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Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

2.   Inventories. Inventories at September 30, 2019 and December 31, 2018, consisted of the following (in thousands):

    

September 30, 2019

    

December 31, 2018

Finished goods

$

126,699

$

117,703

Work-in-process

 

24,368

 

14,380

Raw materials

 

65,699

 

65,453

Total Inventories

$

216,766

$

197,536