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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment  
Property, Plant and Equipment

Note 7—Property, Plant and Equipment

        The following is a summary of property, plant and equipment by major asset class at December 31, (in millions):

 
  2011   2010  

Land

  $ 32.3   $ 28.3  

Building and leasehold improvements

    241.3     231.5  

Machinery, equipment, software and furniture and fixtures

    298.9     281.0  
           

 

    572.5     540.8  

Less accumulated depreciation and amortization

    (323.5 )   (307.1 )
           

Property, plant and equipment, net

  $ 249.0   $ 233.7  
           

        Depreciation expense, which includes the amortization of leasehold improvements, for the years ended December 31, 2011, 2010 and 2009 was $34.8 million, $30.3 million and $27.9 million, respectively.