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Stock-based Compensation - Option Valuation Method (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-based Payment Arrangement, Employee
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average expected volatility	80.94%	74.77%
Weighted average risk-free interest rate	4.04%	3.98%
Weighted average expected term (in years)	6 years 7 days	6 years 14 days
Share-based Payment Arrangement, Nonemployee
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average expected volatility	83.83%	80.12%
Weighted average risk-free interest rate	4.26%	3.89%
Weighted average expected term (in years)	5 years 6 months	5 years 6 months

X

- Definition

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

+ References

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- Definition

Rate of weighted-average expected volatility for award under share-based payment arrangement.

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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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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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