Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Schedule of Cash Equivalents and Marketable Securities Classified as Available-for-Sale Securities Measured at Fair Value on Recurring Basis

Cash equivalents and marketable securities, all of which are classified as available-for-sale securities and measured at fair value on a recurring basis, consisted of the following (in thousands):

		As of September 30, 2021
	Fair Value Hierarchy Level	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Financial assets:
Money market funds—classified as cash equivalents	Level 1	$	58,368	$	—	$	—		$	58,368
Corporate debt	Level 2		78,478		10		(24	)		78,464
Commercial paper	Level 2		53,539		—		—			53,539
U.S. government agency securities	Level 2		18,777		7		—			18,784
Total		$	209,162	$	17	$	(24	)	$	209,155

		As of December 31, 2020
	Fair Value Hierarchy Level	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Financial assets:
Money market funds—classified as cash equivalents	Level 1	$	21,333	$	—	$	—		$	21,333
Corporate debt	Level 2		32,164		48		—			32,212
Asset-backed securities	Level 2		12,367		2		(1	)		12,368
Commercial paper	Level 2		28,962		—		—			28,962
U.S. government agency securities	Level 2		13,047		3		—			13,050
Total		$	107,873	$	53	$	(1	)	$	107,925

Schedule of Remaining Contractual Maturities of Marketable Securities

The following table presents the remaining contractual maturities of the Company’s marketable securities as of September 30, 2021 (in thousands):

	September 30, 2021
Due in less than one year	$	157,095
Due in more than one year		52,060
Total	$	209,155