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Costs Associated with Exit and Restructuring Activities - Restructuring Reserve Activity (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Restructuring reserve activity        
Restructuring charges $ 135 $ 911 $ 375 $ 2,995
April 2014 Plan and June 2016 Plan [Member]        
Restructuring reserve activity        
Restructuring liability at beginning     1,993  
Restructuring charges     375  
Cost paid     (1,039)  
Restructuring liability at ending $ 903   903  
Restructuring Reserve, Translation and Other Adjustment     $ (426)