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Goodwill and Other Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2016
Goodwill and Other Intangible Assets [Abstract]  
Goodwill and acquired intangible assets
The changes in the carrying amount of goodwill and acquired intangible assets for the three months ended March 31, 2016 are as follows:

  
Goodwill
  
Acquired
Intangibles
 
  
(dollars in thousands)
 
Balance at December 31, 2015
 
$
10,045
  
$
8,445
 
Amortization
  
   
(404
)
Foreign currency translation adjustments
  
44
   
19
 
Balance at March 31, 2016
 
$
10,089
  
$
8,060