Fair Value Measurement and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured and Recognized at Fair Value

As of December 31, 2021, financial assets measured and recorded at fair value are as follows (in thousands):

		December 31, 2021
		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Assets
U.S. government securities	Level 1	$	122,657	$	—	$	(592	)	$	122,065
Corporate bonds	Level 2		76,628		8		(127	)		76,509
Commercial paper	Level 2		77,444		—		(1	)		77,443
Marketable securities			276,729		8		(720	)		276,017
Money market funds(1)	Level 1		91,825		—		—			91,825
Total fair value of assets		$	368,554	$	8	$	(720	)	$	367,842

(1) Included in cash and cash equivalents on the balance sheet

As of December 31, 2020, financial assets measured and recognized at fair value are as follows (in thousands):

		December 31, 2020
		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Assets
U.S. government securities	Level 1	$	80,020	$	10	$	—		$	80,030
Corporate bonds	Level 2		72,573		11		(14	)		72,570
Commercial paper	Level 2		63,948		—		—			63,948
Marketable securities			216,541		21		(14	)		216,548
Money market funds(1)	Level 1		67,065		—		—			67,065
Total fair value of assets		$	283,606	$	21	$	(14	)	$	283,613

(1) Included in cash and cash equivalents on the balance sheet