Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2021

Cash and Cash Equivalents [Abstract]

Marketable Available-for-Sale Securities

Marketable available-for-sale securities consist of the following (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
As of December 31, 2021:
Cash equivalents:
Money market funds	$	85,638	$	—	$	—		$	85,638
Total cash equivalents		85,638		—		—			85,638
Current marketable securities:
U.S. and foreign commercial paper		28,760		—		—			28,760
U.S. and foreign corporate debt securities		15,476		—		(8	)		15,468
Asset-backed securities		8,524		1		(3	)		8,522
U.S. treasury securities		7,982		—		(3	)		7,979
Total current marketable securities		60,742		1		(14	)		60,729
Non-current marketable securities:
U.S. corporate debt securities		8,067		2		(2	)		8,067
Total marketable securities	$	154,447	$	3	$	(16	)	$	154,434

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
As of December 31, 2020:
Cash equivalents:
Money market funds	$	22,415	$	—	$	—		$	22,415
Total cash equivalents		22,415		—		—			22,415
Current marketable securities:
U.S. and foreign commercial paper		38,561		—		—			38,561
U.S. and foreign corporate debt securities		29,186		7		(4	)		29,189
Asset-backed securities		7,883		2		—			7,885
U.S. treasury securities		23,991		3		—			23,994
U.S. agency securities		15,498		1		—			15,499
Supranational debt securities		3,003		—		(1	)		3,002
Total current marketable securities		118,122		13		(5	)		118,130
Total marketable securities	$	140,537	$	13	$	(5	)	$	140,545

Schedule of fair value of the Company marketable securities by contractual maturity

The following table shows the fair value of the Company’s marketable securities, by contractual maturity, as of December 31, 2021 (in thousands):

Due less than 1 year	$	146,367
Due between 1 and 2 years		8,067
Total fair value	$	154,434