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Stock Incentive Plans and Stock-Based Compensation - Assumptions Used to Estimate Fair Value of Share-Based Payment Awards (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Black-Scholes model
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk free interest rate, minimum	3.59%	1.64%	0.53%
Risk free interest rate, maximum	4.72%	4.35%	1.36%
Expected dividend yield	0.00%	0.00%	0.00%
Expected option life (years)	6 years 3 months	6 years 3 months	6 years 3 months
Expected volatility, minimum	101.00%	96.00%	96.00%
Expected volatility, maximum	104.00%	101.00%	99.00%
Monte Carlo model
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk free interest rate, minimum	4.06%
Risk free interest rate, maximum	4.09%
Expected dividend yield	0.00%
Expected option life (years)	9 years
Expected volatility, minimum	42.50%
Expected volatility, maximum	43.00%

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.

+ References

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-Topic 718
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-Name Accounting Standards Codification
-Section 50
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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.

+ References

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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.

+ References

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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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.

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