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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2018
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Liability
The following table sets forth activity in the restructuring liability for the year ended December 31, 2018 (in thousands):
 
Balance at December 31, 2017
 
Costs Incurred
 
Payments
 
Translation Adjustment
 
Balance at December 31, 2018
 
 
Cumulative Costs Incurred to Date
2015 Initiatives
 
 
 
 
 
 
 
 
 
 
 
 
Employee Severance Costs
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
 
$
4,131

Facility Exit Related Costs
981

 
114

 
(461
)
 
—

 
634

 
 
1,842

2017 Initiatives
 
 
 
 
 
 
 
 
 
 
 
 
Employee Severance Costs
287

 
61

 
(359
)
 
11

 
—

 
 
3,412

Facility Exit Related Costs
106

 
2

 
(108
)
 
—

 
—

 
 
285

Other Related Costs
160

 
20

 
(180
)
 
—

 
—

 
 
675

2018 Initiatives
 
 
 
 
 
 
 
 
 
 
 
 
Employee Severance Costs
—

 
994

 
(960
)
 
(34
)
 
—

 
 
994

Total
$
1,534

 
$
1,191

 
$
(2,068
)
 
$
(23
)
 
$
634

 
 
$
11,339