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Net Income (Loss) per Share Attributable to Common Stockholders
12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Net Income (Loss) per Share Attributable to Common Stockholders
Net Income (Loss) per Share Attributable to Common Stockholders
The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stockholders for the years ended December 31, 2014, 2013, and 2012 (in thousands, except for share and per share amounts):
 
 
Year Ended December 31,
 
2014
 
2013
 
2012
Net loss
$
(62,917
)
 
$
(52,448
)
 
$
(58,259
)
Capital contribution on the extinguishment of prior convertible preferred stock

 
74,894

 

Deemed dividend on the issuance of Series E-5 convertible preferred stock

 
(177
)
 

Noncumulative dividend on Series E convertible preferred stock

 
(13,878
)
 

Undistributed earnings allocated to preferred stockholders

 
(8,133
)
 

Net income (loss) attributable to common stockholders, basic
(62,917
)
 
258

 
(58,259
)
Adjustments to net income (loss) for dilutive securities


 
825

 

Net income (loss) attributable to common stockholders, diluted
$
(62,917
)
 
$
1,083

 
$
(58,259
)
Net income (loss) per share attributable to common stockholders
 
 
 
 
 
Basic
$
(3.24
)
 
$
1.17

 
$
(290.48
)
Diluted
$
(3.24
)
 
$
1.05

 
$
(290.48
)
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders:
 
 
 
 
 
Basic
19,391,523

 
220,220

 
200,560

Stock options

 
167,655

 

Warrants to purchase common stock

 
641,275

 

Diluted
19,391,523

 
1,029,150

 
200,560


 
The following common stock equivalents were excluded from the computation of diluted net income (loss) per share for the periods presented because including them would have been antidilutive:
 
 
As of December 31,
 
2014
 
2013
 
2012
Stock options
1,818,323

 

 
306,312

Convertible preferred stock

 
8,689,999

 
1,741,432

Convertible preferred stock warrants

 
184,486

 
82,262

Common stock warrants
198,662

 

 
267,166