Net Loss Per Common Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted net income (loss) per common share

The following table sets forth the computation of basic and diluted net income (loss) per common share for the periods indicated:

	Years ended December 31,
	2016			2015			2014
Basic and diluted net loss per common share calculation:
Net loss	$	(193,420	)	$	(105,717	)	$	(116,772	)
Weighted average common shares outstanding	35,486			34,580			33,258
Net loss per common share—basic and diluted	$	(5.45	)	$	(3.06	)	$	(3.51	)

Schedule of potentially dilutive securities that have been excluded from the computations of diluted weighted average common shares outstanding

The following potentially dilutive securities have been excluded from the computations of diluted weighted average common shares outstanding for the periods presented, as they would be anti-dilutive:

	Years ended December 31,
	2016	2015	2014
Stock options outstanding	3,359	3,009	3,680
Restricted stock units	721	288	37
Warrants	—	—	14
Total	4,080	3,297	3,731