Cash, Cash Equivalents and Short-Term Investments - Additional Information (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Investments Debt And Equity Securities [Abstract] | ||
| Estimated fair value of contractual maturities of short-term investments | $ 21,686 | $ 20,169 |
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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