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Other Noncurrent Assets (Tables)
 12 Months Ended
May 31, 2014
Other Noncurrent Assets  
Schedule of other noncurrent assets
  May 31,  
 
   2014   2013  

Assets under deferred compensation plan

   $ 23.7   $ 20.7  

Cash surrender value of life insurance

     17.3     16.5  

License fees

     13.0     14.7  

Costs in excess of billings

     15.1     9.9  

Debt issuance costs

     9.6     11.9  

Notes receivable

     5.2     16.8  

Other

     16.2     16.2  
           
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   $ 100.1   $ 106.7  
           
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