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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment at December 31 consisted of:
 
 
 
2011
 
2010
Land
 
$
14,995

 
$
15,711

Buildings
 
119,286

 
127,236

Machinery and equipment
 
469,102

 
468,108

 
 
603,383

 
611,055

Less accumulated depreciation
 
(392,599
)
 
(392,621
)
 
 
$
210,784

 
$
218,434