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Earnings (Loss) Per Share (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Computation of basic and diluted loss per share
The following table sets forth the computation of basic and diluted net income per share:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Net income per share:
(In thousands, except per share amounts)
Numerator:
 

 
 

 
 
 
 
Net income
$
7,695

 
$
4,511

 
$
13,306

 
$
10,265

Denominator:
 
 
 
 
 
 
 
Weighted-average shares outstanding - basic
109,555

 
110,214

 
110,353

 
109,951

Effect of potential dilutive common shares
3,564

 
3,509

 
3,508

 
2,854

Weighted-average shares outstanding - diluted
113,119

 
113,723

 
113,861

 
112,805

Basic net income per share
$
0.07

 
$
0.04

 
$
0.12

 
$
0.09

Diluted net income per share
$
0.07

 
$
0.04

 
$
0.12

 
$
0.09