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COMPUTATION OF EARNINGS PER COMMON SHARE (Tables)
 3 Months Ended
Jun. 30, 2016
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings per Common Share
The following table sets forth the computation of basic and diluted earnings per common share for the three months ended June 30, 2015 and 2016:
 
 
Three Months Ended 
 June 30,
(in thousands, except per share data)
 
2015
 
2016
Numerator:
 
 
 
 
Net income
 
$
21,228

 
$
20,387

 
 
 
 
 
Denominator:
 
 
 
 
Weighted average common shares-basic
 
38,002

 
32,243

Dilutive effect of employee equity incentive plans
 
941

 
575

Weighted average common shares-diluted
 
38,943

 
32,818

 
 
 
 
 
Basic earnings per common share
 
$
0.56

 
$
0.63

Diluted earnings per common share
 
$
0.55

 
$
0.62

 
 
 
 
 
Potentially dilutive securities excluded from diluted earnings per common share because their effect is anti-dilutive
 
235

 
1,023