Stock-Based Compensation - Summary of Weighted Average Assumptions Used to Compute Fair Value of Option Granted (Detail) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Risk-free interest rate | 4.30% | 4.10% | 3.70% | 4.10% |
| Expected term | 5 years 6 months | 5 years 6 months | 5 years 10 months 24 days | 5 years 10 months 24 days |
| Expected volatility of underlying stock | 82.40% | 79.40% | 83.60% | 75.80% |
| Expected dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
| 2016 Employee Stock Purchase Plan [Member] | ||||
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Risk-free interest rate | 3.59% | 4.24% | 3.59% | 4.24% |
| Expected term | 6 months | 6 months | 6 months | 6 months |
| Expected volatility of underlying stock | 121.10% | 66.20% | 121.10% | 66.20% |
| Expected dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Details
|