Share-Based Compensation - Summary of assumptions used for grant date fair value under binomial tree option pricing model (Detail) - Equity Incentive Plans [Member] - $ / shares |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2023 |
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| Risk-free interest rates | 1.83% | 3.80% |
| Expected volatility range | 61.10% | 55.10% |
| Expected dividend yield | 0.00% | 0.00% |
| Fair value per option granted (US$) | $ 0.76 | $ 0.81 |
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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 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 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 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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- Details
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