Short-term Investments - Summary of Debt Securities by Major Security Type (Detail) $ in Thousands |
Dec. 31, 2019
USD ($)
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| Schedule Of Available For Sale Securities [Line Items] | |
| Amortized cost | $ 15,967 |
| Gross unrealized gains | 26 |
| Fair value | 15,993 |
| U.S. Government Securities [Member] | |
| Schedule Of Available For Sale Securities [Line Items] | |
| Amortized cost | 14,967 |
| Gross unrealized gains | 26 |
| Fair value | 14,993 |
| U.S. Agency Securities [Member] | |
| Schedule Of Available For Sale Securities [Line Items] | |
| Amortized cost | 1,000 |
| Fair value | $ 1,000 |
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- Definition 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). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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