Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Computation of Basic and Diluted Net Loss Per Share

The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, except per share data):

	December 31,
	2015			2014			2013
Net loss attributable to common stockholders - basic and diluted	$	(82,177	)	$	(83,072	)	$	(18,497	)
Weighted-average shares used to compute basic and diluted net loss per share		28,964			18,922			450
Basic and diluted net loss per common share	$	(2.84	)	$	(4.39	)	$	(41.10	)

Summary of Potentially Dilutive Securities Excluded from Computation of Diluted Shares Outstanding

The following potentially dilutive securities outstanding at the end of the years presented have been excluded from the computation of diluted shares outstanding:

	December 31,
	2015		2014		2013
Convertible preferred stock		—		—		10,491,140
Warrants to purchase convertible preferred stock⁽¹⁾		—		—		173,912
Options to purchase common stock		3,240,969		2,723,366		1,403,655
Restricted stock units		254,067		185,514		—

(1)	Assumes exercise of warrants to purchase convertible preferred stock at $5.17 per share.