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Quarterly Financial Information
12 Months Ended
Sep. 30, 2011
Quarterly Financial Information 
Quarterly Financial Information
NOTE 13. QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

The following table presents selected consolidated financial data by quarter for each of the last two fiscal years.
 
2011 Quarter Ended
                       
 
 
December 31, 2010
   
March 31, 2011
   
June 30, 2011
   
September 30, 2011
 
                         
Net revenues
  $ 374.2     $ 402.1     $ 384.8     $ 430.6  
Gross profit
  $ 184.5     $ 198.6     $ 187.6     $ 210.6  
Net income attributable to common shareholders
  $ 35.2     $ 33.1     $ 1.5     $ 63.5  
Basic net income attributable to common
                               
shareholders per common share
  $ 0.56     $ 0.53     $ 0.02     $ 1.01  
Diluted net income attributable to common
                               
shareholders per common share
  $ 0.55     $ 0.52     $ 0.02     $ 1.01  
                                 
                                 
2010 Quarter Ended
                               
 
 
December 31, 2009
   
March 31, 2010
   
June 30, 2010
   
September 30, 2010
 
                                 
Net revenues
  $ 355.3     $ 357.1     $ 360.6     $ 396.6  
Gross profit
  $ 170.8     $ 171.8     $ 178.0     $ 196.0  
Net income attributable to common shareholders
  $ 19.8     $ 24.2     $ 30.6     $ 50.7  
Basic net income attributable to common
                               
shareholders per common share
  $ 0.32     $ 0.38     $ 0.48     $ 0.80  
Diluted net income attributable to common
                               
shareholders per common share
  $ 0.31     $ 0.38     $ 0.48     $ 0.79