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Inventories (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories as of December 31, 2019 and 2018 were as follows:
 
December 31,
In thousands
2019
 
2018
Raw materials
$
36,322

 
$
37,731

Work in process
14,873

 
18,296

Finished goods
29,349

 
28,438

Total inventories
$
80,544

 
$
84,465