Real Estate Entities and Investments in Affiliates - Investments in Affiliates (Details) (USD $)	Jun. 30, 2011		Dec. 31, 2010		Jun. 30, 2010
Investments in and Advances to Affiliates [Line Items]
Investments in affiliates	$ 32,932,000		$ 31,410,000		$ 31,210,000
Minimum [Member] | Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Real Estate Development Projects Range of Total Assets	3,100,000
Maximum [Member] | Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Real Estate Development Projects Range of Total Assets	49,000,000
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | WASHINGTON | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	2		2		2
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | OREGON | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	1		1		1
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | CALIFORNIA | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	8	[1]	6	[1]	7	[1]
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | TEXAS | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	1		1		1
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | Commercial real estate [Member] | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	7	[1]	5	[1]	5	[1]
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | Residential real estate [Member] | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	5		5		6
Joint Venture Consolidated [Member] | Real Estate Segment [Member] | Real Estate Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Number of projects	12		10		11
Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | TEXAS | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Equity Method investments in Real Estate Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	15,865,000		12,128,000		13,798,000
Number of projects	5		5		5
Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | Commercial real estate [Member] | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Equity Method investments in Real Estate Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	4,474,000		3,099,000		4,904,000
Number of projects	3		3		3
Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | Residential real estate [Member] | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Equity Method investments in Real Estate Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	11,391,000		9,029,000		8,894,000
Number of projects	2		2		2
Joint Venture Unconsolidated [Member] | Real Estate Segment [Member] | Real Estate Entities [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Equity Method investments in Real Estate Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	15,865,000	[2]	12,128,000	[2]	13,798,000	[2]
Number of projects	5		5		5
Joint Venture Unconsolidated [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Summarized Financial Information, Assets	152,358,000		156,868,000		163,720,000
Equity Method Investments Summarized Financial Information Net Assets	79,666,000		84,368,000		87,027,000
Cost Method Investments	6,450,000		6,400,000		6,400,000
Investments in affiliates	32,932,000		31,410,000		31,210,000
Joint Venture Unconsolidated [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Limited Liability Company [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	1,500,000
Joint Venture Unconsolidated [Member] | Other Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	26,482,000		25,010,000		24,810,000
Joint Venture Unconsolidated [Member] | Equity Method Investments in Non Real Estate Affiliate [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investments	$ 10,617,000	[2]	$ 12,882,000	[2]	$ 11,012,000	[2]

[1]  1The increase in the number of projects from December 31, 2010 to June 30, 2011 is due to the reclassification of two projects from property and equipment to real estate held for development and sale. The reclassifications were due to a change in business plans for the projects in connection with our Enterprise Improvement Plan.

[2] 1A reclassification of an investment between these categories has been made to the June 30, 2010 amounts to conform to current year presentation. This reclassification did not have a significant impact on our previously reported footnote disclosur