Short-Term Investments - Summary of Short-Term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 27,522	$ 71,782
Unrealized Gains	1	5
Unrealized Losses	(6)	(4)
Estimated Fair Value	27,517	71,783
Commercial Paper
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	16,991	27,136
Unrealized Gains	1
Unrealized Losses	(5)
Estimated Fair Value	16,987	27,136
U.S. Government and Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	10,531	18,136
Unrealized Gains		5
Unrealized Losses	(1)
Estimated Fair Value	$ 10,530	18,141
Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost		26,510
Unrealized Losses		(4)
Estimated Fair Value		$ 26,506

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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