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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
Inventories:
The following table provides a breakdown of inventories at March 31, 2015 and December 31, 2014:
 
March 31,
 
December 31,
 
2015
 
2014
 
(In thousands)
Finished goods
$
412,391

 
$
262,769

Raw materials
97,287

 
53,152

Work in process
58,136

 

Stores, supplies and other
52,363

 
42,440

Total inventories
$
620,177

 
$
358,361