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Earnings (Loss) Per Share (Tables)
 6 Months Ended
Jun. 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 June 30,
 
Six Months Ended June 30,
 
2017
 
2016
 
2017
 
2016
Net income per share:
(In thousands, except per share amounts)
Numerator:
 

 
 

 
 
 
 
Net income
$
2,605

 
$
3,876

 
$
5,611

 
$
5,754

Denominator:
 
 
 
 
 
 
 
Weighted-average shares outstanding - basic
110,060

 
109,904

 
110,758

 
109,818

Effect of potential dilutive common shares
2,505

 
2,157

 
3,333

 
2,384

Weighted-average shares outstanding - diluted
112,565

 
112,061

 
114,091

 
112,202

Basic net income per share
$
0.02

 
$
0.04

 
$
0.05

 
$
0.05

Diluted net income per share
$
0.02

 
$
0.03

 
$
0.05

 
$
0.05