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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) Segment shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares
Summary Of Significant Accounting Policies [Line Items] |  |  |
Realized gains and losses on marketable securities | $ 0 | $ 0 | $ 0
Other-than-temporary impairments on marketable securities | 0 | $ 0 | $ 0
Transfers of assets measured on recurring basis out of Level 1 into Level 2 | 0 |  |
Transfers of assets measured on recurring basis out of Level 2 into Level 1 | 0 |  |
Transfers of liabilities measured on recurring basis out of Level 1 into Level 2 | 0 |  |
Transfers of liabilities measured on recurring basis out of Level 2 into Level 1 | 0 |  |
Transfers of financial instrument classified as liability into level 3 | 0 |  |
Transfers of financial instrument classified as liability out of level 3 | 0 |  |
Transfers of financial instrument classified as asset into level 3 | 0 |  |
Transfers of financial instrument classified as asset out of level 3 | $ 0 |  |
Number of operating segment | Segment | 1 |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date | Jan. 01, 2019 |  |
Weighted-average shares/units subject to repurchase or forfeiture | shares | 33,600 | 123,285 | 217,524
Accounting Standards Update 2020-06 |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date | Jan. 01, 2021 |  |
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Early Adoption [true false] | true |  |
Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives of assets | 3 years |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives of assets | 5 years |  |

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