Real Estate Entities and Investments in Affiliates - Consolidated Real Estate Entities (Details) (USD $)							3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Mar. 31, 2014 Joint Venture Unconsolidated [Member]	Dec. 31, 2013 Joint Venture Unconsolidated [Member]	Mar. 31, 2013 Joint Venture Unconsolidated [Member]	Mar. 31, 2013 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2014 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 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]	Mar. 31, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 31, 2014 Real Estate Segment [Member] Joint Venture Consolidated [Member] WASHINGTON Residential real estate [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Mar. 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]
Variable Interest Entity [Line Items]
Equity Method Investment, Summarized Financial Information, Assets				$ 172,763,000	$ 173,988,000	$ 160,133,000
Increase in Financial Support Authorization							5,900,000
Authorized Investment Yet to be Contributed								2,200,000
Real estate held for development and sale	11,742,000	12,478,000	50,303,000						11,700,000	12,500,000	50,300,000	11,600,000	40,400,000
Other current assets	40,142,000	30,711,000	37,401,000
Total current assets	898,725,000	950,203,000	976,220,000
Property and equipment, net	432,398,000	436,859,000	477,666,000
Current maturities of non-recourse debt	1,226,000	1,226,000	4,132,000
Total current liabilities	461,413,000	497,570,000	495,719,000
Long-term non-recourse debt	6,435,000	6,741,000	7,628,000
Other long-term liabilities	48,662,000	48,580,000	49,231,000
Non-Recourse Debt									$ 7,700,000	$ 8,000,000	$ 11,800,000