Net Loss Per Share

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Net loss per share

Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data): 

	Three Months Ended   March 31,
	2017			2016
Net loss	$	(6,795	)	$	(11,667	)
Weighted-average common shares outstanding	86,783			83,462
Net loss per share - basic and diluted	$	(0.08	)	$	(0.14	)

The following table presents the number of anti-dilutive shares excluded from the calculation of diluted net loss per share at March 31, 2017 and 2016 (in thousands):

	March 31,
	2017	2016
Options to purchase common stock	21,823	23,966
Common stock warrants	1,459	1,605
Non-vested restricted stock unit awards	4,015	4,440
Total shares excluded from net loss per share	27,297	30,011