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COMPUTATION OF EARNINGS (LOSS) PER COMMON SHARE
6 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
COMPUTATION OF EARNINGS (LOSS) 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, 2011 and 2010:
 
 
Three Months Ended
 
Six Months Ended
 
 
September 30,
 
September 30,
(in thousands, except per share data)
 
2011
 
2010
 
2011
 
2010
Numerator:
 
 
 
 
 
 
 
 
Net income
 
$
27,521

 
$
25,429

 
$
54,252

 
$
51,375

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted average common shares-basic
 
44,556

 
47,087

 
45,664

 
47,607

Dilutive effect of employee equity incentive plans
 
1,161

 
1,437

 
1,286

 
1,541

Weighted average common shares-diluted
 
45,717

 
48,524

 
46,950

 
49,148

 
 
 
 
 
 
 
 
 
Earnings per common share-basic
 
$
0.62

 
$
0.54

 
$
1.19

 
$
1.08

 
 
 
 
 
 
 
 
 
Earnings per common share-diluted
 
$
0.60

 
$
0.52

 
$
1.16

 
$
1.05

 
 
 
 
 
 
 
 
 
Potentially dilutive securities excluded from earnings per common share-diluted because their effect is anti-dilutive
 
1,946

 
2,254

 
1,781

 
2,214