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Commitments and Contingencies - Additional Information (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2020 | Mar. 31, 2020 | Feb. 28, 2019 | Dec. 31, 2020
Maximum | Research and Development Service Agreement |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Potential milestone payments achieved |  |  |  | $ 1,750,000
Termination payments |  |  |  | $ 500,000
MDACC | Preclinical Studies and Clinical Trials |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Contractual obligation |  | $ 10,000,000 |  |
Contractual obligation period |  | 5 years |  |
Contractual obligation paid | $ 2,000,000 |  |  |
Broad Institute, Inc. | Specialty Screening Services |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Contractual obligation |  |  | $ 1,500,000 |
Contractual obligation period |  |  | 3 years |
Contractual obligation per year |  |  | $ 500,000 |

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