Real Estate Entities and Investments in Affiliates - Consolidated Real Estate Entities (Details) (USD $)							6 Months Ended		3 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2014 Joint Venture Unconsolidated [Member]	Dec. 31, 2013 Joint Venture Unconsolidated [Member]	Jun. 30, 2013 Joint Venture Unconsolidated [Member]	Jun. 30, 2013 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2014 Real Estate Segment [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2014 Real Estate Segment [Member] Subsidiaries [Member]	Jun. 30, 2013 Real Estate Segment [Member] Subsidiaries [Member]	Jun. 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]	Jun. 30, 2013 Real Estate Segment [Member] Joint Venture Consolidated [Member] Real Estate Entities [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 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]	Jun. 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
Equity Method Investment, Summarized Financial Information, Assets				171,991,000	173,988,000	160,422,000
Increase in Financial Support Authorization							5,900,000
Authorized Investment Yet to be Contributed								1,900,000
Real estate held for development and sale	11,761,000	12,478,000	50,696,000								11,800,000	12,500,000	50,700,000	11,600,000	11,600,000	40,700,000
Other current assets	30,727,000	30,711,000	36,203,000
Total current assets	977,920,000	950,203,000	1,009,166,000
Property and equipment, net	426,700,000	436,859,000	470,893,000
Current maturities of non-recourse debt	1,226,000	1,226,000	2,147,000
Total current liabilities	525,329,000	497,570,000	535,511,000
Long-term non-recourse debt	6,129,000	6,741,000	7,354,000
Other long-term liabilities	48,455,000	48,580,000	46,817,000
Non-Recourse Debt											$ 7,400,000	$ 8,000,000	$ 9,500,000