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Earnings (Loss) Per Share (Tables)
 6 Months Ended
Jun. 30, 2016
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 June 30,
 
Six Months Ended June 30,
 
2016
 
2015
 
2016
 
2015
Net income per share:
(In thousands, except per share amounts)
Numerator:
 

 
 

 
 
 
 
Net income
$
3,876

 
$
6,861

 
$
5,754

 
$
16,363

Denominator:
 
 
 
 
 
 
 
Weighted-average shares outstanding - basic
109,904

 
116,027

 
109,818

 
115,683

Effect of potential dilutive common shares
2,157

 
4,912

 
2,384

 
3,542

Weighted-average shares outstanding - diluted
112,061

 
120,939

 
112,202

 
119,225

Basic net income per share
$
0.04

 
$
0.06

 
$
0.05

 
$
0.14

Diluted net income per share
$
0.03

 
$
0.06

 
$
0.05

 
$
0.14