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Restructuring Charges (Tables)
 3 Months Ended
Mar. 31, 2018
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve
The following table reflects the movement of activity of the restructuring reserve for the three months ended March 31, 2018:

One-time Termination Benefits
Accrual balance as of December 31, 2017
$
1,008

Restructuring charges
233

Utilization
(773
)
Accrual balance as of March 31, 2018
$
468