Annual report pursuant to Section 13 and 15(d)

Investments In Unconsolidated Joint Ventures (Gale Jefferson, L.L.C.) (Narrative) (Details)

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Investments In Unconsolidated Joint Ventures (Gale Jefferson, L.L.C.) (Narrative) (Details) (USD $)
 0 Months Ended 12 Months Ended
Jan. 04, 2013
Dec. 31, 2013
sqft
Dec. 31, 2012
Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]        
Gain on sale of property   $ 83,371,000 [1] $ 87,000 [2]  
One Jefferson [Member]
        
Schedule of Equity Method Investments [Line Items]        
Percentage of interest in venture   8.33%    
Mortgage loans, carrying amount   20,200,000    
Spread over LIBOR   1.60%    
Mortgage loan, maturity date   October 2013    
Gale Jefferson, L.L.C. [Member]
        
Schedule of Equity Method Investments [Line Items]        
Rentable Square Feet   100,010    
Lease expiration date   Aug. 01, 2025    
Venture sale of real estate 3,200,000      
Share of gain on sale of real estate 1,100,000      
Management, leasing and other services fees   $ 0 $ 193,000 $ 154,000
[1] This amount, net of impairment charges recorded in 2013 of $23,851,000 on certain of the properties prior to their sale (per Note [d] above), comprises the $59,520,000 of realized gains (losses) and unrealized losses on disposition of rental property and impairments, net, for the year ended December 31, 2013.  See Note 7: Discontinued Operations.
[2] Also included in realized gains(loss) for the year ended December 31, 2012, was a $4.5 million gain recorded on the disposal of the office property located at 2200 Renaissance Boulevard. This office property, aggregating 174,124 square feet, was collateral for a $16.2 million mortgage loan scheduled to mature on December 1, 2012. The Company previously recorded an impairment charge on the property of $9.5 million at December 31, 2010. On March 28, 2012, the Company transferred the deed for 2200 Renaissance Boulevard to the lender in satisfaction of its obligations, which resulted in recording the gain.