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Goodwill and Intangible Assets
3 Months Ended
Mar. 31, 2012
Goodwill and Intangible Assets [Abstract]  
Goodwill and Intangible Assets
6. Goodwill and Intangible Assets
 
The changes in the carrying value of Goodwill for the three months ended March 31, 2012 were as follows:
 
      
Accumulated
    
      
Impairment
    
   
Goodwill
  
Losses
  
Total
 
Balance as of December 31, 2011
 $66,523  $(46,220) $20,303 
Foreign currency fluctuations
  1,537   (1,398)  139 
Balance as of March 31, 2012
 $68,060  $(47,618) $20,442 

The balances of acquired Intangible Assets, excluding Goodwill, as of March 31, 2012 and December 31, 2011 were as follows:

   
Customer Lists
and
Service Contracts
  
Trade
Name
  
Technology
  
Total
 
Balance as of March 31, 2012:
            
Original cost
 $24,465  $4,701  $7,234  $36,400 
Accumulated amortization
  (9,022)  (1,325)  (2,521)  (12,868)
Carrying value
 $15,443  $3,376  $4,713  $23,532 
Weighted-average original life (in years)
  15   14   13     
                  
Balance as of December 31, 2011:
                
Original cost
 $25,987  $4,583  $7,136  $37,706 
Accumulated amortization
  (10,387)  (1,209)  (2,352)  (13,948)
Carrying value
 $15,600  $3,374  $4,784  $23,758 
Weighted-average original life (in years)
  14   14   13     
 
Amortization expense on Intangible Assets for the three months ended March 31, 2012 and 2011 was $776 and $832, respectively.
 
Estimated aggregate amortization expense based on the current carrying value of amortizable Intangible Assets for each of the five succeeding years and thereafter is as follows:

Remaining 2012
 $1,792 
2013
  2,385 
2014
  2,322 
2015
  2,309 
2016
  2,269 
Thereafter
  12,455 
Total
 $23,532