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Computation of Earnings per Common Share
9 Months Ended
Dec. 31, 2011
Computation of Earnings per Common Share [Abstract]  
Computation of Earnings per Common Share
Note 6 - Computation of Earnings per Common Share

Earnings per common share data were computed as follows (in thousands, except per share amounts):

   
Three Months Ended
  
Nine Months Ended
 
   
December 31,
  
December 31,
 
Basic earnings per share:
 
2011
  
2010
  
2011
  
2010
 
              
Numerator:
            
Net income
 $21,588  $33,999  $61,252  $72,636 
                  
Denominator:
                
Weighted-average common shares outstanding
  218,534   218,683   218,427   221,490 
                  
Basic earnings per share
 $0.10  $0.16  $0.28  $0.33 
                  
Diluted earnings per share:
                
                  
Numerator:
                
Net income
 $21,588  $33,999  $61,252  $72,636 
                  
Denominator:
                
Weighted-average common shares outstanding
  218,534   218,683   218,427   221,490 
Dilutive effect of stock awards
  3,349   6,475   4,134   3,622 
                  
Total shares
  221,883   225,158   222,561   225,112 
                  
Diluted earnings per share
 $0.10  $0.15  $0.28  $0.32 

During the three and nine months ended December 31, 2011, stock awards to purchase a total of approximately 15.3 million and 10.9 million shares, respectively, were excluded from the diluted earnings per share calculation because they were anti-dilutive. During the three and nine months ended December 31, 2010, stock awards to purchase a total of approximately 5.2 million and 17.6 million shares, respectively, were excluded from the diluted earnings per share calculation because they were anti-dilutive.