Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 3)

v2.4.0.8
Fair Value Measurements (Details 3) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Discounted Cash Flow Valuation Technique [Member]
Jun. 30, 2012
Yield Analysis Valuation Technique [Member]
Jun. 30, 2013
Fair value measurement on a nonrecurring basis
Significant Unobservable Inputs (Level 3)
Properties,net
Jun. 30, 2012
Fair value measurement on a nonrecurring basis
Significant Unobservable Inputs (Level 3)
Properties,net
Quantitative information for significant unobservable inputs used for Level 3 fair value measurements        
Fair value on measurement date     $ 113,144 [1],[2] $ 202,250 [1]
Discount rate 11.00% [3]      
Terminal capitalization rate 9.00% [3]      
Market rent growth rate 3.00% [3]      
Expense growth rate 3.00% [3]      
Yield   12.00% [3]    
Market rent rate (in dollars per square foot)   8.50 [3]    
Leasing costs (in dollars per square foot)   20.00 [3]    
[1] Reflects balance sheet classifications of assets at time of fair value measurement, excluding the effect of held for sale classifications.
[2] This fair value measurement was developed by a third party source, subject to our corroboration for reasonableness.
[3] Only one value applied for this unobservable input.