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Inventories
6 Months Ended
Jun. 30, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories are valued at the lower of cost (first in, first out) or market. Inventories consist of the following (in thousands):
 
 
June 30,
2012
 
December 31,
2011
Raw materials
$
36,473

 
$
29,770

Work-in-progress
8,786

 
8,580

Finished goods and purchased products
116,136

 
77,303

 
$
161,395

 
$
115,653