Quarterly report pursuant to Section 13 or 15(d)

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

v2.3.0.15
Investments In Unconsolidated Joint Ventures (Gale Kimball, L.L.C.) (Details) (Gale Kimball [Member], USD $)
0 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 15, 2006
sqft
Sep. 30, 2010
Sep. 30, 2010
Dec. 31, 2010
Gale Kimball [Member]
       
Percentage of interest in venture 8.33%      
Date of acquisition June 15,2006      
Area of office property 175,000      
Venture sale of real estate       $ 60,000,000
Management, leasing and other services fees   71,000 213,300  
Share of gain on sale of real estate       1,600,000
Venture gain (loss) on sale of real estate       19,800,000
Distribution received       5,400,000
Payment of participation rights       $ 2,400,000