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Marketable Securities (Tables) | 9 Months Ended
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Sep. 30, 2020
Investments Debt And Equity Securities [Abstract] |
Schedule of Amortized Cost, Gross Unrealized Holding Losses and Fair Value of Available-for-Sale Debt Securities by Type of Security | The amortized cost, gross unrealized holding losses and fair value of available-for-sale debt securities by type of security as of September 30, 2020 were as follows:
|  | As of September 30, 2020 |
|  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
U.S. Government-related obligations |  | $ | 312,476 |  |  | $ | 122 |  |  | $ | — |  |  | $ | 312,598 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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