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Other expense, net (Tables)
 6 Months Ended
Jun. 30, 2018
Other Income and Expenses [Abstract]  
Schedule Other Expense/(Income), net

The components of Other expense, net are:

         
  Three months ended
June 30,		 Six months ended
June 30,
(in thousands)   2018 2017 2018 2017
Currency transaction (gains)/losses ($9) $1,948 $681 $2,049
Bank fees                96              111              204            259
Components of net periodic pension and postretirement cost other than service              259              627              525         1,249
Other                380             (128)              768           (173)
Total   $726 $2,558 $2,178 $3,384