Equity Incentive Plans - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of shares, Beginning balance \| shares	14,594,720
Number of shares, Stock options granted \| shares	6,219,513
Number of shares, Stock options exercised \| shares	(44,402)
Number of shares, Stock options forfeited \| shares	(1,388,077)
Number of shares, Ending balance \| shares	19,381,754	14,594,720
Number of shares, Vested and Exercisable \| shares	9,350,620
Weighted- average exercise price per share, Beginning balance \| $ / shares	$ 8.29
Weighted- average exercise price per share, Stock options granted \| $ / shares	2.55
Weighted- average exercise price per share, Stock options exercised \| $ / shares	1.47
Weighted- average exercise price per share, Stock options forfeited \| $ / shares	5.79
Weighted- average exercise price per share, Ending balance \| $ / shares	6.64	$ 8.29
Weighted- average exercise price per share, Exercisable \| $ / shares	$ 9.5
Weighted- average remaining contractual term	7 years 8 months 19 days	7 years 11 months 8 days
Weighted- average remaining contractual term, Exercisable	6 years 4 months 2 days
Aggregate intrinsic value \| $	$ 3,356	$ 4,059
Aggregate intrinsic value, Exercisable \| $	$ 538

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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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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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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.

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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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