Net Loss Per Common Share

12 Months Ended

Dec. 31, 2016

3. Net Loss Per Common Share

Basic and diluted net income (loss) per common share is determined by dividing net income (loss) by the weighted average common shares outstanding during the period. For the periods where there is a net loss, stock options and RSUs have been excluded from the calculation of diluted net loss per common share because their effect would be anti-dilutive. Therefore, the weighted average common shares used to calculate both basic and diluted net loss per common share would be the same. 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	)

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