Net Loss per Share of Common Stock (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

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):

	Three Months Ended
	March 31,
	2015			2014
Net loss attributable to common stockholders - basic and diluted	$	(22,006	)	$	(44,985	)
Weighted-average shares outstanding		27,810			2,788
Weighted-average shares used to compute basic and diluted net    loss per share		27,810			2,788
Basic and diluted net loss per common share	$	(0.79	)	$	(16.13	)

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

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

	March 31,
	2015		2014
Options to purchase common stock		2,761,967		2,188,896
Restricted stock units		185,514		—