Financial Instruments and Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present the Company’s financial assets and liabilities measured at fair value on a recurring basis:

`	As of December 31, 2019
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial Assets
Cash and cash equivalents:
Money market funds	$	70,059	$	—	$	—	$	—
Total financial assets	$	70,059	$	—	$	—	$	—
Financial Liabilities
Other long-term liabilities:
Series F Preferred Stock Warrant		—		—		1,403		1,403
Total financial liabilities	$	—	$	—	$	1,403	$	1,403
`	As of September 30, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial Assets
Cash and cash equivalents:
Money market funds	$	490,031	$	—	$	—	$	—
Total financial assets	$	490,031	$	—	$	—	$	—

Schedule of Reconciliation of Preferred Stock Warrant Measured at Fair Value Using Level 3 Inputs

The following table presents a reconciliation of the Series F Preferred Stock Warrant, which is measured at fair value using Level 3 inputs:

	Series F Preferred Stock Warrant
	(in thousands)
Balance as of December 31, 2019	$	1,403
Change in fair value		20,470
Conversion to common stock warrant		(21,873	)
Balance as of September 30, 2020	$	—