Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 4)

v2.4.0.6
Fair Value Measurements (Details 4) (USD $)
 9 Months Ended
Sep. 30, 2012
Discounted cash flow
  
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Market rent growth rate 3.00% [1]
Expense growth rate 3.00% [1]
Yield Analysis
  
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Yield 12.00% [1]
Market rent rate (in dollars per square foot) 8.50 [1]
Leasing costs per square foot 20.00 [1]
Maximum | Discounted cash flow
  
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Discount rate 11.00%
Terminal captitalization rate 10.00%
Weighted Average | Discounted cash flow
  
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Discount rate 10.40%
Terminal captitalization rate 8.90%
Minimum | Discounted cash flow
  
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Discount rate 10.10%
Terminal captitalization rate 8.70%
[1] Only one value applied to this unobservable input.