Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2021

Marketable Securities [Abstract]

Summary of Marketable Securities

Marketable securities as of March 31, 2021 consisted of the following:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Marketable securities:
Corporate debt securities	$	161,109	$	1	$	(103	)	$	161,007
U.S. Treasury securities		84,988		8		—			84,996
U.S. government debt securities		5,059		—		—			5,059
Total marketable securities, current and non-current	$	251,156	$	9	$	(103	)	$	251,062

Marketable securities as of December 31, 2020 consisted of the following:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Marketable securities:
U.S. Treasury securities	$	189,949	$	13	$	—	$	189,962
Total marketable securities, current	$	189,949	$	13	$	—	$	189,962