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Goodwill (Tables)
12 Months Ended
Dec. 31, 2011
Goodwill [Abstract]  
Goodwill by Segment
                 
    December 31,
2011
    December 31,
2010
 
    (in millions)  

Rail Group

  $ 122.5     $ 122.5  

Construction Products Group

    90.7       62.4  

Energy Equipment Group

    10.9       10.9  

Railcar Leasing and Management Services Group

    1.8       1.8  
   

 

 

   

 

 

 
    $   225.9     $   197.6