Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Computation of basic and diluted 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 June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Net loss	$	(11,242)	$	(24,060)	$	(21,911)	$	(38,425)
Weighted-average common shares outstanding	107,535		105,485		107,279		105,139
Net loss per share - basic and diluted	$	(0.10)	$	(0.23)	$	(0.20)	$	(0.37)

Anti-dilutive shares excluded from the calculation of diluted net loss per share

The following table presents the number of anti-dilutive shares excluded from the calculation of diluted net loss per share at June 30, 2020 and 2019 (in thousands):

	June 30,
	2020	2019
Options to purchase common stock	10,740	13,080
Common stock warrants	1,459	1,459
Non-vested restricted stock unit awards	8,606	6,701
Total shares excluded from net loss per share	20,805	21,240