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Real Estate Entities and Investments in Affiliates - Investments in Affiliates (Details) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Investments in and Advances to Affiliates [Line Items]   
Investments in affiliates$ 33,435,000$ 31,410,000$ 32,515,000
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 Assets3,100,000  
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 Assets48,400,000  
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 projects222
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 projects111
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 projects8[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 projects111
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 projects7[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 projects556
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 projects121011
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 Investments15,856,00012,128,00014,290,000
Number of projects555
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 Investments4,345,0003,099,0005,397,000
Number of projects333
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 Investments11,511,0009,029,0008,893,000
Number of projects222
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 Investments15,856,00012,128,00014,290,000
Number of projects555
Joint Venture Unconsolidated [Member]
   
Investments in and Advances to Affiliates [Line Items]   
Equity Method Investment, Summarized Financial Information, Assets157,054,000156,868,000165,653,000
Equity Method Investments Summarized Financial Information Net Assets80,306,00084,368,00088,530,000
Cost Method Investments6,450,0006,400,0006,400,000
Investments in affiliates33,435,00031,410,00032,515,000
Joint Venture Unconsolidated [Member] | Other Affiliates [Member]
   
Investments in and Advances to Affiliates [Line Items]   
Equity Method Investments26,985,00025,010,00026,115,000
Joint Venture Unconsolidated [Member] | Equity Method Investments in Non Real Estate Affiliate [Member]
   
Investments in and Advances to Affiliates [Line Items]   
Equity Method Investments$ 11,129,000$ 12,882,000$ 11,825,000
[1]The increase in the number of projects from December 31, 2010 to September 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.