Investments in Partially Owned Entities (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 08, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Partially Owned Property Balance Sheet Schedule
Partially Owned Consolidated Properties		19		19
Partially Owned Unconsolidated Properties		2		2
Partially Owned Consolidated Units		3,752		3,752
Partially Owned Unconsolidated Units		837		837
ASSETS
Real Estate Investment Property, at Cost		$ 26,740,837,000		$ 26,740,837,000		$ 21,008,429,000
Real Estate Investment Property, Accumulated Depreciation		(4,654,594,000)		(4,654,594,000)		(4,912,221,000)
Investment in real estate, net		22,086,243,000		22,086,243,000		16,096,208,000
Cash and Cash Equivalents, at Carrying Value		972,761,000	45,623,000	972,761,000	45,623,000	612,590,000	383,921,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		165,898,000		165,898,000		17,877,000
Restricted Cash and Cash Equivalents		98,874,000		98,874,000		250,442,000
Deferred Finance Costs, Net		66,775,000		66,775,000		44,382,000
Other Assets		379,979,000		379,979,000		170,372,000
Total assets		23,811,431,000		23,811,431,000		17,201,000,000
LIABILITIES AND EQUITY
Secured Debt		6,230,675,000		6,230,675,000		3,898,369,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		166,939,000		166,939,000		38,372,000
Interest Payable		85,353,000		85,353,000		76,223,000
Other Liabilities		331,797,000		331,797,000		304,518,000
Security Deposit Liability		71,462,000		71,462,000		66,988,000
Total liabilities		12,512,584,000		12,512,584,000		9,275,521,000
Noncontrolling Interests Partially Owned Properties		110,635,000		110,635,000		77,688,000
Total liabilities and equity		23,811,431,000		23,811,431,000		17,201,000,000
Partially Owned Property Income Statement Schedule
Operating revenue		629,446,000	451,699,000	1,756,773,000	1,302,759,000
Depreciation		277,336,000	139,337,000	798,121,000	422,148,000
General and Administrative Expense		14,438,000	10,083,000	47,018,000	37,162,000
Operating Income		121,394,000	142,932,000	291,521,000	368,443,000
Interest and Other Income		816,000	70,087,000	1,320,000	70,514,000
Interest:
Interest Expense, Debt		120,035,000	113,222,000	437,452,000	345,476,000
Amortization of Financing Costs		4,335,000	3,320,000	15,636,000	10,265,000
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations		(6,328,000)	92,406,000	(187,518,000)	62,708,000
Income and other tax (expense) benefit		(493,000)	(222,000)	(1,326,000)	(602,000)
(Loss) from investments in unconsolidated entities due to operations		(1,454,000)	(3,000)	(2,984,000)	(3,000)
Net gain (loss) on sales of land parcels		(2,437,000)	0	12,179,000	0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		401,703,000	103,394,000	1,990,577,000	307,447,000
Net income		391,717,000	236,323,000	1,789,483,000	496,805,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Joint Venture Partner Ownership Percentage		80.00%		80.00%
Equity Method Investment, Ownership Percentage		20.00%		20.00%
Variable Interest Entity, Consolidated, Carrying Amount, Assets		5,000,000		5,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.88%
Debt Instrument, Maturity Date	Nov. 01, 2014			Sep. 01, 2014
Preferred Interests				65,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		108,000,000		108,000,000
Investment in Joint Venture		259,138,385		259,138,385
Number of Joint Ventures		2		2
Partners Payments To Acquire Equity Method Investments				40,100,000
Consolidated Development Projects Held for and or Under Development [Member]
Partially Owned Property Balance Sheet Schedule
Partially Owned Consolidated Properties		0		0
Partially Owned Consolidated Units		0		0
ASSETS
Real Estate Investment Property, at Cost		308,893,000		308,893,000
Real Estate Investment Property, Accumulated Depreciation		0		0
Investment in real estate, net		308,893,000		308,893,000
Cash and Cash Equivalents, at Carrying Value		4,253,000		4,253,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0		0
Restricted Cash and Cash Equivalents		43,631,000		43,631,000
Deferred Finance Costs, Net		0		0
Other Assets		5,781,000		5,781,000
Total assets		362,558,000		362,558,000
LIABILITIES AND EQUITY
Secured Debt		0		0
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		27,052,000		27,052,000
Interest Payable		0		0
Other Liabilities		1,045,000		1,045,000
Security Deposit Liability		1,000		1,000
