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Inventories
3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories include the following:
 
March 31,
2018
 
March 31,
2017
 
December 31,
2017
 
(In thousands)
Raw materials and work in process
$
119,704

 
$
121,746

 
$
101,690

Finished goods
558,028

 
648,053

 
499,014

 
$
677,732

 
$
769,799

 
$
600,704