Real Estate Entities and Investments in Affiliates - Consolidated Real Estate Entities (Details) (USD $)				3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Mar. 31, 2012 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member] project	Mar. 31, 2011 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member] project	Mar. 31, 2012 Real Estate Segment [Member] Subsidiaries [Member]	Mar. 31, 2011 Real Estate Segment [Member] Subsidiaries [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] Commercial real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Commercial real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Commercial real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] OREGON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] OREGON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] OREGON Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] CALIFORNIA Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] CALIFORNIA Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] CALIFORNIA Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2012 Real Estate Segment [Member] Joint Venture Consolidated [Member] TEXAS Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] TEXAS Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2011 Real Estate Segment [Member] Joint Venture Consolidated [Member] TEXAS Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Increase in Financial Support Authorization				$ 0	$ 12,000,000
Authorized Investment Yet to be Contributed				3,300,000
Impairment charges related to Enterprise Improvement Plan						0	0
Number of Projects with Authorization for Increase in Financial or Other Support				0	3
Real estate held for development and sale	58,363,000	67,037,000	77,128,000					58,363,000	67,037,000	77,128,000	10,933,000	12,427,000	21,156,000	47,430,000	54,610,000	55,972,000	46,992,000	47,600,000	45,586,000	0	6,572,000	8,328,000	2,512,000	4,006,000	14,355,000	8,859,000	8,859,000	8,859,000
Number of projects								7	9	11	4	5	6	3	4	5	2	2	2	0	1	1	4	5	7	1	1	1
Other current assets	34,882,000	35,171,000	44,059,000					2,063,000	4,715,000	3,521,000
Total current assets	846,888,000	909,722,000	837,037,000					60,426,000	71,752,000	80,649,000
Property and equipment, net	442,132,000	447,140,000	468,929,000					0	0	3,283,000
Other noncurrent assets	79,849,000	80,616,000	83,478,000					0	0	1,043,000
Total assets								60,426,000	71,752,000	84,975,000
Current maturities of non-recourse debt	19,765,000	23,071,000	17,740,000					19,765,000	22,571,000	17,240,000
Other Liabilities, Current								607,000	1,794,000	2,171,000
Total current liabilities	393,913,000	448,468,000	378,710,000					20,372,000	24,365,000	19,411,000
Long-term non-recourse debt	1,371,000	9,912,000	30,454,000					1,371,000	9,912,000	30,454,000
Other long-term liabilities	50,011,000	49,221,000	47,943,000					0	74,000	309,000
Total liabilities								$ 21,743,000	$ 34,351,000	$ 50,174,000