 31, 2014. The estimated depreciable lives for all buildings in the latest Consolidated Statements of Operations are 35 to 55 years.

[2] Includes unallocated accruals and capital expenditures.The aggregate cost for federal income tax purpose was approximately $3.6 billion at December 31, 2011.