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Property, Plant And Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following:
 
(In millions)
December 31,
 
2012
 
2011
Land and land improvements
$
71.3

 
$
36.9

Buildings
350.9

 
221.2

Machinery and equipment
1,314.4

 
900.7

Construction in process
150.6

 
137.1

 
1,887.2

 
1,295.9

Accumulated depreciation
(643.7
)
 
(528.0
)
Property, plant and equipment, net
$
1,243.5

 
$
767.9


Depreciation expense was $113.1 million, $86.1 million and $80.7 million in 2012, 2011 and 2010, respectively.
The amount of interest cost capitalized was $1.4 million, $0.5 million and $0.2 million in 2012, 2011 and 2010, respectively.