Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2019

Schedule of basic and diluted net loss per share

Basic and diluted net loss per share for the periods set forth below is calculated as follows (in thousands, except share and per share amounts):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Numerator:
Net loss	$	(30,044	)	$	(49,802	)	$	(108,278	)	$	(180,239	)

Denominator:
Weighted-average number of common shares used in loss per share - basic and diluted	46,141,217			45,498,909			45,975,691			45,291,176
Loss per share - basic and diluted	$	(0.65	)	$	(1.09	)	$	(2.36	)	$	(3.98	)

Schedule of potentially dilutive securities excluded from the computation of diluted weighted-average shares outstanding

The following potentially dilutive securities, prior to the use of the treasury stock method, have been excluded from the computation of diluted weighted-average shares outstanding, as they would be anti-dilutive. For the three and nine months ended September 30, 2019 and 2018, respectively, all the Company’s options to purchase common stock, warrants, and restricted stock units outstanding were assumed to be anti-dilutive as earnings attributable to common stockholders was in a loss position.



	Three and Nine Months Ended September 30,
	2019	2018
Options to purchase common stock	4,860,997	5,759,140
Warrants	—	120,532
Restricted stock units	655,723	262,002
Performance units	79,000	—