Stock-Based Compensation - Schedule of Information Related to Stock Options Outstanding (Detail) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026 USD ($) $ / shares shares	Dec. 31, 2025 USD ($) $ / shares shares
Stock-Based Compensation
Number of Stock Options, Outstanding \| shares	11,289,920
Number of Stock Options, Granted \| shares	2,215,309
Number of Stock Options, Exercised \| shares	(7,458)
Number of Stock Options, Forfeited or expired \| shares	(1,456,559)
Number of Stock Options, Outstanding \| shares	12,041,212	11,289,920
Number of Stock Options, Exercisable \| shares	5,862,145
Number of Stock Options, Vested and expected to vest \| shares	11,288,964
Weighted-average Exercise Price, Outstanding \| $ / shares	$ 7.33
Weighted-average Exercise Price, Granted \| $ / shares	4.09
Weighted-average Exercise Price, Exercised \| $ / shares	2.95
Weighted-average Exercise Price, Forfeited or expired \| $ / shares	8.14
Weighted-average Exercise Price, Outstanding \| $ / shares	6.64	$ 7.33
Weighted-average Exercise Price, Exercisable \| $ / shares	8.64
Weighted-average Exercise Price, Vested and expected to vest \| $ / shares	$ 6.75
Weighted-average Remaining Contractual Term, Outstanding	5 years 10 months 24 days	5 years 7 months 6 days
Weighted-average Remaining Contractual Term, Exercisable	5 years 10 months 24 days
Weighted-average Remaining Contractual Term, Vested and expected to vest	5 years 10 months 24 days
Weighted-average Intrinsic Value, Outstanding \| $	$ 877
Weighted-average Intrinsic Value, Outstanding \| $	584	$ 877
Aggregate Intrinsic Value, Exercisable \| $	494
Aggregate Intrinsic Value, Vested and expected to vest \| $	$ 576

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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