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Computation of Earnings per Common Share
6 Months Ended
Sep. 30, 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
  
Six Months Ended
 
   
September 30,
  
September 30,
 
Basic earnings per share:
 
2011
  
2010
  
2011
  
2010
 
              
Numerator:
            
Net income
 $22,679  $25,992  $39,664  $38,637 
                  
Denominator:
                
Weighted-average common shares outstanding
  218,521   221,280   218,373   222,900 
                  
Basic earnings per share
 $0.10  $0.12  $0.18  $0.17 
                  
Diluted earnings per share:
                
                  
Numerator:
                
Net income
 $22,679  $25,992  $39,664  $38,637 
                  
Denominator:
                
Weighted-average common shares outstanding
  218,521   221,280   218,373   222,900 
Dilutive effect of stock awards
  3,604   3,114   4,439   3,071 
                  
Total shares
  222,125   224,394   222,812   225,971 
                  
Diluted earnings per share
 $0.10  $0.12  $0.18  $0.17 
 
During the three and six months ended September 30, 2011, stock awards to purchase a total of approximately 14.1 million and 8.4 million shares, respectively, were excluded from the diluted earnings per share calculation because they were anti-dilutive. During the three and six months ended September 30, 2010, stock awards to purchase a total of approximately 19.6 million and 19.9 million shares, respectively, were excluded from the diluted earnings per share calculation because they were anti-dilutive.