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Net Income (Loss) Per Share
 12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Net Income (Loss) Per Share
NET INCOME (LOSS) PER SHARE
Basic net income (loss) per share is computed by dividing the net income (loss) attributable to common stockholders for the applicable period by the weighted average number of common shares outstanding during the period. In the years ended December 31, 2014, 2013 and 2012, there were 9,526,847, 6,890,820 and 14,136,804, respectively, of potentially dilutive shares, consisting of options, restricted stock units and employee stock purchase plan awards, excluded from the net income (loss) per share computations because their effect was anti-dilutive.
The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except per share amounts):
 
December 31,
 
2014
 
2013
 
2012
Numerator:
 
 
 
 
 
  Income (loss) from continuing operations
$
(46,248
)
 
$
21,589

 
$
(16,189
)
  Income from discontinued operations
—

 
15,438

 
5,252

  Net income (loss)
$
(46,248
)
 
$
37,027

 
$
(10,937
)
Denominator:
 
 
 
 
 
Weighted average shares outstanding:
 
 
 
 
 
  Basic
92,508

 
106,529

 
116,457

  Effect of dilutive securities from stock options, restricted stock units and ESPP
—

 
1,279

 
—

  Diluted
92,508

 
107,808

 
116,457

Basic net income (loss) per share from:
 
 
 
 
 
  Continuing operations
$
(0.50
)
 
$
0.20

 
$
(0.14
)
  Discontinued operations
$
—

 
$
0.14

 
$
0.05

  Net income (loss)
$
(0.50
)
 
$
0.35

 
$
(0.09
)
Diluted net income (loss) per share from:
 
 
 
 
 
  Continuing operations
$
(0.50
)
 
$
0.20

 
$
(0.14
)
  Discontinued operations
$
—

 
$
0.14

 
$
0.05

  Net income (loss)
$
(0.50
)
 
$
0.34

 
$
(0.09
)

The diluted net loss per share is the same as basic net loss per share for the years ended December 31, 2014 and December 31, 2012 because potential common shares are only considered when their effect would be dilutive.