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Impairment of Real Estate, Impairment of Unconsolidated Entities and Write-Off of Abandoned Development Projects (Tables)
 3 Months Ended
Apr. 30, 2012
Impairment of Real Estate Impairment of Unconsolidated Entities and Write Off of Abandoned Development Projects [Abstract]  
Unobservable inputs used to determine the fair value of the non-recurring impairment of real estate

The following table presents quantitative information about the significant unobservable inputs used to determine the fair value of the non-recurring impairment of real estate for the three months ended April 30, 2012:

 

                     
    Quantitative Information about Level 3 Fair Value  Measurements
    Fair Value
April 30, 2012		     Valuation
Technique		   Unobservable
Input		   Range
of Input Values
    (in thousands)              

Impairment of real estate

   $ 4,400     Indicative Bid   Indicative Bid   N/A(1)

 

(1)

This fair value measurement was developed by a third party source, subject to the Company’s corroboration for reasonableness.