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Inventory (Tables)
 3 Months Ended
Mar. 31, 2016
Inventory.  
Schedule of Inventory

Inventory as of March 31, 2016 and December 31, 2015 consists of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

    

March 31, 2016

    

December 31, 2015

 

Raw materials and supplies

 

$
26,708

 

$
23,705

 

Work-in-process

 

 
8,589

 

 
5,567

 

Finished goods

 

 
3,853

 

 
3,480

 

 

 

$
39,150

 

$
32,752