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Property, Plant and Equpment, Net
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment, Net [Abstract]  
Property, Plant and Equipment Disclosure
Property, Plant and Equipment, Net
Property, plant and equipment, net includes the following:
 
December 31
 
2013
 
2012
Land and land improvements
$
20.8

 
$
17.2

Plant and equipment
545.1

 
510.2

Property, plant and equipment, at cost
565.9

 
527.4

Allowances for depreciation and amortization
(401.7
)
 
(381.3
)
 
$
164.2

 
$
146.1



Total depreciation and amortization expense on property, plant and equipment was $30.2 million, $28.0 million and $31.3 million during 2013, 2012, and 2011, respectively.