Total liabilities		28,098,000		28,098,000
Noncontrolling Interests Partially Owned Properties		98,126,000		98,126,000
Parent Equity Interest		236,334,000		236,334,000
Total Equity Interest		334,460,000		334,460,000
Total liabilities and equity		362,558,000		362,558,000
Partially Owned Property Income Statement Schedule
Operating revenue				12,000
Operating Expenses				407,000
Gross Profit				(395,000)
Depreciation				0
General and Administrative Expense				520,000
Operating Income				(915,000)
Interest and Other Income				2,000
Other Nonoperating Income (Expense)				(334,000)
Interest:
Interest Expense, Debt				(2,000)
Amortization of Financing Costs				0
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				(1,249,000)
Income and other tax (expense) benefit				(11,000)
(Loss) from investments in unconsolidated entities due to operations				0
Net gain (loss) on sales of land parcels				(17,000)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				0
Net income				(1,277,000)
Consolidated Operating [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Consolidated Properties		19		19
Partially Owned Consolidated Units		3,752		3,752
ASSETS
Real Estate Investment Property, at Cost		672,958,000		672,958,000
Real Estate Investment Property, Accumulated Depreciation		(167,457,000)		(167,457,000)
Investment in real estate, net		505,501,000		505,501,000
Cash and Cash Equivalents, at Carrying Value		17,659,000		17,659,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		55,040,000		55,040,000
Restricted Cash and Cash Equivalents		206,000		206,000
Deferred Finance Costs, Net		2,521,000		2,521,000
Other Assets		27,170,000		27,170,000
Total assets		608,097,000		608,097,000
LIABILITIES AND EQUITY
Secured Debt		358,730,000		358,730,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		2,495,000		2,495,000
Interest Payable		1,259,000		1,259,000
Other Liabilities		1,254,000		1,254,000
Security Deposit Liability		1,821,000		1,821,000
Total liabilities		365,559,000		365,559,000
Noncontrolling Interests Partially Owned Properties		12,509,000		12,509,000
Parent Equity Interest		230,029,000		230,029,000
Total Equity Interest		242,538,000		242,538,000
Total liabilities and equity		608,097,000		608,097,000
Partially Owned Property Income Statement Schedule
Operating revenue				59,666,000
Operating Expenses				18,458,000
Gross Profit				41,208,000
Depreciation				26,478,000
General and Administrative Expense				79,000
Operating Income				14,651,000
Interest and Other Income				3,000
Other Nonoperating Income (Expense)				(4,000)
Interest:
Interest Expense, Debt				(10,615,000)
Amortization of Financing Costs				(216,000)
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				3,819,000
Income and other tax (expense) benefit				(56,000)
(Loss) from investments in unconsolidated entities due to operations				(1,010,000)
Net gain (loss) on sales of land parcels				0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				26,673,000
Net income				29,426,000
Consolidated Total [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Consolidated Properties		19		19
Partially Owned Consolidated Units		3,752		3,752
ASSETS
Real Estate Investment Property, at Cost		981,851,000		981,851,000
Real Estate Investment Property, Accumulated Depreciation		(167,457,000)		(167,457,000)
Investment in real estate, net		814,394,000		814,394,000
Cash and Cash Equivalents, at Carrying Value		21,912,000		21,912,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		55,040,000		55,040,000
Restricted Cash and Cash Equivalents		43,837,000		43,837,000
Deferred Finance Costs, Net		2,521,000		2,521,000
Other Assets		32,951,000		32,951,000
Total assets		970,655,000		970,655,000
LIABILITIES AND EQUITY
Secured Debt		358,730,000		358,730,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		29,547,000		29,547,000
Interest Payable		1,259,000		1,259,000
Other Liabilities		2,299,000		2,299,000
Security Deposit Liability		1,822,000		1,822,000
Total liabilities		393,657,000		393,657,000
Noncontrolling Interests Partially Owned Properties		110,635,000		110,635,000
Parent Equity Interest		466,363,000		466,363,000
Total Equity Interest		576,998,000		576,998,000
Total liabilities and equity		970,655,000		970,655,000
Partially Owned Property Income Statement Schedule
Operating revenue				59,678,000
