Net (loss) income per share (Tables)

9 Months Ended

Sep. 30, 2021

Net (loss) income per share

Schedule of computation of basic and diluted net loss income per share

	Three months ended September 30,		Nine months ended September 30,
	2021	2020	2021	2020
Numerator
Net (loss) income	(22,786)	13,138	(54,719)	(47,862)
Denominator
Weighted average shares outstanding - basic	179,861	169,510	174,524	147,766
Effect of dilutive securities:
Restricted Stock Units	—	137	—	—
Stock Options	—	86	—	—
Employee Stock Purchase Plan	—	27	—	—
Weighted average shares outstanding - diluted	179,861	169,760	174,524	147,766
Net (loss) income per share - basic	(0.13)	0.08	(0.31)	(0.32)
Net (loss) income per share - diluted	(0.13)	0.08	(0.31)	(0.32)

Schedule of potentially anti-dilutive securities excluded from calculation of diluted net loss per share

	Three months ended September 30,		Nine months ended September 30,
	2021	2020	2021	2020
Outstanding stock options	12,947,009	11,613,978	12,947,009	12,912,267
Outstanding restricted stock units	1,749,979	807,566	1,749,979	3,758,548
2018 Notes	41,873	3,950,032	41,873	3,950,032
Employee stock purchase plan	29,328	—	29,328	105,533
Total potentially dilutive securities	14,768,189	16,371,576	14,768,189	20,726,380