Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2017

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Stock options, RSUs, restricted stock awards, PSUs, and shares issuable upon the conversion of the Notes outstanding at March 31, 2017 and 2016, which are excluded from the computation of diluted net loss per share for the three months ended March 31, 2017 and 2016, are shown in the table below:



	Three Months Ended March 31,
	2017	2016
Options to purchase common stock	2,945,397	3,370,113
Non-vested restricted stock awards and RSUs	597,673	408,895
Non-vested PSUs	484,746	470,612
Shares issuable upon conversion of the Notes	7,337,459	7,337,459
Potentially dilutive common shares	11,365,275	11,587,079

Schedule of Earnings Per Share, Basic and Diluted

A summary of the net loss per share calculation is shown below for the periods indicated (in thousands, except share and per share amounts):



	Three Months Ended March 31,
	2017			2016
Net loss	$	(18,524	)	$	(17,291	)
Common shares outstanding:
Historical common shares outstanding at beginning of period	43,303,298			42,632,771
Weighted average common shares issued	187,885			64,552
Weighted average common shares outstanding — basic and diluted	43,491,183			42,697,323
Net loss per share — basic and diluted	$	(0.43	)	$	(0.40	)