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Inventories
6 Months Ended
Jun. 30, 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):

 

 

 

June 30,

 

December 31,

 

 

 

2012

 

2011

 

Raw materials

 

$

654,831

 

$

609,150

 

Supplies

 

262,061

 

251,716

 

Work-in-progress

 

82,839

 

106,609

 

Finished goods

 

252,422

 

232,109

 

Total inventories

 

$

1,252,153

 

$

1,199,584