Share-Based Compensation - Stock Options Valuation Assumptions (Detail) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
| Weighted average grant date fair value (in dollars per share) | $ 2.60 | $ 1.74 | $ 2.59 | $ 1.85 |
| Risk-free interest rate, Minimum | 4.06% | 3.97% | 3.72% | 3.97% |
| Risk-free interest rate, Maximum | 4.25% | 4.19% | 4.25% | 4.19% |
| Expected volatility, Minimum | 79.13% | 84.03% | 79.13% | 84.03% |
| Expected volatility, Maximum | 81.53% | 84.81% | 82.12% | 89.48% |
| Expected dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
| Minimum | ||||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
| Expected term (in years) | 5 years 6 months | 5 years 5 months 26 days | 5 years 6 months | 5 years 5 months 26 days |
| Maximum | ||||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
| Expected term (in years) | 6 years 29 days | 6 years 29 days | 6 years 29 days | 6 years 29 days |
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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