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Stockholders' Equity - Activity under Plans (Detail) - 2020 Equity Incentive Plan [Member] - $ / shares | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of Shares, Outstanding, beginning of period | 499,442 |
Number of Shares, Forfeited | (31,417) |
Number of Shares, Expired | (2,200) |
Number of Shares, Outstanding, end of period | 465,825 | 499,442
Number of Shares, Vested and expected to vest | 465,457 | 498,921
Number of Shares, Options exercisable | 465,603 | 495,428
Number of Shares, Outstanding, Weighted Average Exercise Price, beginning of period | $ 101.82 |
Number of Shares, Forfeited, Weighted Average Exercise Price | 90.4 |
Number of Shares, Expired, Weighted Average Exercise Price | 36 |
Number of Shares, Outstanding, Weighted Average Exercise Price, end of period | 102.9 | $ 101.82
Number of Shares,Vested and expected to vest, Weighted Average Exercise Price, end of period | 102.89 | 101.80
Number of Shares, Options exercisable, Weighted Average Exercise Price, end of period | $ 102.9 | $ 101.59
Number of Shares, Outstanding, Weighted Average Remaining Contractual Term (years) | 4 years 2 months 12 days | 4 years 7 months 6 days
Number of Shares, Vested and expected to vest, Weighted Average Remaining Contractual Term (years) | 4 years 2 months 12 days | 4 years 7 months 6 days
Number of Shares, Options exercisable, Weighted Average Remaining Contractual Term (years) | 4 years 2 months 12 days | 4 years 7 months 6 days

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- Definition Line items represent financial concepts included in a table. 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