Operating Expenses				18,865,000
Gross Profit				40,813,000
Depreciation				26,478,000
General and Administrative Expense				599,000
Operating Income				13,736,000
Interest and Other Income				5,000
Other Nonoperating Income (Expense)				(338,000)
Interest:
Interest Expense, Debt				(10,617,000)
Amortization of Financing Costs				(216,000)
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				2,570,000
Income and other tax (expense) benefit				(67,000)
(Loss) from investments in unconsolidated entities due to operations				(1,010,000)
Net gain (loss) on sales of land parcels				(17,000)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				26,673,000
Net income				28,149,000
Unconsolidated Development Projects Held for and or Under Development [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Unconsolidated Properties		0		0
Partially Owned Unconsolidated Units		0		0
ASSETS
Real Estate Investment Property, at Cost		238,872,000		238,872,000
Real Estate Investment Property, Accumulated Depreciation		(84,000)		(84,000)
Investment in real estate, net		238,788,000		238,788,000
Cash and Cash Equivalents, at Carrying Value		1,153,000		1,153,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0		0
Restricted Cash and Cash Equivalents		0		0
Deferred Finance Costs, Net		0		0
Other Assets		333,000		333,000
Total assets		240,274,000		240,274,000
LIABILITIES AND EQUITY
Secured Debt		118,723,000		118,723,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		13,781,000		13,781,000
Interest Payable		432,000		432,000
Other Liabilities		365,000		365,000
Security Deposit Liability		94,000		94,000
Total liabilities		133,395,000		133,395,000
Noncontrolling Interests Partially Owned Properties		78,556,000		78,556,000
Parent Equity Interest		28,323,000		28,323,000
Total Equity Interest		106,879,000		106,879,000
Total liabilities and equity		240,274,000		240,274,000
Partially Owned Property Income Statement Schedule
Operating revenue				1,305,000
Operating Expenses				1,141,000
Gross Profit				164,000
Depreciation				84,000
General and Administrative Expense				23,000
Operating Income				57,000
Interest and Other Income				0
Other Nonoperating Income (Expense)				0
Interest:
Interest Expense, Debt				(152,000)
Amortization of Financing Costs				0
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				(95,000)
Income and other tax (expense) benefit				0
(Loss) from investments in unconsolidated entities due to operations				0
Net gain (loss) on sales of land parcels				0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				0
Net income				(95,000)
Unconsolidated Completed, Not Stabilized [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Unconsolidated Properties		1		1
Partially Owned Unconsolidated Units		501		501
ASSETS
Real Estate Investment Property, at Cost		77,292,000		77,292,000
Real Estate Investment Property, Accumulated Depreciation		0		0
Investment in real estate, net		77,292,000		77,292,000
Cash and Cash Equivalents, at Carrying Value		317,000		317,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0		0
Restricted Cash and Cash Equivalents		0		0
Deferred Finance Costs, Net		5,000		5,000
Other Assets		5,000		5,000
Total assets		77,619,000		77,619,000
LIABILITIES AND EQUITY
Secured Debt		45,217,000		45,217,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		2,864,000		2,864,000
Interest Payable		208,000		208,000
Other Liabilities		156,000		156,000
Security Deposit Liability		75,000		75,000
Total liabilities		48,520,000		48,520,000
Noncontrolling Interests Partially Owned Properties		23,205,000		23,205,000
Parent Equity Interest		5,894,000		5,894,000
Total Equity Interest		29,099,000		29,099,000
Total liabilities and equity		77,619,000		77,619,000
Partially Owned Property Income Statement Schedule
Operating revenue				1,861,000
Operating Expenses				1,023,000
Gross Profit				838,000
Depreciation				0
General and Administrative Expense				0
Operating Income				838,000
Interest and Other Income				0
Other Nonoperating Income (Expense)				0
Interest:
Interest Expense, Debt				(501,000)
Amortization of Financing Costs				0
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				337,000
Income and other tax (expense) benefit				0
(Loss) from investments in unconsolidated entities due to operations				0
Net gain (loss) on sales of land parcels				0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				0
