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Impairment of Certain Real Estate Assets (Tables)
12 Months Ended
Dec. 31, 2011
Impairment of Certain Real Estate Assets [Abstract]  
Details of Impairment of Long-Lived Assets Held and Used by Asset
Piedmont recorded the following impairment charges as a component of income from continuing operations for the years ended December 31, 2011, 2010, and 2009 (in thousands):

 
2011
 
2010
 
2009
Impairment losses recorded in real estate operating expenses:
 
 
 
 
 
Auburn Hills Corporate Center
$

  
$

 
$
10,173

1111 Durham Avenue

  

 
14,274

1441 West Long Lake Road

  

 
10,616

Impairment losses on real estate assets
$

 
$

(1) 
$
35,063


(1) 
During the year ended December 31, 2010, Piedmont recorded an impairment charge of approximately $9.6 million on the 111 Sylvan Avenue building as a component of discontinued operations. See Note 17 below for further detail.
Fair Value, Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation
The following amounts represent the detail of the adjustments recognized during the year ended December 31, 2009 using Level 3 inputs (in thousands):

Wholly-Owned Properties
Net Book
Value
 
Impairment
Recognized
 
Fair Value
Auburn Hills Corporate Center
$
17,633

 
$
10,173

 
$
7,460

1111 Durham Avenue
27,984

 
14,274

 
13,710

1441 West Long Lake Road
17,141

 
10,616

 
6,525

 
$
62,758

 
$
35,063

 
$
27,695