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Inventories (Tables)
3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories are summarized below (in thousands):
 
March 31,
2016
 
December 31,
2015
Inventories:
 
 
 
Raw materials
$
50,446

 
$
53,876

Work-in-process
560

 
703

Finished goods
135,143

 
154,304

 
$
186,149

 
$
208,883