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Other Noncurrent Liabilities (Tables)
6 Months Ended
Jun. 30, 2012
Other noncurrent liabilities [Abstract]  
Components of Other Noncurrent Liabilities
                 
    December 31,
2011
    June 30,
2012
 
    (In millions)  

Reserve for uncertain tax positions

  $ 11.9     $ 13.0  

Employee benefits

    10.2       9.6  

Other

    5.3       5.2  
   

 

 

   

 

 

 

Total

  $ 27.4     $ 27.8