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Restructuring (Tables)
 3 Months Ended
Mar. 31, 2018
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve by Type of Cost
The following is a reconciliation of the beginning and ending balances of our restructuring liability:

 
Severance and Related Benefits
 
Facilities
 
Total
Balance at January 1, 2018
$
62

 
$
340

 
$
402

Additions
—

 
—

 
—

Accretion of lease obligations
—

 
6

 
6

Adjustment of lease obligations
—

 
(56
)
 
(56
)
Payments
(62
)
 
(6
)
 
(68
)
Balance at March 31, 2018
$
—

 
$
284

 
$
284