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Property, Plant And Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment, Net [Abstract]  
Schedule Of Property, Plant And Equipment
Property, plant and equipment consist of the following at December 31:
 
 
2012
 
2011
Land
 
$
13,963

 
$
13,509

Building and improvements
 
137,658

 
135,049

Plant and equipment
 
2,131,933

 
2,039,050

Other
 
161,761

 
147,342

 
 
2,445,315

 
2,334,950

Less: Accumulated depreciation
 
(1,287,050
)
 
(1,196,845
)
 
 
1,158,265

 
1,138,105

Construction in progress
 
351,783

 
93,961

Property, plant and equipment, net
 
$
1,510,048

 
$
1,232,066