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Restructuring Charges (Tables)
 12 Months Ended
Dec. 31, 2017
Restructuring Plan 2016  
Restructuring Charges.  
Summary of activity and liability balances

Activity and liability balances recorded as part of the restructuring plan through December 31, 2017 are as follows (dollars in thousands):

 

 

 

 

 

 

 

    

 

 

 

 

 

 

 

 

Amount

 

Balance at December 31, 2016

 

$

3,157

 

Utilized—cash (primarily severance related)

 

 

(3,119)

 

Accrual adjustment

 

 

(58)

 

Currency translation

 

 

26

 

Balance at December 31, 2017

 

$

 6