Common Stock (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Schedule of Common Stock Reserved for Future Issuance

Shares of common stock reserved for future issuance, on an as-if converted basis, are as follows:

	June 30, 2020	December 31, 2019
	(in thousands)
Convertible senior notes	19,972	—
Stock options issued and outstanding	20,085	21,191
Remaining shares available for issuance under the 2019 Plan	26,289	29,048
Outstanding and unsettled restricted stock units (RSUs)	7,158	7,175
Shares available for issuance under the ESPP	5,449	5,870
Total shares of common stock reserved	78,953	63,284