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COMPUTATION OF EARNINGS PER COMMON SHARE
 6 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
COMPUTATION OF EARNINGS PER COMMON SHARE
COMPUTATION OF EARNINGS PER COMMON SHARE

The following table sets forth the computation of basic and diluted earnings per common share for the three and six months ended September 30, 2012 and 2011:

 
 
Three Months Ended
 
Six Months Ended
 
 
September 30,
 
September 30,
(in thousands, except per share data)
 
2012
 
2011
 
2012
 
2011
Numerator:
 
 
 
 
 
 
 
 
Net income
 
$
25,924

 
$
27,521

 
$
49,487

 
$
54,252

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 

 
 
 
 
Weighted average common shares-basic
 
41,482

 
44,556

 
41,571

 
45,664

Dilutive effect of employee equity incentive plans
 
921

 
1,161

 
950

 
1,286

Weighted average common shares-diluted
 
42,403

 
45,717

 
42,521

 
46,950

 
 
 
 
 
 
 
 
 
Basic earnings per common share
 
$
0.62

 
$
0.62

 
$
1.19

 
$
1.19

 
 
 
 
 
 
 
 
 
Diluted earnings per common share
 
$
0.61

 
$
0.60

 
$
1.16

 
$
1.16

 
 
 
 
 
 
 
 
 
Potentially dilutive securities excluded from diluted earnings per common share because their effect is anti-dilutive
 
1,061

 
1,946

 
1,081

 
1,781