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Inventories
3 Months Ended
Mar. 31, 2012
Inventories  
Inventories

Note 3.  Inventories

 

Inventories are stated at lower of cost or market.  Cost is determined principally on a first-in, first-out basis.  Inventories consisted of the following (in thousands):

 

 

 

 

March 31,

 

December 31,

 

 

 

2012

 

2011

 

Raw materials

 

$

644,142

 

$

609,150

 

Supplies

 

258,061

 

251,716

 

Work-in-progress

 

106,110

 

106,609

 

Finished goods

 

262,628

 

232,109

 

Total inventories

 

$

1,270,941

 

$

1,199,584