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Accumulated Other Comprehensive Income
6 Months Ended
Jun. 30, 2011
Accumulated Other Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Income
14.           Accumulated Other Comprehensive Income

A reconciliation of the amounts contained in accumulated other comprehensive income is as follows:

   
Accumulated other comprehensive income
 
As of December 31, 2010
 $929 
      
Increases to fair value during period
  276 
Decreases due to realization of a gain
  (366)
      
As of March 31, 2011
 $839 
      
Decreases to fair value during period
  (403)
Decreases due to realization of a gain
  (81)
      
As of June 30, 2011
 $355