Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 4)

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Fair Value Measurements (Details 4) (USD $)
6 Months Ended
Jun. 30, 2012
Discounted cash flow
 
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements  
Discount rate 11.00% [1]
Terminal captitalization rate 9.00% [1]
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]
[1] Only one value applied to this unobservable input.