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Goodwill and Intangible Asset (Tables)
 6 Months Ended
Jun. 30, 2016
Goodwill and Intangible Assets [Abstract]  
Other Intangible Asset
Other intangible assets consist of the following (in thousands):

  
June 30, 2016
  
December 31, 2015
 
  
Cost
  
Accumulated
Amortization
  
Cost
  
Accumulated
Amortization
 
Other intangible assets
 
$
11,286
  
$
11,286
  
$
11,286
  
$
10,157
 
  
$
11,286
  
$
11,286
  
$
11,286
  
$
10,157