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- Definition

Share based compensation arrangement by share based payment award options vested in period incremental expense resulted in modification.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for 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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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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The estimated measure of the 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.

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

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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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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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Number of shares purchased for issuance under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options vested.

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Purchase price of common stock expressed as a percentage of its fair value.

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Stock-Based Compensation - Additional Information (Detail) - USD ($)	1 Months Ended				3 Months Ended		12 Months Ended
	Jul. 31, 2023	Jun. 30, 2023	Jan. 31, 2022	Jun. 30, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2020	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance					37,049,000
Share based compensation recognized					$ 7,373,000	$ 2,195,000
Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation recognized					$ 100	$ 0
Executives
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options granted to purchase					446,068
Advisors
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation forfeited					254,896
Market Award
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation granted under plan vested period		3 years
Grant date fair value				$ 900,000
Expected volatility				100.00%
Risk-free rate				1.60%
Total incremental expense resulted in modification		$ 100,000	$ 300,000
Market Award \| Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of options vested		111,517	223,034
Market Award \| Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of options vested		111,517	111,517
Market Award \| Tranche Three
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of options vested			111,517
Market Award \| Executives
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options granted, exercise price				$ 2.52
Market Award \| Executives \| Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, outstanding stock options				446,068
Awards with Performance Conditions
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, outstanding stock options					401,462
Stock options, cancelled	299,503
Awards with Performance Conditions \| Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, outstanding stock options							700,965
Awards with Performance Conditions \| Restricted Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, outstanding stock options					382,344		892,136
Stock options, cancelled	254,896				254,896
Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock-based compensation					$ 89,700,000
Weighted-average remaining service period					2 years 7 months 6 days
Restricted Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation forfeited					0
Unvested shares repurchased					0
Shares or restricted stock remained outstanding and unvested					650,000			840,000
Unrecognized stock-based compensation					$ 28,200,000
Weighted-average remaining service period					3 years 4 months 24 days
2023 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation, term of plan					10 years
Share based compensation granted under plan vested period					4 years
Common stock reserved for future issuance					16,373,061
2023 Equity Incentive Plan \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grants vest percentage					100.00%
2020 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, outstanding stock options					0
2023 Employee Share Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance					1,526,984