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Net Income Per Share (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Schedule Of Net Income Per Share
Net income per share for the years ended December 31, 2017, 2016 and 2015 was as follows:
 
 
 
Year Ended December 31,
 
 
2017
 
2016
 
2015
 
 
(In thousands, except per share data)
Numerator:
 
 
 
 
 
 
Net income
 
$
19,436

 
$
75,851

 
$
48,584

Denominator:
 
 
 
 
 
 
Weighted average common shares - basic
 
32,097

 
32,758

 
33,161

Potentially dilutive common share equivalent
 
947

 
970

 
627

Weighted average common shares - dilutive
 
33,044

 
33,728

 
33,788

 
 
 
 
 
 
 
Basic net income per share
 
$
0.61

 
$
2.32

 
$
1.47

Diluted net income per share
 
$
0.59

 
$
2.25

 
$
1.44

 
 
 
 
 
 
 
Anti-dilutive employee stock-based awards, excluded
 
279

 
258

 
1,807