Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Outstanding	23,065,514
Granted	3,647,000
Forfeited	(348,481)
Outstanding at March 31, 2024	26,364,033	23,065,514
Vested and expected to vest at March 31, 2024	26,364,033
Options exercisable at March 31, 2024	9,143,369
Weighted-Average Exercise Price, Beginning Balance at December 31, 2023(Per Share)	$ 5.08
Weighted-Average Exercise Price, Granted	4.22
Weighted-Average Exercise Price,Forfeited	6.05
Weighted-Average Exercise Price, Ending Balance at June 30, 2023 (Per Share)	4.95	$ 5.08
Weighted-Average Exercise Price,Vested and expected to vest at March 31, 2024	4.95
Weighted-Average Exercise Price,Options exercisable at March 31, 2024	$ 6.79
Weighted Average Remaining Contractual Term (In Years)	8 years 4 months 24 days	8 years 8 months 12 days
Weighted Average Remaining Contractual Term, Vested and Expected to vest at March 31, 2024	8 years 4 months 24 days
Weighted Average Remaining Contractual Term, Exercisable at JMarch 31, 2024	7 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding at March 31, 2024	$ 24,745
Aggregate Intrinsic Value, Outstanding at June 30, 2023	33,249	$ 24,745
Aggregate Intrinsic Value, Vested and Expected to vest at JMarch 31, 2024	33,249
Aggregate Intrinsic Value, Exercisable at March 31, 2024	$ 9,256

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 718
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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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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 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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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. 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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