Marketable Securities - Summary of Marketable Securities (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Cash equivalents, Amortized Cost	$ 85,221
Cash equivalents, Fair Value	85,221
Marketable securities, Amortized Cost	41,773
Marketable securities, Gross Unrealized Gains	31
Marketable securities, Fair Value	41,804
Total cash equivalents and marketable securities, Amortized Cost	126,994
Total cash equivalents and marketable securities, Gross Unrealized Gains	31
Total cash equivalents and marketable securities, Fair Value	127,025
Money Market Funds
Schedule Of Available For Sale Securities [Line Items]
Cash equivalents, Amortized Cost	85,221
Cash equivalents, Fair Value	85,221
Commercial Paper
Schedule Of Available For Sale Securities [Line Items]
Marketable securities, Amortized Cost	13,026
Marketable securities, Fair Value	13,026
US Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Marketable securities, Amortized Cost	14,996
Marketable securities, Gross Unrealized Gains	2
Marketable securities, Fair Value	14,998
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Marketable securities, Amortized Cost	13,751
Marketable securities, Gross Unrealized Gains	29
Marketable securities, Fair Value	$ 13,780

Cash and cash equivalents amortized cost.

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Cash equivalents and marketable securities accumulated gross unrealized gains before tax.

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Cash equivalents and marketable securities amortized cost basis.

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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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Amortized cost of 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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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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