Net income				337,000
Unconsolidated Operating [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Unconsolidated Properties		1		1
Partially Owned Unconsolidated Units		336		336
ASSETS
Real Estate Investment Property, at Cost		55,369,000		55,369,000
Real Estate Investment Property, Accumulated Depreciation		(4,165,000)		(4,165,000)
Investment in real estate, net		51,204,000		51,204,000
Cash and Cash Equivalents, at Carrying Value		1,357,000		1,357,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0		0
Restricted Cash and Cash Equivalents		0		0
Deferred Finance Costs, Net		5,000		5,000
Other Assets		1,038,000		1,038,000
Total assets		53,604,000		53,604,000
LIABILITIES AND EQUITY
Secured Debt		30,550,000		30,550,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		(143,000)		(143,000)
Interest Payable		0		0
Other Liabilities		1,345,000		1,345,000
Security Deposit Liability		18,000		18,000
Total liabilities		31,770,000		31,770,000
Noncontrolling Interests Partially Owned Properties		20,450,000		20,450,000
Parent Equity Interest		1,384,000		1,384,000
Total Equity Interest		21,834,000		21,834,000
Total liabilities and equity		53,604,000		53,604,000
Partially Owned Property Income Statement Schedule
Operating revenue				3,173,000
Operating Expenses				1,402,000
Gross Profit				1,771,000
Depreciation				4,165,000
General and Administrative Expense				141,000
Operating Income				(2,535,000)
Interest and Other Income				10,000
Other Nonoperating Income (Expense)				0
Interest:
Interest Expense, Debt				(658,000)
Amortization of Financing Costs				(1,000)
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				(3,184,000)
Income and other tax (expense) benefit				0
(Loss) from investments in unconsolidated entities due to operations				0
Net gain (loss) on sales of land parcels				0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				0
Net income				(3,184,000)
Unconsolidated Total [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Unconsolidated Properties		2		2
Partially Owned Unconsolidated Units		837		837
ASSETS
Real Estate Investment Property, at Cost		371,533,000		371,533,000
Real Estate Investment Property, Accumulated Depreciation		(4,249,000)		(4,249,000)
Investment in real estate, net		367,284,000		367,284,000
Cash and Cash Equivalents, at Carrying Value		2,827,000		2,827,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0		0
Restricted Cash and Cash Equivalents		0		0
Deferred Finance Costs, Net		10,000		10,000
Other Assets		1,376,000		1,376,000
Total assets		371,497,000		371,497,000
LIABILITIES AND EQUITY
Secured Debt		194,490,000		194,490,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable		16,502,000		16,502,000
Interest Payable		640,000		640,000
Other Liabilities		1,866,000		1,866,000
Security Deposit Liability		187,000		187,000
Total liabilities		213,685,000		213,685,000
Noncontrolling Interests Partially Owned Properties		122,211,000		122,211,000
Parent Equity Interest		35,601,000		35,601,000
Total Equity Interest		157,812,000		157,812,000
Total liabilities and equity		371,497,000		371,497,000
Partially Owned Property Income Statement Schedule
Operating revenue				6,339,000
Operating Expenses				3,566,000
Gross Profit				2,773,000
Depreciation				4,249,000
General and Administrative Expense				164,000
Operating Income				(1,640,000)
Interest and Other Income				10,000
Other Nonoperating Income (Expense)				0
Interest:
Interest Expense, Debt				(1,311,000)
Amortization of Financing Costs				(1,000)
(Loss) income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations				(2,942,000)
Income and other tax (expense) benefit				0
(Loss) from investments in unconsolidated entities due to operations				0
Net gain (loss) on sales of land parcels				0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				0
Net income				(2,942,000)
Residual JV [Domain]
ASSETS
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		105,100,000		105,100,000
Joint Venture Partner [Member]
LIABILITIES AND EQUITY
Noncontrolling Interests Partially Owned Properties		95,528,824		95,528,824
Investments In Partially Owned Entities (Textuals) [Abstract]
Land purchase price		57,900,000		57,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		75,700,000		75,700,000
Company's Portion [Member]
Investments In Partially Owned Entities (Textuals) [Abstract]
