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Earnings (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Computation of basic and diluted income (loss) per share
The following table sets forth the computation of basic and diluted income (loss) per share:
 
For the Years Ended December 31,
 
2014
 
2013
 
2012
Net income (loss) per share:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income (loss)
$
26,201

 
$
(33,748
)
 
$
(134,336
)
Denominator:
 
 
 
 
 
Weighted-average common shares outstanding - basic
114,318

 
112,415

 
110,769

Effect of potential dilutive common shares
3,306

 
—

 
—

Weighted-average common shares outstanding - diluted
117,624

 
112,415

 
110,769

Basic net income (loss) per share
$
0.23

 
$
(0.30
)
 
$
(1.21
)
Diluted net income (loss) per share
$
0.22

 
$
(0.30
)
 
$
(1.21
)