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Goodwill and Intangible Assets
6 Months Ended
Jun. 30, 2011
Goodwill and Intangible Assets [Abstract]  
Goodwill and Intangible Assets
6. Goodwill and Intangible Assets
     A roll-forward of goodwill is as follows (see Note 5 for additional information about the Company’s business acquisitions):
         
Balance as of December 31, 2010
  $ 3.1  
Goodwill arising from Alexco acquisition
    34.1  
 
     
Balance as of June 30, 2011
  $ 37.2  
 
     
All of the Company’s goodwill is included in the Fabricated Products segment.
     Identifiable intangible assets at June 30, 2011 and December 31, 2010 are comprised of the following:
June 30, 2011:
                                 
    Weighted                      
    average                      
    estimated useful             Accumulated     Net book  
    life     Original cost     amortization     value  
Customer relationships
    25     $ 38.5     $ (0.9 )   $ 37.6  
Backlog
    2       0.8       (0.4 )     0.4  
Trademark and trade name
    3       0.4       (0.1 )     0.3  
 
                         
Total
    24     $ 39.7     $ (1.4 )   $ 38.3  
 
                         
December 31, 2010:
                                 
    Weighted                      
    average                      
    estimated useful             Accumulated     Net book  
    life     Original cost     amortization     value  
Customer relationships
    20     $ 3.8     $ (0.1 )   $ 3.7  
Backlog
    2       0.5       (0.2 )     0.3  
 
                         
Total
    18     $ 4.3     $ (0.3 )   $ 4.0  
 
                         
     Amortization expense relating to definite-lived intangible assets is recorded in the Fabricated Products segment. Such expense was $0.5 and $1.1 for the quarter and six months ended June 30, 2011. The expected amortization of intangible assets for the next five calendar years is as follows:
         
2011
  $ 1.9  
2012
    2.0  
2013
    1.7  
2014
    1.6  
2015
    1.6  
 
     
Total
  $ 8.8