Real Estate Entities and Investments in Affiliates - Consolidated Real Estate Entities (Details) (USD $)							3 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014 Joint Venture Unconsolidated [Member]	Dec. 31, 2013 Joint Venture Unconsolidated [Member]	Sep. 30, 2013 Joint Venture Unconsolidated [Member]	Sep. 30, 2014 Real Estate Segment [Member] Subsidiaries [Member]	Sep. 30, 2013 Real Estate Segment [Member] Subsidiaries [Member]	Sep. 30, 2014 Real Estate Segment [Member] Subsidiaries [Member]	Sep. 30, 2013 Real Estate Segment [Member] Subsidiaries [Member]	Sep. 30, 2014 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Sep. 30, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Sep. 30, 2014 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Dec. 31, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Sep. 30, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Other Asset Impairment Charges							$ 0	$ 0	$ 0	$ 0
Equity Method Investment, Summarized Financial Information, Assets				172,220,000	173,988,000	166,601,000
Real estate held for development and sale	11,773,000	12,478,000	50,250,000								11,800,000	12,500,000	50,300,000	11,600,000	11,600,000	40,800,000
Other current assets	21,743,000	30,711,000	32,836,000
Total current assets	1,020,829,000	950,203,000	1,041,304,000
Property and equipment, net	424,272,000	436,859,000	458,024,000
Current maturities of non-recourse debt	1,226,000	1,226,000	2,147,000
Total current liabilities	544,167,000	497,570,000	565,961,000
Long-term non-recourse debt	5,822,000	6,741,000	7,048,000
Other long-term liabilities	45,887,000	48,580,000	46,474,000
Non-Recourse Debt											$ 7,000,000	$ 8,000,000	$ 9,200,000