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Property, Plant and Equipment (Tables)
9 Months Ended
Sep. 30, 2012
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
Property, plant and equipment consists of the following:
(In thousands)
 
September 30
2012
 
December 31
2011
Land
 
$
26,387

 
$
26,729

Land improvements
 
21,014

 
17,960

Buildings and improvements
 
190,725

 
186,799

Machinery and equipment
 
2,966,973

 
2,977,521

Uncompleted construction
 
91,056

 
66,719

Gross property, plant and equipment
 
3,296,155

 
3,275,728

Less: Accumulated depreciation
 
(2,050,975
)
 
(2,001,244
)
Property, plant and equipment, net
 
$
1,245,180

 
$
1,274,484