Investments - Summary of Amortized Cost and Estimated Fair Value of Investments by Contractual Maturity (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 82,934
Fair Value	82,934
Maturing in One Year or Less | Corporate Debt
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,406
Fair Value	1,406
Maturing in One Year or Less | U.S. Treasuries
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	10,173
Fair Value	10,173
Maturing after One Year through Five Years | Corporate Debt
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	6,439
Fair Value	6,439
Maturing after One Year through Five Years | U.S. Treasuries
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	64,916
Fair Value	$ 64,916