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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2017
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring and Related Costs
The following table sets forth a summary of restructuring activities related to the Company's 2016 restructuring program in 2017 (in thousands):
    
December 31, 2016
 
Costs Incurred
 
Cash Payments
 
December 31, 2017
Termination benefits
$
273

 
$
—

 
$
(88
)
 
$
185

The following table sets forth a summary of restructuring activities related to the Company's 2016 restructuring program in 2016 (in thousands):
    
December 31, 2015

Costs Incurred

Cash Payments

December 31, 2016
Termination benefits
$
—


$
286


$
(13
)

$
273