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Restructuring Charges (Tables)
 6 Months Ended
Jun. 30, 2019
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve
The following table reflects the movement of activity of the restructuring reserve for the six months ended June 30, 2019:

One-time termination benefits
Accrual balance as of December 31, 2018
$
562

Restructuring charges
419

Utilization
(591
)
Accrual balance as of June 30, 2019
$
390