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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Details of Basic and Diluted EPS
The details of basic and diluted EPS are as follows:
 
Three Months Ended
(in thousands, except per share data)
March 31,
2014
 
March 31,
2013
Net income
$
56,542

 
$
51,023

Weighted average shares outstanding – basic
92,483

 
92,908

Dilutive effect of stock plans
2,466

 
2,258

Weighted average shares outstanding – diluted
94,949

 
95,166

Basic earnings per share
$
0.61

 
$
0.55

Diluted earnings per share
$
0.60

 
$
0.54

Anti-dilutive options
1,205

 
1,118