Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share

The computation of the Company’s basic and diluted net loss per share are as follows (in thousands, except share and per share amounts):

	Years Ended December 31,
	2015			2014			2013
Numerator:
Net loss attributable to common stockholders	$	(28,246	)	$	(70,852	)	$	(1,201	)
Deemed dividend to convertible preferred    stockholders		(24,890	)		—			—
Net loss available to common stockholders		(53,136	)		(70,852	)		(1,201	)
Denominator:
Weighted average shares used to compute net    loss per share available to common    stockholders, basic and diluted		55,091			22,795			9,780
Basic and diluted	$	(0.96	)	$	(3.11	)	$	(0.12	)

Schedule of Shares Excluded from Computation of Earnings Per Share

The following shares were excluded from the computation of diluted net loss per share as the impact of including those shares would be anti-dilutive:

	Year Ended December 31,
	2015		2014		2013
Preferred stock		—		54,841		43,998
Warrants		1,251		—		—
Outstanding stock options		12,615		11,408		8,127
Unvested restricted stock units		723		—		—
ESPP		79		—		—
Total		14,668		66,249		52,125