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Restructuring (Tables)
 9 Months Ended
Sep. 30, 2016
Restructuring Charges [Abstract]  
Schedule of restructuring charges related to work-force reduction
 
 
Balance as of
June 30,
2016
 
Expenses,
net
 
Cash
 
Balance as of
September 30, 2016
2016 workforce reduction
 
$
995

 
$
33

 
$
(797
)
 
$
231