Cash Equivalents And Marketable Securities - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Cash equivalents, Amortized Cost	$ 100,745	$ 57,052
Cash equivalents, Fair Value	100,745	57,052
Marketable securities, Amortized Cost	43,115	55,864
Marketable securities, Gross Unrealized Gains		2
Marketable securities, Gross Unrealized Losses	(4)	(4)
Marketable securities, Fair Value	43,111	55,862
Total cash equivalents and marketable securities, Amortized Cost	143,860	112,916
Total cash equivalents and marketable securities, Gross Unrealized Gains		2
Total cash equivalents and marketable securities, Gross Unrealized Losses	(4)	(4)
Total cash equivalents and marketable securities, Fair Value	143,856	112,914
Money Market Funds
Schedule Of Available For Sale Securities [Line Items]
Cash equivalents, Amortized Cost	100,745	57,052
Cash equivalents, Fair Value	100,745	57,052
Commercial Paper
Schedule Of Available For Sale Securities [Line Items]
Marketable securities, Amortized Cost	30,036	32,523
Marketable securities, Fair Value	30,036	32,523
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Marketable securities, Amortized Cost	13,079	23,341
Marketable securities, Gross Unrealized Gains		2
Marketable securities, Gross Unrealized Losses	(4)	(4)
Marketable securities, Fair Value	$ 13,075	$ 23,339