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Goodwill (Tables)
6 Months Ended
Jun. 30, 2018
Changes to Carrying Amount of Goodwill
The changes to the carrying amount of goodwill as of June 30, 2018 are summarized as follows (in thousands):
 
   
Total
 
Balance, December 31, 2017
 
$
35,384
 
Adjustments to goodwill for foreign currency translation
   
(116
)
Balance, June 30, 2018
 
$
35,268