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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2015
Restructuring and Related Activities [Abstract]  
Activity of Restructuring Liability
The following table sets forth activity of the restructuring liability for the year ended December 31, 2015 (in thousands):
Balance at December 31, 2014
$
—

Costs incurred and charged to expense
588

Payments
(588
)
Balance at December 31, 2015
$
—