Land purchase price		76,100,000		76,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		102,500,000		102,500,000
Nexus Sawgrass [Member]
LIABILITIES AND EQUITY
Secured Debt		45,200,000		45,200,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Project Cost		78,200,000		78,200,000
Maximum Debt Commitment		48,700,000		48,700,000
Debt Instrument, Interest Rate, Stated Percentage		5.60%		5.60%
Debt Instrument, Maturity Date				Jan. 01, 2021
Domain [Member]
LIABILITIES AND EQUITY
Secured Debt		82,200,000		82,200,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Project Cost		154,600,000		154,600,000
Maximum Debt Commitment		98,600,000		98,600,000
Debt Instrument, Interest Rate, Stated Percentage		5.75%		5.75%
Debt Instrument, Maturity Date				Jan. 01, 2022
Archstone Transaction [Member]
Investments In Partially Owned Entities (Textuals) [Abstract]
Liquidation Value Preferred Interests		88,300,000		88,300,000
Business Acquisition, Percentage of Voting Interests Acquired		60.00%		60.00%
Joint Venture Partner Ownership Percentage		40.00%		40.00%
Company's Portion [Member]
Investments In Partially Owned Entities (Textuals) [Abstract]
Preferred Interests				39,000,000
Enclave at Wellington [Domain]
Investments In Partially Owned Entities (Textuals) [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired		95.00%		95.00%
Partially Owned Consolidated Properties		268		268
Initial Basis of Land, Consolidated		26,200,000		26,200,000
Project Cost		50,000,000		50,000,000
East Palmetto Park [Domain]
Investments In Partially Owned Entities (Textuals) [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired		90.00%		90.00%
Partially Owned Consolidated Properties		377		377
Initial Basis of Land, Consolidated		20,200,000		20,200,000
Wisconsin Place [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Consolidated Units		432		432
ASSETS
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		56,500,000		56,500,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired		75.00%		75.00%
Initial Basis of Land, Consolidated		198,500,000		198,500,000
San Norterra [Domain]
Variable Interest Entity [Line Items]
Debt Instrument, Description of Variable Rate Basis				LIBOR plus 2.00%
LIABILITIES AND EQUITY
Secured Debt		30,800,000		30,800,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Equity Method Investment, Ownership Percentage		85.00%		85.00%
Project Cost		56,300,000		56,300,000
Partially Owned Unconsolidated Units To Be Developed		388		388
Initial Basis of Land, Unconsolidated		(16,900,000)		(16,900,000)
Maximum Debt Commitment		34,800,000		34,800,000
Debt Instrument, Maturity Date				Jan. 06, 2015
Waterton Tenside [Domain]
Partially Owned Property Balance Sheet Schedule
Partially Owned Unconsolidated Units		336		336
LIABILITIES AND EQUITY
Secured Debt		30,600,000		30,600,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Equity Method Investment, Ownership Percentage		20.00%		20.00%
Initial Basis of Land, Unconsolidated		(5,100,000)		(5,100,000)
Debt Instrument, Interest Rate, Stated Percentage		3.66%		3.66%
Debt Instrument, Maturity Date				Dec. 01, 2018
Parkside at Emeryville [Domain]
Variable Interest Entity [Line Items]
Debt Instrument, Description of Variable Rate Basis				LIBOR plus 2.25%
LIABILITIES AND EQUITY
Secured Debt		5,700,000		5,700,000
Investments In Partially Owned Entities (Textuals) [Abstract]
Equity Method Investment, Ownership Percentage		5.00%		5.00%
Project Cost		75,000,000		75,000,000
Partially Owned Unconsolidated Units To Be Developed		180		180
Initial Basis of Land, Unconsolidated		2,100,000		2,100,000
Maximum Debt Commitment		39,500,000		39,500,000
Debt Instrument, Maturity Date				Aug. 14, 2015
Unconsolidated Project Under Development Commitment Fund		$ 19,700,000		$ 19,700,000
London Interbank Offered Rate (LIBOR) [Member]
Variable Interest Entity [Line Items]
Debt Instrument, Description of Variable Rate Basis				LIBOR plus 1.75%
LIABILITIES AND EQUITY
Debt Instrument, Basis Spread on Variable Rate				1.75%
London Interbank Offered Rate (LIBOR) [Member] | San Norterra [Domain]
LIABILITIES AND EQUITY
Debt Instrument, Basis Spread on Variable Rate				2.00%
London Interbank Offered Rate (LIBOR) [Member] | Parkside at Emeryville [Domain]
LIABILITIES AND EQUITY
Debt Instrument, Basis Spread on Variable Rate				2.25%