Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured on Recurring Basis

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values (in thousands):

	September 30, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	10	$	—	$	—	$	10
Cash equivalents(1)		10		—		—		10
Asset-backed securities		—		14,689		—		14,689
Corporate debt securities		—		5,722		—		5,722
Commercial paper		—		2,749		—		2,749
Marketable debt securities		—		23,160		—		23,160
Total fair value of assets	$	10	$	23,160	$	—	$	23,170
Liabilities:
Contingent consideration	$	—	$	—	$	2,880		2,880
Total fair value of liabilities	$	—	$	—	$	2,880	$	2,880

	December 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	7,232	$	—	$	—	$	7,232
Cash equivalents(1)		7,232		—		—		7,232
Asset-backed securities		—		19,598		—		19,598
Corporate debt securities		—		19,394		—		19,394
Commercial paper		—		17,892		—		17,892
U.S. Government agency bonds		—		5,497		—		5,497
Marketable debt securities		—		62,381		—		62,381
Total fair value of assets	$	7,232	$	62,381	$	—	$	69,613
Liabilities:
Redeemable convertible preferred stock warrant    liability	$	—	$	—	$	1,881		1,881
Total fair value of liabilities	$	—	$	—	$	1,881	$	1,881

(1) Included in cash and cash equivalents in the condensed consolidated balance sheets

Schedule of Changes in Fair Value of Level 3 Financial Instruments

The following tables presents a summary of the changes in the fair value of the Company’s Level 3 financial instruments (in thousands):

	Redeemable Convertible Preferred Stock Tranche Liability			TRDF Liability			Redeemable Convertible Preferred Stock Warrant Liability
Fair value as of December 31, 2018	$	3,113		$	142		$	—
Recognition of preferred stock warrant liabilities		—			—			2,131
Change in the fair value included in other income, net		(1,970	)		(54	)		(62	)
Settlement		—			(88	)		—
Termination		(1,143	)		—			—
Fair value as of September 30, 2019	$	—		$	—		$	2,069

	Redeemable Convertible Preferred Stock Warrant Liability
Fair value as of December 31, 2019	$	1,881
Recognition of preferred stock warrant liability		144
Change in the fair value included in other income, net		897
Conversion of convertible preferred stock warrant into common stock warrant    in connection with Merger		(2,922	)
Fair value as of September 30, 2020	$	—